WO2010044197A1 - Imaging optical device - Google Patents

Imaging optical device Download PDF

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Publication number
WO2010044197A1
WO2010044197A1 PCT/JP2009/004805 JP2009004805W WO2010044197A1 WO 2010044197 A1 WO2010044197 A1 WO 2010044197A1 JP 2009004805 W JP2009004805 W JP 2009004805W WO 2010044197 A1 WO2010044197 A1 WO 2010044197A1
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WO
WIPO (PCT)
Prior art keywords
magnet
lens
drive
driving
coil
Prior art date
Application number
PCT/JP2009/004805
Other languages
French (fr)
Japanese (ja)
Inventor
長田章弘
唐沢敏行
武居勇一
武田正
石原久寛
南澤伸司
宮崎清史
柳澤克重
Original Assignee
日本電産サンキョー株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本電産サンキョー株式会社 filed Critical 日本電産サンキョー株式会社
Publication of WO2010044197A1 publication Critical patent/WO2010044197A1/en

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations

Definitions

  • the present invention relates to a photographic optical device having a shake correction function for correcting a shake by swinging a lens driving device on which a lens and an image sensor are mounted.
  • 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.
  • the camera shake is corrected by the movable portion swinging about the pivot shaft by the driving force of the swing mechanism.
  • the swing mechanism is constituted by a driving coil and a driving magnet, the driving coil is fixed to the movable portion, and the driving magnet is fixed to the base.
  • an object of the present invention is to provide a photographing optical device that can be easily assembled even when it is reduced in size and thickness.
  • a photographic optical device includes a lens driving device including a lens, an imaging element, and a lens driving mechanism that drives the lens, a support that supports the lens driving device, and lens driving.
  • a oscillating drive mechanism that oscillates the drive device is provided, and the oscillating drive mechanism includes a drive coil and a drive magnet that are arranged to face each other, and either the drive coil or the drive magnet is a lens drive. It swings with the device, and either the driving coil or the driving magnet is fixed to the support, and the coil mounting member to which the driving coil is mounted is made of a non-magnetic material. And features.
  • the coil attachment member to which the drive coil disposed opposite to the drive magnet is attached is formed of a nonmagnetic material. Therefore, when assembling the photographic optical device, the coil mounting member can be prevented from being attracted by the driving magnet, and the photographic optical device can be assembled smoothly and accurately. As a result, even when the photographic optical device is downsized and thinned, the photographic optical device can be easily assembled.
  • the coil mounting member can be prevented from being attracted to the driving magnet when assembling the photographing optical device, the coil mounting member side and / or the driving magnet side need not be gripped with a large force. good. Therefore, it is possible to prevent an excessive load from being applied to each component constituting the photographing optical apparatus, and it is possible to prevent each component from being damaged. In addition, since it is not necessary to consider the attractive force between the coil mounting member and the driving magnet, it becomes easier to control the driving force of the swing driving mechanism when swinging the lens driving device.
  • the support includes, for example, a case body that constitutes the outer peripheral surface of the imaging optical device as a coil attachment member, the driving coil is fixed to the inner peripheral surface of the case body, and the driving magnet is It is arranged inside the case body and swings with the lens driving device.
  • the photographing optical device preferably includes a stopper member that is fixed to the inner peripheral side of the case body and restricts the swing range of the lens driving device, and the stopper member is preferably formed of a nonmagnetic material. . With this configuration, even when the stopper member that restricts the swing range of the lens driving device is fixed to the inner peripheral side of the case body, the stopper member is used for driving when assembling the photographing optical device. Adsorption to the magnet can be prevented.
  • the photographing optical device can be easily assembled. Further, even when the stopper member is fixed to the inner peripheral side of the case body, it is possible to prevent damage to each component constituting the photographing optical device and to swing the lens driving device. It becomes easy to control the driving force of the swing drive mechanism at the time.
  • the case body is preferably made of a metal material. If comprised in this way, since the case body is formed with the metal material with comparatively high rigidity, it becomes possible to protect appropriately each component arrange
  • the magnet attachment member to which the drive magnet is attached is preferably formed of a magnetic material.
  • the magnet attachment member is a cylindrical cover member that covers the lens driving device, and a driving magnet is attached to a side surface of the cover member, and the cover member swings with respect to the support body together with the lens driving device. It is preferable to constitute a movable module that can move. If comprised in this way, it will become possible to form a magnetic path efficiently using a magnet attachment member.
  • the present invention it is possible to easily assemble a photographing optical device even when the photographing optical device is reduced in size and thickness.
  • FIG. 1 is a perspective view of a photographic optical device according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view taken along a line EE in FIG. 1. It is a disassembled perspective view of the optical device for imaging shown in FIG.
  • FIG. 1 is a perspective view of a photographing optical apparatus 1 according to an embodiment of the present invention.
  • 2 is a cross-sectional view taken along the line EE of FIG.
  • FIG. 3 is an exploded perspective view of the photographing optical device 1 shown in FIG.
  • the three directions orthogonal to each other are defined as an X direction, a Y direction, and a Z direction.
  • 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
  • the Z1 direction side is “up”.
  • the “side” and the Z2 direction side are the “lower” side.
  • 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 photographing 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.
  • the photographing optical device 1 includes a lens driving device 2 on which a lens and an image sensor (not shown) are mounted, and a sensor 4 for detecting a change in the tilt of the lens driving device 2.
  • a support 5 that supports the lens driving device 2 and a rocking drive mechanism 6 that rocks the lens driving device 2.
  • the vertical direction is the direction of the optical axis L (optical axis direction) of the lens driving device 2 when the lens driving device 2 is not swinging.
  • the lens driving device 2 is equipped with a lens and an image sensor as described above. 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.
  • the cover member 9 is made of a magnetic material.
  • the cover member 9 is made of a metal material such as a cold rolled steel plate.
  • a circular through hole 9a is formed at the bottom of the cover member 9 disposed on the upper end side.
  • 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 driving magnet 21, which will be described later, constituting the swing drive mechanism 6 is fixed.
  • the sensor 4 is a gyroscope for detecting a change in the tilt of the lens driving device 2. That is, the sensor 4 is an angular velocity sensor for detecting the angular velocity of the lens driving device 2.
  • the sensor 4 is disposed on the lower side of 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 pickup element mounted on the lens driving device 2 and an end portion of a driving coil 23 described later that constitutes the swing driving mechanism 6.
  • the FPC 10 is drawn around on the lower end side of the photographing optical device 1 and pulled out from, for example, the right side surface of the photographing optical device 1.
  • the senor 4 is arranged inside a sensor cover member 11 formed in a flat and substantially rectangular tube shape with a bottom having an upper end opened.
  • the bottom part of the sensor cover member 11 arranged on the lower end side is formed in a flat shape, and the center part thereof is a contact surface 11a on which a fulcrum projection 15b described later contacts.
  • the sensor cover member 11 is fixed to the lower surface of the lens driving device 2.
  • 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 body 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 flat and substantially rectangular tube shape with a bottom opening at the upper end, and the bottom and side surfaces on both the left and right ends thereof are notched.
  • a fulcrum protrusion 15b which is a fulcrum of the swing of the movable module 12, is formed at the approximate center of the base body 15 so as to protrude upward.
  • 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.
  • 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 fulcrum portion 19 is disposed at a position where the optical axis of the lens driving device 2 passes.
  • circular through holes 15 c are formed at the four corners of the base body 15.
  • the through-hole 15 c is for guiding a lead wire drawn out from a driving coil 23 (described later) constituting the swing drive mechanism 6 and connected to the FPC 10 toward the FPC 10.
  • the case body 16 is formed in a substantially rectangular tube shape with an upper end and a lower end opened.
  • the case body 16 of this embodiment is formed of a nonmagnetic material.
  • the case body 16 is formed of a metal material such as a stainless steel plate (for example, SUS304).
  • the plate spring 17 is formed in a substantially rectangular shape as a whole. For example, the four corners of the leaf spring 17 are fixed to the stopper member 18. Further, the center side of the leaf spring 17 is fixed to the flange portion 9 b of the cover member 9, and the leaf spring 17 holds the movable module 12.
  • the leaf spring 17 includes a fixed portion that is fixed to the stopper member 18, a holding portion that holds the movable module 12, and a spring portion that connects the fixing portion and the holding portion.
  • 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 stopper member 18 in a bent state so that an urging force for urging is generated.
  • the stopper member 18 is made of a nonmagnetic material.
  • the stopper member 18 is formed of a resin (engineering plastic) such as polyacetal (POM).
  • the stopper member 18 is fixed to the inner peripheral side of the case body 16. Specifically, the stopper member 18 is fixed to the inner peripheral surface of the case body 16 at a position where the stopper magnet 18 can come into contact with the driving magnet 21 constituting the swing driving mechanism 6. Thus, the swing range of the movable module 12 is restricted.
  • circular through holes 18a are formed at the four corners of the stopper member 18 formed in a rectangular frame shape.
  • the through hole 18 a is for guiding a lead wire drawn out from a driving coil 23 (described later) constituting the swing drive mechanism 6 and connected to the FPC 10 toward the FPC 10.
  • the through hole 15c formed in the base body 15 and the through hole 18a formed in the stopper member 18 are arranged so as to overlap in the vertical direction, and as shown in FIG.
  • the lead-out line led out from is sequentially connected to the FPC 10 through the through hole 18a of the stopper member 18 and the through hole 15c of the base body 15.
  • the rocking drive mechanism 6 includes a drive magnet 21 and a drive coil 23 disposed opposite to the drive magnet 21.
  • the swing drive mechanism 6 of this embodiment includes four drive magnets 21 and four drive coils 23.
  • the driving 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.
  • the first magnet piece 21a and the second magnet piece 21b are formed to have the same height, width, and thickness.
  • 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, and is disposed inside the case body 16.
  • the driving magnet 21 swings together with the lens driving device 2.
  • 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.
  • the cover member 9 of this embodiment is a magnet attachment member to which the drive magnet 21 is attached.
  • 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.
  • 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 thereof 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.
  • 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.
  • 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.
  • 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.
  • 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 is formed by winding a fusion wire including an insulating coating covering the periphery of the conducting wire and a fusion coating further covering the periphery of the insulating coating (that is, a core such as a bobbin). Air core coil).
  • the driving coil 23 is formed by winding a fusion wire in a substantially rectangular shape.
  • 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. Specifically, the drive coil 23 is fixed to the case body 16 so that the short direction and the vertical direction of the drive coil 23 wound in a substantially rectangular shape coincide with each other.
  • the case body 16 of this embodiment is a coil attachment member to which the drive coil 23 is attached.
  • 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.
  • 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.
  • the sensor 4 On the basis of the detection result at 4, current is supplied to the drive coil 23, and the movable module 12 swings around the fulcrum 19 to correct the shake.
  • the photographic optical device 1 when camera shake is detected based on the detection result of 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 swings (rotates) about the fulcrum 19 to correct the camera shake.
  • 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 shake correction mechanism that corrects shakes such as camera shake by moving is configured.
  • the movable module 12 with the leaf spring 17 is arranged inside the case body 16 so that the driving magnet 21 and the driving coil 23 face each other, and the base body 15 is fixed to the lower end side of the case body 16. .
  • the case body 16 to which the driving coil 23 disposed to face the driving magnet 21 is fixed is formed of a nonmagnetic material. Therefore, when assembling the photographic optical device 1 (specifically, when the movable module 12 with the leaf spring 17 is arranged inside the case body 16), the case body 16 is attracted to the driving magnet 21. Can be prevented.
  • the stopper member 18 is also formed of a nonmagnetic material. Therefore, even when the stopper member 18 that restricts the swing range of the movable module 12 is fixed to the inner peripheral surface of the case body 16, the stopper member 18 is used for driving when assembling the photographing optical device 1. Adsorption to the magnet 21 can be prevented.
  • the movable module 12 with the leaf spring 17 can be smoothly arranged inside the case body 16, and the photographing optical device 1 can be assembled smoothly and accurately. As a result, even if the photographic optical device 1 is reduced in size and thickness, the photographic optical device 1 can be easily assembled.
  • the case body 16 and the stopper member 18 can be prevented from being attracted to the drive magnet 21 when the photographing optical device 1 is assembled, so that the movable module 12 with the leaf spring 17 and / or the case body 16 can be prevented. Need not be gripped with a large force. Accordingly, it is possible to prevent an excessive load from being applied to each component constituting the photographing optical device 1, and it is possible to prevent each component from being damaged.
  • the driving force of the swing drive mechanism 6 when swinging the movable module 12 can be easily controlled. Become. That is, when the case body 16 (and / or the stopper member 18) is formed of a magnetic material, for example, the movable module 12 is tilted to the right with the fulcrum 19 as a center, and is fixed to the right side surface of the cover member 9. When the gap between the drive magnet 21 and the right side surface of the case body 16 (and / or the right end portion of the stopper member 18) becomes narrow, the right side surface (and / or the stopper) of the drive magnet 21 and the case body 16 is reduced.
  • the case body 16 is made of a metal material. That is, the case body 16 is formed of a metal material having relatively high rigidity. Therefore, it is possible to appropriately protect each component arranged inside the case body 16.
  • the cover member 9 to which the drive magnet 21 is attached is made of a magnetic material. Therefore, the magnetic path can be efficiently formed using the cover member 9.
  • the drive magnet 21 is attached to the cover member 9 and the drive coil 23 is attached to the case body 16.
  • the driving magnet 21 may be attached to the case body 16 and the driving coil 23 may be attached to the cover member 9.
  • the cover member 9 is made of a nonmagnetic material.
  • the case body 16 may be formed of a magnetic material or a nonmagnetic material.
  • the driving magnet 21 is preferably attached to the case body 16 via a yoke formed of a magnetic material.
  • the cover member 9 is a coil attachment member to which the drive coil 23 is attached.
  • the case body 16 is formed of a metal material.
  • the case body 16 may be formed of a resin (engineering plastic) such as POM.
  • the case body 16 and the stopper member 18 may be integrally formed.
  • the drive magnet 21 is constituted by two magnet pieces, the first magnet piece 21a and the second magnet piece 21b, but the drive magnet 21 is constituted by one magnet piece. May be.
  • one magnet piece is magnetized so that two magnetic poles overlapping in the optical axis direction are formed on both surfaces of the drive magnet 21.
  • the cover member 9 may be formed with a nonmagnetic material.
  • the photographing optical device 1 includes the fulcrum portion 19 that is the swing center of the movable module 12 below the movable module 12, but the photographing optical device 1 includes the fulcrum portion 19. It is not necessary. In this case, a predetermined point on the optical axis L and below the leaf spring 17 is the swing center of the movable module 12. Further, in the embodiment described above, the fulcrum portion 19 is disposed at a position where the optical axis L passes, but the fulcrum portion 19 may be disposed at a position shifted from the optical axis L.
  • the photographing optical device 1 is mounted on a portable device such as a cellular phone.
  • the imaging optical device 1 may be mounted on a drive recorder that records the driving situation of an automobile.
  • a change in the tilt of the lens driving device 2 is detected by the sensor 4 due to vibrations of the automobile during traveling or the like (that is, when a shake (vibration) of the lens driving device 2 is detected).
  • Current is supplied to the drive coil 23 based on the detection result of the sensor 4, and the movable module 12 swings around the fulcrum 19 to correct the shake.
  • the photographing optical device 1 may be mounted on another device such as a surveillance camera.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Studio Devices (AREA)
  • Adjustment Of Camera Lenses (AREA)

Abstract

An imaging optical device which can be easily assembled even if the size and thickness thereof are reduced.  An imaging optical device (1) comprises: a lens drive device (2) having mounted thereto a lens, an imaging element, and a drive mechanism for driving the lens; a support body (5) for supporting the lens drive device (2); a sensor (4) for detecting a change in the tilt of the lens drive device (2); and a shake correction mechanism for correcting a shake by rocking the lens drive device (2) on the basis of the result of the detection by the sensor (4).  The shake correction mechanism is provided with a rocking drive mechanism (6) for rocking the lens drive device (2).  The rocking drive mechanism (6) is provided with a drive magnet (21) and a drive coil (23) which are arranged so as to face each other.  The drive magnet (21) rocks together with the lens drive device (2), and the drive coil (23) is fixed to the support body (5).  A coil mounting member (16) to which the drive coil (23) is mounted consists of a non-magnetic material.

Description

撮影用光学装置Optical device for photography
　本発明は、レンズおよび撮像素子を搭載したレンズ駆動装置を揺動させて振れを補正する振れ補正機能を有する撮影用光学装置に関する。 The present invention relates to a photographic optical device having a shake correction function for correcting a shake by swinging a lens driving device on which a lens and an image sensor are mounted.
　近年、携帯電話等の携帯機器には、撮影用光学装置が搭載されている。携帯機器の場合は、撮影時に手振れが発生しやすい。そこで、撮影時の手振れを補正することが可能な光学装置が提案されている（たとえば、特許文献１参照）。 In recent years, mobile devices such as mobile phones have been equipped with optical devices for photographing. In the case of a portable 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).
　この特許文献１に記載の光学装置は、レンズや撮像素子を搭載した可動部と、光学装置の基台に固定されるとともに可動部の底面に当接するピボット軸と、基台に固定されるとともに可動部を揺動可能に支持する板バネと、可動部を揺動させるための揺動機構とを備えている。この光学装置では、揺動機構の駆動力で、可動部がピボット軸を支点に揺動して、手振れが補正されている。なお、この光学装置では、揺動機構は、駆動用コイルと駆動用磁石とによって構成されており、駆動用コイルは可動部に固定され、駆動用磁石は基台に固定されている。 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 driving coil and a driving magnet, the driving coil is fixed to the movable portion, and the driving magnet is fixed to the base.
特開２００７－３１００８４号公報JP 2007-310084 A
　近年、携帯電話等の携帯機器の市場では、携帯機器の小型化、薄型化の要求が一段と高まっており、その結果、携帯機器に搭載される撮影用光学装置の小型化、薄型化の要求も一段と高まっている。しかしながら、撮影用光学装置が小型化、薄型化すると、撮影用光学装置の組立が困難になる。 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, as the photographic optical device becomes smaller and thinner, it becomes difficult to assemble the photographic optical device.
　そこで、本発明の課題は、小型化、薄型化する場合であっても、容易に組み立てることが可能な撮影用光学装置を提供することにある。 Therefore, an object of the present invention is to provide a photographing optical device that can be easily assembled even when it is reduced in size and thickness.
　上記の課題を解決するため、本発明の撮影用光学装置は、レンズと撮像素子とレンズを駆動するレンズ駆動機構とを搭載したレンズ駆動装置と、レンズ駆動装置を支持する支持体と、レンズ駆動装置の傾き変化を検出するためのセンサと、センサでの検出結果に基づいて支持体に対してレンズ駆動装置を揺動させて振れを補正する振れ補正機構とを備え、振れ補正機構は、レンズ駆動装置を揺動させる揺動駆動機構を備え、揺動駆動機構は、互いに対向配置される駆動用コイルと駆動用磁石とを備え、駆動用コイルまたは駆動用磁石のいずれか一方は、レンズ駆動装置とともに揺動し、駆動用コイルまたは駆動用磁石のいずれか他方は、支持体に固定され、駆動用コイルが取り付けられるコイル取付部材は非磁性材料で形成されていることを特徴とする。 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 support that supports the lens driving device, and lens driving. A sensor for detecting a tilt change of the device, and a shake correction mechanism that corrects the shake by swinging the lens driving device with respect to the support based on a detection result of the sensor. A oscillating drive mechanism that oscillates the drive device is provided, and the oscillating drive mechanism includes a drive coil and a drive magnet that are arranged to face each other, and either the drive coil or the drive magnet is a lens drive. It swings with the device, and either the driving coil or the driving magnet is fixed to the support, and the coil mounting member to which the driving coil is mounted is made of a non-magnetic material. And features.
　本発明の撮影用光学装置では、駆動用磁石に対向配置される駆動用コイルが取り付けられるコイル取付部材は非磁性材料で形成されている。そのため、撮影用光学装置を組み立てる際に、コイル取付部材が駆動用磁石に吸着されるのを防止することができ、円滑にかつ精度良く、撮影用光学装置を組み立てることが可能になる。その結果、撮影用光学装置が小型化、薄型化する場合であっても、撮影用光学装置を容易に組み立てることが可能になる。 In the photographic optical device of the present invention, the coil attachment member to which the drive coil disposed opposite to the drive magnet is attached is formed of a nonmagnetic material. Therefore, when assembling the photographic optical device, the coil mounting member can be prevented from being attracted by the driving magnet, and the photographic optical device can be assembled smoothly and accurately. As a result, even when the photographic optical device is downsized and thinned, the photographic optical device can be easily assembled.
　また、撮影用光学装置の組立時に、コイル取付部材が駆動用磁石に吸着されるのを防止することができるため、コイル取付部材側および／または駆動用磁石側を大きな力で把持しなくても良い。したがって、撮影用光学装置を構成する各部品に過剰な負荷がかかるのを防止することができ、各部品の破損を防止することが可能になる。また、コイル取付部材と駆動用磁石との間の吸引力を考慮しなくても良いため、レンズ駆動装置を揺動させる際の揺動駆動機構の駆動力を制御しやすくなる。 In addition, since the coil mounting member can be prevented from being attracted to the driving magnet when assembling the photographing optical device, the coil mounting member side and / or the driving magnet side need not be gripped with a large force. good. Therefore, it is possible to prevent an excessive load from being applied to each component constituting the photographing optical apparatus, and it is possible to prevent each component from being damaged. In addition, since it is not necessary to consider the attractive force between the coil mounting member and the driving magnet, it becomes easier to control the driving force of the swing driving mechanism when swinging the lens driving device.
　本発明において、支持体は、たとえば、コイル取付部材として、撮影用光学装置の外周面を構成するケース体を備え、駆動用コイルは、ケース体の内周面に固定され、駆動用磁石は、ケース体の内部に配置されているとともにレンズ駆動装置と揺動する。この場合には、撮影用光学装置は、ケース体の内周側に固定されレンズ駆動装置の揺動範囲を規制するストッパ部材を備え、ストッパ部材は、非磁性材料で形成されていることが好ましい。このように構成すると、レンズ駆動装置の揺動範囲を規制するストッパ部材がケース体の内周側に固定されている場合であっても、撮影用光学装置を組み立てる際に、ストッパ部材が駆動用磁石に吸着されるのを防止することができる。したがって、ストッパ部材がケース体の内周側に固定されている場合であっても、撮影用光学装置を容易に組み立てることが可能になる。また、ストッパ部材がケース体の内周側に固定されている場合であっても、撮影用光学装置を構成する各部品の破損を防止することが可能になるとともに、レンズ駆動装置を揺動させる際の揺動駆動機構の駆動力を制御しやすくなる。 In the present invention, the support includes, for example, a case body that constitutes the outer peripheral surface of the imaging optical device as a coil attachment member, the driving coil is fixed to the inner peripheral surface of the case body, and the driving magnet is It is arranged inside the case body and swings with the lens driving device. In this case, the photographing optical device preferably includes a stopper member that is fixed to the inner peripheral side of the case body and restricts the swing range of the lens driving device, and the stopper member is preferably formed of a nonmagnetic material. . With this configuration, even when the stopper member that restricts the swing range of the lens driving device is fixed to the inner peripheral side of the case body, the stopper member is used for driving when assembling the photographing optical device. Adsorption to the magnet can be prevented. Therefore, even when the stopper member is fixed to the inner peripheral side of the case body, the photographing optical device can be easily assembled. Further, even when the stopper member is fixed to the inner peripheral side of the case body, it is possible to prevent damage to each component constituting the photographing optical device and to swing the lens driving device. It becomes easy to control the driving force of the swing drive mechanism at the time.
　本発明において、ケース体は、金属材料で形成されていることが好ましい。このように構成すると、比較的剛性の高い金属材料でケース体が形成されているため、ケース体の内部に配置される各部品を適切に保護することが可能になる。 In the present invention, the case body is preferably made of a metal material. If comprised in this way, since the case body is formed with the metal material with comparatively high rigidity, it becomes possible to protect appropriately each component arrange | positioned inside a case body.
　本発明において、駆動用磁石が取り付けられる磁石取付部材は、磁性材料で形成されていることが好ましい。この場合には、磁石取付部材は、レンズ駆動装置を覆う筒状のカバー部材であって、カバー部材の側面に駆動用磁石が取り付けられ、カバー部材は、レンズ駆動装置とともに支持体に対して揺動可能な可動モジュールを構成していることが好ましい。このように構成すると、磁石取付部材を用いて効率的に磁路を形成することが可能になる。 In the present invention, the magnet attachment member to which the drive magnet is attached is preferably formed of a magnetic material. In this case, the magnet attachment member is a cylindrical cover member that covers the lens driving device, and a driving magnet is attached to a side surface of the cover member, and the cover member swings with respect to the support body together with the lens driving device. It is preferable to constitute a movable module that can move. If comprised in this way, it will become possible to form a magnetic path efficiently using a magnet attachment member.
　以上のように、本発明では、撮影用光学装置が小型化、薄型化する場合であっても、撮影用光学装置を容易に組み立てることが可能になる。 As described above, according to the present invention, it is possible to easily assemble a photographing optical device even when the photographing optical device is reduced in size and thickness.
本発明の実施の形態にかかる撮影用光学装置の斜視図である。1 is a perspective view of a photographic optical device according to an embodiment of the present invention. 図１のＥ－Ｅ断面の断面図である。FIG. 2 is a cross-sectional view taken along a line EE in FIG. 1. 図１に示す撮影用光学装置の分解斜視図である。It is a disassembled perspective view of the optical device for imaging shown in FIG.
　１　撮影用光学装置
　２　レンズ駆動装置
　４　センサ
　５　支持体
　６　揺動駆動機構
　９　カバー部材（磁石取付部材）
　１６　ケース体（コイル取付部材）
　１８　ストッパ部材
　２１　駆動用磁石
　２３　駆動用コイル DESCRIPTION OF SYMBOLS 1 Optical device for imaging | photography 2 Lens drive device 4 Sensor 5 Support body 6 Oscillation drive mechanism 9 Cover member (magnet attachment member)
16 Case body (coil mounting member)
18 Stopper member 21 Driving magnet 23 Driving coil
　以下、本発明の実施の形態を図面に基づいて説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
　（撮影用光学装置の構成）
　図１は、本発明の実施の形態にかかる撮影用光学装置１の斜視図である。図２は、図１のＥ－Ｅ断面の断面図である。図３は、図１に示す撮影用光学装置１の分解斜視図である。なお、以下の説明では、図１に示すように、互いに直交する３方向のそれぞれをＸ方向、Ｙ方向およびＺ方向とする。また、図１のＸ１方向側を「右」側、Ｘ２方向側を「左」側、Ｙ１方向側を「前」側、Ｙ２方向側を「後（後ろ）」側、Ｚ１方向側を「上」側、Ｚ２方向側を「下」側とする。本形態では、Ｚ方向は、揺動していないときの撮影用光学装置１の光軸の方向（光軸方向）である。 (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. 2 is a cross-sectional view taken along the line EE of FIG. FIG. 3 is an exploded perspective view of the photographing optical device 1 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.
　本形態の撮影用光学装置１は、携帯電話等の携帯機器に搭載される小型かつ薄型のカメラであり、全体として略直方体状に形成されている。この撮影用光学装置１は、図１～図３に示すように、図示を省略するレンズおよび撮像素子を搭載したレンズ駆動装置２と、レンズ駆動装置２の傾きの変化を検出するためのセンサ４と、レンズ駆動装置２を支持する支持体５と、レンズ駆動装置２を揺動させる揺動駆動機構６とを備えている。なお、本形態では、上下方向は、レンズ駆動装置２が揺動していないときのレンズ駆動装置２の光軸Ｌの方向（光軸方向）である。 The photographing 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 to 3, the photographing optical device 1 includes a lens driving device 2 on which a lens and an image sensor (not shown) are mounted, and a sensor 4 for detecting a change in the tilt of the lens driving device 2. And a support 5 that supports the lens driving device 2 and a rocking drive mechanism 6 that rocks the lens driving device 2. In the present embodiment, the vertical direction is the direction of the optical axis L (optical axis direction) of the lens driving device 2 when the lens driving device 2 is not swinging.
　レンズ駆動装置２には、上述のように、レンズおよび撮像素子が搭載されている。具体的には、レンズ駆動装置２の上端側にレンズが搭載され、レンズ駆動装置２の下端に撮像素子が搭載されている。また、レンズ駆動装置２には、レンズを光軸方向に駆動するためのレンズ駆動機構が搭載されている。このレンズ駆動機構は、たとえば、駆動用のコイルと駆動用の磁石とによって構成されている。 The lens driving device 2 is equipped with a lens and an image sensor as described above. 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.
　レンズ駆動装置２は、全体として略直方体状に形成されている。このレンズ駆動装置２の前後および左右の側面は、下端が開口する底付きの略四角筒状に形成されたカバー部材９に覆われている。カバー部材９は、磁性材料で形成されている。また、カバー部材９は、冷間圧延鋼板等の金属材料で形成されている。上端側に配置されるカバー部材９の底部には、円形の貫通孔９ａが形成されている。また、カバー部材９の下端には、前後方向の外側および左右方向の外側に向かって広がる鍔部９ｂが形成されている。カバー部材９の前後および左右のそれぞれの側面には、揺動駆動機構６を構成する後述の駆動用磁石２１が固定されている。 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. The cover member 9 is made of a magnetic material. The cover member 9 is made of a metal material such as a cold rolled steel plate. 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. On the front and rear and left and right side surfaces of the cover member 9, a driving magnet 21, which will be described later, constituting the swing drive mechanism 6 is fixed.
　センサ４は、レンズ駆動装置２の傾きの変化を検出するためのジャイロスコープである。すなわち、センサ４は、レンズ駆動装置２の角速度を検出するための角速度センサである。このセンサ４は、レンズ駆動装置２の下側に配置されている。このセンサ４には、フレキシブルプリント基板（ＦＰＣ）１０が接続されている。このＦＰＣ１０は、レンズ駆動装置２に搭載されている撮像素子および揺動駆動機構６を構成する後述の駆動用コイル２３の端部にも接続されている。ＦＰＣ１０は、撮影用光学装置１の下端側で引き回されて、たとえば、撮影用光学装置１の右側面から引き出されている。 The sensor 4 is a gyroscope for detecting a change in the tilt of the lens driving device 2. That is, the sensor 4 is an angular velocity sensor for detecting the angular velocity of the lens driving device 2. The sensor 4 is disposed on the lower side of 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 pickup element mounted on the lens driving device 2 and an end portion of a driving coil 23 described later that constitutes the swing driving mechanism 6. The FPC 10 is drawn around on the lower end side of the photographing optical device 1 and pulled out from, for example, the right side surface of the photographing optical device 1.
　また、センサ４は、上端が開口する底付きで扁平な略四角筒状に形成されたセンサカバー部材１１の内部に配置されている。下端側に配置されるセンサカバー部材１１の底部は、平面状に形成されており、その中心部は、後述の支点突起１５ｂが当接する当接面１１ａとなっている。このセンサカバー部材１１は、レンズ駆動装置２の下面に固定されている。 Further, the sensor 4 is arranged inside a sensor cover member 11 formed in a flat and substantially rectangular tube shape with a bottom having an upper end opened. The bottom part of the sensor cover member 11 arranged on the lower end side is formed in a flat shape, and the center part thereof is a contact surface 11a on which a fulcrum projection 15b described later contacts. The sensor cover member 11 is fixed to the lower surface of the lens driving device 2.
　本形態では、レンズ駆動装置２とセンサ４とカバー部材９とセンサカバー部材１１とが、支持体５に揺動可能に支持されている。すなわち、レンズ駆動装置２、センサ４、カバー部材９およびセンサカバー部材１１によって、支持体５に対して揺動可能な可動モジュール１２が構成されている。 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.
　支持体５は、撮影用光学装置１の下面を構成するベース体１５と、撮影用光学装置１の前後および左右の外周面を構成するケース体１６とを備えている。ケース体１６には、可動モジュール１２の揺動範囲を規制するためのストッパ部材１８が固定されている。また、ストッパ部材１８には、可動モジュール１２を揺動可能に支持する板バネ１７が固定されている。 The support body 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.
　ベース体１５は、図３に示すように、上端が開口する底付きで扁平な略四角筒状に形成されるとともに、その左右両端側の底面および側面は、切り欠かれている。このベース体１５の略中心には、可動モジュール１２の揺動の支点となる支点突起１５ｂが上側に向かって突出するように形成されている。すなわち、本形態では、可動モジュール１２の下側に可動モジュール１２の揺動の支点が配置されている。この支点突起１５ｂは、たとえば、半球面状に形成されており、センサカバー部材１１の当接面１１ａに当接している。本形態では、支点突起１５ｂと当接面１１ａとによって、レンズ駆動装置２の揺動中心となる支点部１９が構成されている。この支点部１９は、レンズ駆動装置２の光軸が通過する位置に配置されている。 As shown in FIG. 3, the base body 15 is formed in a flat and substantially rectangular tube shape with a bottom opening at the upper end, and the bottom and side surfaces on both the left and right ends thereof are notched. A fulcrum protrusion 15b, which is a fulcrum of the swing of the movable module 12, is formed at the approximate center of the base body 15 so as to protrude upward. 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 fulcrum portion 19 is disposed at a position where the optical axis of the lens driving device 2 passes.
　また、図３に示すように、ベース体１５の四隅には、円形の貫通孔１５ｃが形成されている。この貫通孔１５ｃは、揺動駆動機構６を構成する後述の駆動用コイル２３から引き出されＦＰＣ１０に接続される引出線をＦＰＣ１０に向かって案内するためのものである。 Further, as shown in FIG. 3, circular through holes 15 c are formed at the four corners of the base body 15. The through-hole 15 c is for guiding a lead wire drawn out from a driving coil 23 (described later) constituting the swing drive mechanism 6 and connected to the FPC 10 toward the FPC 10.
　ケース体１６は、上端および下端が開口する略四角筒状に形成されている。本形態のケース体１６は、非磁性材料で形成されている。また、ケース体１６は、ステンレス鋼板（たとえば、ＳＵＳ３０４）等の金属材料で形成されている。 The case body 16 is formed in a substantially rectangular tube shape with an upper end and a lower end opened. The case body 16 of this embodiment is formed of a nonmagnetic material. The case body 16 is formed of a metal material such as a stainless steel plate (for example, SUS304).
　板バネ１７は、全体として略矩形状に形成されている。板バネ１７の四隅は、たとえば、ストッパ部材１８に固定されている。また、板バネ１７の中心側は、カバー部材９の鍔部９ｂに固定されており、板バネ１７は、可動モジュール１２を保持している。この板バネ１７は、ストッパ部材１８に固定される固定部と、可動モジュール１２を保持する保持部と、固定部と保持部とを繋ぐバネ部とを備えている。 The plate spring 17 is formed in a substantially rectangular shape as a whole. For example, the four corners of the leaf spring 17 are fixed to the stopper member 18. Further, the center side of the leaf spring 17 is fixed to the flange portion 9 b of the cover member 9, and the leaf spring 17 holds the movable module 12. The leaf spring 17 includes a fixed portion that is fixed to the stopper member 18, a holding portion that holds the movable module 12, and a spring portion that connects the fixing portion and the holding portion.
　なお、板バネ１７は、センサカバー部材１１の当接面１１ａとベース体１５の支点突起１５ｂとを確実に当接させるための与圧が発生するように（すなわち、可動モジュール１２を下方向へ付勢する付勢力が発生するように）、撓んだ状態でストッパ部材１８に固定されている。 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 stopper member 18 in a bent state so that an urging force for urging is generated.
　ストッパ部材１８は、非磁性材料で形成されている。たとえば、ストッパ部材１８は、ポリアセタール（ＰＯＭ）等の樹脂（エンジニアリングプラスチック）で形成されている。このストッパ部材１８は、ケース体１６の内周側に固定されている。具体的には、揺動駆動機構６を構成する駆動用磁石２１に当接可能な位置で、ストッパ部材１８がケース体１６の内周面に固定されており、ストッパ部材１８と駆動用磁石２１とによって、可動モジュール１２の揺動範囲が規制されている。 The stopper member 18 is made of a nonmagnetic material. For example, the stopper member 18 is formed of a resin (engineering plastic) such as polyacetal (POM). The stopper member 18 is fixed to the inner peripheral side of the case body 16. Specifically, the stopper member 18 is fixed to the inner peripheral surface of the case body 16 at a position where the stopper magnet 18 can come into contact with the driving magnet 21 constituting the swing driving mechanism 6. Thus, the swing range of the movable module 12 is restricted.
　また、図３に示すように、矩形の枠状に形成されたストッパ部材１８の四隅には、円形の貫通孔１８ａが形成されている。この貫通孔１８ａは、揺動駆動機構６を構成する後述の駆動用コイル２３から引き出されＦＰＣ１０に接続される引出線をＦＰＣ１０に向かって案内するためのものである。本形態では、ベース体１５に形成される貫通孔１５ｃとストッパ部材１８に形成される貫通孔１８ａとは、上下方向で重なるように配置されており、図２に示すように、駆動用コイル２３から引き出された引出線は、ストッパ部材１８の貫通孔１８ａとベース体１５の貫通孔１５ｃとを順次、通過して、ＦＰＣ１０に接続される。 Further, as shown in FIG. 3, circular through holes 18a are formed at the four corners of the stopper member 18 formed in a rectangular frame shape. The through hole 18 a is for guiding a lead wire drawn out from a driving coil 23 (described later) constituting the swing drive mechanism 6 and connected to the FPC 10 toward the FPC 10. In this embodiment, the through hole 15c formed in the base body 15 and the through hole 18a formed in the stopper member 18 are arranged so as to overlap in the vertical direction, and as shown in FIG. The lead-out line led out from is sequentially connected to the FPC 10 through the through hole 18a of the stopper member 18 and the through hole 15c of the base body 15.
　揺動駆動機構６は、駆動用磁石２１と、駆動用磁石２１に対向配置される駆動用コイル２３とを備えている。本形態の揺動駆動機構６は、４個の駆動用磁石２１と４個の駆動用コイル２３とを備えている。 The rocking drive mechanism 6 includes a drive magnet 21 and a drive coil 23 disposed opposite to the drive magnet 21. The swing drive mechanism 6 of this embodiment includes four drive magnets 21 and four drive coils 23.
　駆動用磁石２１は、略矩形の板状に形成されている。また、駆動用磁石２１は、第１磁石片２１ａと第２磁石片２１ｂとの２個の磁石片によって構成されている。具体的には、第１磁石片２１ａの下面と第２磁石片２１ｂの上面とが当接した状態で、第１磁石片２１ａと第２磁石片２１ｂとが接着固定されて駆動用磁石２１が形成されている。第１磁石片２１ａと第２磁石片２１ｂとは、高さ、幅および厚さが同じになるように形成されている。 The driving 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. The first magnet piece 21a and the second magnet piece 21b are formed to have the same height, width, and thickness.
　駆動用磁石２１は、カバー部材９の前後の側面および左右の側面のそれぞれに１個ずつ固定されており、ケース体１６の内部に配置されている。この駆動用磁石２１は、レンズ駆動装置２とともに揺動する。上述のように、カバー部材９は、磁性材料で形成されており、カバー部材９は、駆動用磁石２１のバックヨークの機能を果たしている。本形態のカバー部材９は、駆動用磁石２１が取り付けられる磁石取付部材である。 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, 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. The cover member 9 of this embodiment is a magnet attachment member to which the drive magnet 21 is attached.
　本形態では、カバー部材９の左右の側面に固定される駆動用磁石２１は、駆動用磁石２１の右面に形成される磁極と左面に形成される磁極とが異なるように着磁されている。また、カバー部材９の左右の側面に固定される駆動用磁石２１は、左右方向における第１磁石片２１ａの外側面に形成される磁極と第２磁石片２１ｂの外側面に形成される磁極とが異なるように（すなわち、左右方向における第１磁石片２１ａの内側面に形成される磁極と第２磁石片２１ｂの内側面に形成される磁極とが異なるように）着磁されている。 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.
　同様に、カバー部材９の前後の側面に固定される駆動用磁石２１は、駆動用磁石２１の前面に形成される磁極と後面に形成される磁極とが異なるように着磁されている。また、カバー部材９の前後の側面に固定される駆動用磁石２１は、前後方向における第１磁石片２１ａの外側面に形成される磁極と第２磁石片２１ｂの外側面に形成される磁極とが異なるように着磁されている。 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 thereof 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.
　たとえば、カバー部材９の右側面に固定される駆動用磁石２１の第１磁石片２１ａの右側面はＳ極、左側面はＮ極に着磁され、この駆動用磁石２１の第２磁石片２１ｂの右側面はＮ極、左側面はＳ極に着磁されている。同様に、カバー部材９の左側面に固定される駆動用磁石２１の第１磁石片２１ａの左側面はＳ極、右側面はＮ極に着磁され、この駆動用磁石２１の第２磁石片２１ｂの左側面はＮ極、右側面はＳ極に着磁されている。 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.
　また、たとえば、カバー部材９の後側面に固定される駆動用磁石２１の第１磁石片２１ａの後側面はＮ極、前側面はＳ極に着磁され、この駆動用磁石２１の第２磁石片２１ｂの後側面はＳ極、前側面はＮ極に着磁されている。同様に、カバー部材９の前側面に固定される駆動用磁石２１の第１磁石片２１ａの前側面はＮ極、後側面はＳ極に着磁され、この駆動用磁石２１の第２磁石片２１ｂの前側面はＳ極、後側面はＮ極に着磁されている。 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.
　駆動用コイル２３は、導線の周りを被覆する絶縁被膜と、絶縁被膜の周りをさらに被覆する融着被膜とを備える融着線が空芯状に巻回された（すなわち、ボビン等の巻芯を備えていない）空芯コイルである。この駆動用コイル２３は、融着線が略長方形状に巻回されて形成されている。また、駆動用コイル２３は、絶縁性のフィルムを介してケース体１６の前後の側面および左右の側面のそれぞれに１個ずつ固定されている。具体的には、略長方形状に巻回された駆動用コイル２３の短手方向と上下方向とが一致するように、駆動用コイル２３がケース体１６に固定されている。本形態のケース体１６は、駆動用コイル２３が取り付けられるコイル取付部材である。 The drive coil 23 is formed by winding a fusion wire including an insulating coating covering the periphery of the conducting wire and a fusion coating further covering the periphery of the insulating coating (that is, a core such as a bobbin). Air core coil). The driving coil 23 is formed by winding a fusion wire in a substantially rectangular shape. 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. Specifically, the drive coil 23 is fixed to the case body 16 so that the short direction and the vertical direction of the drive coil 23 wound in a substantially rectangular shape coincide with each other. The case body 16 of this embodiment is a coil attachment member to which the drive coil 23 is attached.
　図２に示すように、駆動用磁石２１と駆動用コイル２３とは所定の隙間をあけた状態で対向配置されている。具体的には、支点部１９を支点として可動モジュール１２が揺動しても、駆動用磁石２１と駆動用コイル２３とが接触しないように、駆動用磁石２１と駆動用コイル２３とが所定の隙間をあけた状態で対向配置されている。 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.
　また、本形態では、図２に示すように、上下方向における駆動用コイル２３の中心位置が第１磁石片２１ａと第２磁石片２１ｂとの当接面よりも上側に配置されるように、駆動用磁石２１と駆動用コイル２３とが対向配置されている。 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.
　以上のように構成された撮影用光学装置１では、センサ４でレンズ駆動装置２の傾きの変化が検出されると（すなわち、レンズ駆動装置２の振れ（振動）が検出されると）、センサ４での検出結果に基づいて、駆動用コイル２３に電流が供給され、可動モジュール１２が支点部１９を中心に揺動して、振れが補正される。具体的には、撮影用光学装置１では、センサ４での検出結果に基づいて手振れが検出されると、センサ４での検出結果に基づいて、駆動用コイル２３に電流が供給され、可動モジュール１２が支点部１９を中心に揺動（回動）して、手振れが補正される。なお、本形態では、当接面１１ａと支点突起１５ｂとからなる支点部１９と、揺動駆動機構６と、板バネ１７とによって、センサ４での検出結果に基づいてレンズ駆動装置２を揺動させて手振れ等の振れを補正する振れ補正機構が構成されている。 In the photographic optical device 1 configured as described above, when a change in the tilt of the lens driving device 2 is detected by the sensor 4 (that is, when a shake (vibration) of the lens driving device 2 is detected), the sensor On the basis of the detection result at 4, current is supplied to the drive coil 23, and the movable module 12 swings around the fulcrum 19 to correct the shake. Specifically, in the photographic optical device 1, when camera shake is detected based on the detection result of 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 swings (rotates) about the fulcrum 19 to correct the camera shake. 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 shake correction mechanism that corrects shakes such as camera shake by moving is configured.
　また、以上のように構成された撮影用光学装置１は、以下のように組み立てられる。すなわち、図３に示すように、まず、ケース体１６の内周面に駆動用コイル２３およびストッパ部材１８を固定する。また、板バネ１７付きの可動モジュール１２を組み立てる。すなわち、センサ４を内部に配置したセンサカバー部材１１をレンズ駆動装置２に固定するとともに、レンズ駆動装置２をカバー部材９の内部に取り付けた後に、カバー部材９に駆動用磁石２１および板バネ１７を固定する。 Also, the photographing optical device 1 configured as described above is assembled as follows. That is, as shown in FIG. 3, first, the driving coil 23 and the stopper member 18 are fixed to the inner peripheral surface of the case body 16. Further, the movable module 12 with the leaf spring 17 is assembled. That is, the sensor cover member 11 having the sensor 4 disposed therein is fixed to the lens driving device 2, and after the lens driving device 2 is attached to the inside of the cover member 9, the driving magnet 21 and the leaf spring 17 are attached to the cover member 9. To fix.
　その後、駆動用磁石２１と駆動用コイル２３とが対向するように、ケース体１６の内部に、板バネ１７付きの可動モジュール１２を配置し、ケース体１６の下端側にベース体１５を固定する。 Thereafter, the movable module 12 with the leaf spring 17 is arranged inside the case body 16 so that the driving magnet 21 and the driving coil 23 face each other, and the base body 15 is fixed to the lower end side of the case body 16. .
　（本形態の主な効果）
　以上説明したように、本形態では、駆動用磁石２１に対向配置される駆動用コイル２３が固定されるケース体１６は、非磁性材料で形成されている。そのため、撮影用光学装置１を組み立てる際に（具体的には、ケース体１６の内部に板バネ１７付きの可動モジュール１２を配置する際に）、ケース体１６が駆動用磁石２１に吸着されるのを防止することができる。 (Main effects of this form)
As described above, in the present embodiment, the case body 16 to which the driving coil 23 disposed to face the driving magnet 21 is fixed is formed of a nonmagnetic material. Therefore, when assembling the photographic optical device 1 (specifically, when the movable module 12 with the leaf spring 17 is arranged inside the case body 16), the case body 16 is attracted to the driving magnet 21. Can be prevented.
　特に本形態では、ストッパ部材１８も非磁性材料で形成されている。そのため、可動モジュール１２の揺動範囲を規制するストッパ部材１８がケース体１６の内周面に固定されている場合であっても、撮影用光学装置１を組み立てる際に、ストッパ部材１８が駆動用磁石２１に吸着されるのを防止することができる。 Particularly in this embodiment, the stopper member 18 is also formed of a nonmagnetic material. Therefore, even when the stopper member 18 that restricts the swing range of the movable module 12 is fixed to the inner peripheral surface of the case body 16, the stopper member 18 is used for driving when assembling the photographing optical device 1. Adsorption to the magnet 21 can be prevented.
　したがって、本形態では、板バネ１７付きの可動モジュール１２をケース体１６の内部に円滑に配置することができ、円滑にかつ精度良く、撮影用光学装置１を組み立てることが可能になる。その結果、撮影用光学装置１が小型化、薄型化する場合であっても、撮影用光学装置１を容易に組み立てることが可能になる。 Therefore, in this embodiment, the movable module 12 with the leaf spring 17 can be smoothly arranged inside the case body 16, and the photographing optical device 1 can be assembled smoothly and accurately. As a result, even if the photographic optical device 1 is reduced in size and thickness, the photographic optical device 1 can be easily assembled.
　また、撮影用光学装置１の組立時に、ケース体１６およびストッパ部材１８が駆動用磁石２１に吸着されるのを防止することができるため、板バネ１７付きの可動モジュール１２および／またはケース体１６を大きな力で把持しなくても良い。したがって、撮影用光学装置１を構成する各部品に過剰な負荷がかかるのを防止することができ、各部品の破損を防止することができる。 In addition, the case body 16 and the stopper member 18 can be prevented from being attracted to the drive magnet 21 when the photographing optical device 1 is assembled, so that the movable module 12 with the leaf spring 17 and / or the case body 16 can be prevented. Need not be gripped with a large force. Accordingly, it is possible to prevent an excessive load from being applied to each component constituting the photographing optical device 1, and it is possible to prevent each component from being damaged.
　また、ケース体１６およびストッパ部材１８と駆動用磁石２１との間の吸引力を考慮しなくても良いため、可動モジュール１２を揺動させる際の揺動駆動機構６の駆動力を制御しやすくなる。すなわち、ケース体１６（および／またはストッパ部材１８）が磁性材料で形成されている場合、たとえば、可動モジュール１２が支点部１９を中心として右方向へ傾いて、カバー部材９の右側面に固定される駆動用磁石２１とケース体１６の右側面（および／またはストッパ部材１８の右端側部分）との間の隙間が狭くなると、この駆動用磁石２１とケース体１６の右側面（および／またはストッパ部材１８の右端側部分）との間の吸引力が増加して、可動モジュール１２を右方向へ傾ける力が増加するため、揺動駆動機構６の駆動力の制御が複雑になるが、本形態では、可動モジュール１２が揺動しても、駆動用磁石２１とケース体１６の側面（および／またはストッパ部材１８）との間の吸引力が増加することがない。したがって、本形態では、可動モジュール１２を揺動させる際の揺動駆動機構６の駆動力を制御しやすくなる。 Further, since it is not necessary to consider the attractive force between the case body 16 and the stopper member 18 and the driving magnet 21, the driving force of the swing drive mechanism 6 when swinging the movable module 12 can be easily controlled. Become. That is, when the case body 16 (and / or the stopper member 18) is formed of a magnetic material, for example, the movable module 12 is tilted to the right with the fulcrum 19 as a center, and is fixed to the right side surface of the cover member 9. When the gap between the drive magnet 21 and the right side surface of the case body 16 (and / or the right end portion of the stopper member 18) becomes narrow, the right side surface (and / or the stopper) of the drive magnet 21 and the case body 16 is reduced. Since the suction force with respect to the right end portion of the member 18 increases and the force for tilting the movable module 12 to the right increases, the control of the drive force of the swing drive mechanism 6 becomes complicated. Then, even if the movable module 12 swings, the attractive force between the driving magnet 21 and the side surface of the case body 16 (and / or the stopper member 18) does not increase. Therefore, in this embodiment, it becomes easy to control the driving force of the swing drive mechanism 6 when swinging the movable module 12.
　また、本形態では、可動モジュール１２が揺動しても、駆動用磁石２１とケース体１６の側面（および／またはストッパ部材１８）との間の吸引力が急激に増加することがないため、板バネ１７の損傷を防止することができる。 In this embodiment, even if the movable module 12 swings, the attractive force between the driving magnet 21 and the side surface of the case body 16 (and / or the stopper member 18) does not increase rapidly. Damage to the leaf spring 17 can be prevented.
　本形態では、ケース体１６は、金属材料で形成されている。すなわち、ケース体１６は、比較的剛性の高い金属材料で形成されている。そのため、ケース体１６の内部に配置される各部品を適切に保護することが可能になる。 In this embodiment, the case body 16 is made of a metal material. That is, the case body 16 is formed of a metal material having relatively high rigidity. Therefore, it is possible to appropriately protect each component arranged inside the case body 16.
　本形態では、駆動用磁石２１が取り付けられるカバー部材９は、磁性材料で形成されている。そのため、カバー部材９を用いて効率的に磁路を形成することができる。 In this embodiment, the cover member 9 to which the drive magnet 21 is attached is made of a magnetic material. Therefore, the magnetic path can be efficiently formed using the cover member 9.
　（他の実施の形態）
　上述した形態は、本発明の好適な形態の一例ではあるが、これに限定されるものではなく本発明の要旨を変更しない範囲において種々変形実施が可能である。 (Other embodiments)
The above-described embodiment is an example of a preferred embodiment of the present invention, but is not limited to this, and various modifications can be made without departing from the scope of the present invention.
　上述した形態では、駆動用磁石２１がカバー部材９に取り付けられ、駆動用コイル２３がケース体１６に取り付けられている。この他にもたとえば、駆動用磁石２１がケース体１６に取り付けられ、駆動用コイル２３がカバー部材９に取り付けられても良い。この場合には、カバー部材９は非磁性材料で形成される。また、この場合には、ケース体１６は磁性材料で形成されても良いし、非磁性材料で形成されても良い。ケース体１６が非磁性材料で形成される場合には、磁性材料で形成されるヨークを介して駆動用磁石２１がケース体１６に取り付けられることが好ましい。なお、この場合には、カバー部材９は、駆動用コイル２３が取り付けられるコイル取付部材である。 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 and the driving coil 23 may be attached to the cover member 9. In this case, the cover member 9 is made of a nonmagnetic material. In this case, the case body 16 may be formed of a magnetic material or a nonmagnetic material. When the case body 16 is formed of a non-magnetic material, the driving magnet 21 is preferably attached to the case body 16 via a yoke formed of a magnetic material. In this case, the cover member 9 is a coil attachment member to which the drive coil 23 is attached.
　上述した形態では、ケース体１６は、金属材料で形成されている。この他にもたとえば、ケース体１６は、ＰＯＭ等の樹脂（エンジニアリングプラスチック）で形成されても良い。この場合には、ケース体１６とストッパ部材１８とが一体成型されても良い。 In the embodiment described above, the case body 16 is formed of a metal material. In addition, for example, the case body 16 may be formed of a resin (engineering plastic) such as POM. In this case, the case body 16 and the stopper member 18 may be integrally formed.
　上述した形態では、駆動用磁石２１は、第１磁石片２１ａと第２磁石片２１ｂとの２個の磁石片によって構成されているが、駆動用磁石２１は、１個の磁石片によって構成されても良い。この場合には、駆動用磁石２１の両面のそれぞれにおいて、光軸方向で重なる２極の磁極が形成されるように、１個の磁石片が着磁される。また、上述した形態では、カバー部材９は磁性材料で形成されているが、カバー部材９は非磁性材料で形成されても良い。 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, but the drive magnet 21 is constituted by one magnet piece. May be. In this case, one magnet piece is magnetized so that two magnetic poles overlapping in the optical axis direction are formed on both surfaces of the drive magnet 21. Moreover, in the form mentioned above, although the cover member 9 is formed with the magnetic material, the cover member 9 may be formed with a nonmagnetic material.
　上述した形態では、撮影用光学装置１は、可動モジュール１２の下側に可動モジュール１２の揺動中心となる支点部１９を備えているが、撮影用光学装置１は、支点部１９を備えていなくても良い。この場合には、光軸Ｌ上であって、かつ、板バネ１７よりも下側の所定の点が可動モジュール１２の揺動中心となる。また、上述した形態では、支点部１９は、光軸Ｌが通過する位置に配置されているが、支点部１９は、光軸Ｌからずれた位置に配置されても良い。 In the embodiment described above, the photographing optical device 1 includes the fulcrum portion 19 that is the swing center of the movable module 12 below the movable module 12, but the photographing optical device 1 includes the fulcrum portion 19. It is not necessary. In this case, a predetermined point on the optical axis L and below the leaf spring 17 is the swing center of the movable module 12. Further, in the embodiment described above, the fulcrum portion 19 is disposed at a position where the optical axis L passes, but the fulcrum portion 19 may be disposed at a position shifted from the optical axis L.
　上述した形態では、撮影用光学装置１は、携帯電話等の携帯機器に搭載されている。この他にもたとえば、自動車の運転状況を記録するドライブレコーダに、撮影用光学装置１が搭載されても良い。この場合には、走行時の自動車の振動等に起因して、センサ４でレンズ駆動装置２の傾きの変化が検出されると（すなわち、レンズ駆動装置２の振れ（振動）が検出されると）、センサ４での検出結果に基づいて、駆動用コイル２３に電流が供給され、可動モジュール１２が支点部１９を中心に揺動して、振れが補正される。また、撮影用光学装置１は、監視カメラ等のその他の装置に搭載されても良い。 In the above-described embodiment, the photographing optical device 1 is mounted on a portable device such as a cellular phone. In addition to this, for example, the imaging optical device 1 may be mounted on a drive recorder that records the driving situation of an automobile. In this case, when a change in the tilt of the lens driving device 2 is detected by the sensor 4 due to vibrations of the automobile during traveling or the like (that is, when a shake (vibration) of the lens driving device 2 is detected). ), Current is supplied to the drive coil 23 based on the detection result of the sensor 4, and the movable module 12 swings around the fulcrum 19 to correct the shake. Further, the photographing optical device 1 may be mounted on another device such as a surveillance camera.

Claims (6)

  1. 　レンズと撮像素子と前記レンズを駆動するレンズ駆動機構とを搭載したレンズ駆動装置と、前記レンズ駆動装置を支持する支持体と、前記レンズ駆動装置の傾きの変化を検出するためのセンサと、前記センサでの検出結果に基づいて前記支持体に対して前記レンズ駆動装置を揺動させて振れを補正する振れ補正機構とを備え、
    　前記振れ補正機構は、前記レンズ駆動装置を揺動させる揺動駆動機構を備え、
    　前記揺動駆動機構は、互いに対向配置される駆動用コイルと駆動用磁石とを備え、
    　前記駆動用コイルまたは前記駆動用磁石のいずれか一方は、前記レンズ駆動装置とともに揺動し、前記駆動用コイルまたは前記駆動用磁石のいずれか他方は、前記支持体に固定され、
    　前記駆動用コイルが取り付けられるコイル取付部材は非磁性材料で形成されていることを特徴とする撮影用光学装置。     A lens driving device equipped with a lens, an image sensor, and a lens driving mechanism for driving the lens; a support for supporting the lens driving device; a sensor for detecting a change in tilt of the lens driving device; A shake correction mechanism for correcting shake by swinging the lens driving device with respect to the support based on a detection result of a sensor;
    The 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,
    Either the driving coil or the driving magnet swings together with the lens driving device, and the other of the driving coil or the driving magnet is fixed to the support,
    An optical apparatus for photographing, wherein a coil attachment member to which the drive coil is attached is made of a nonmagnetic material.
  2. 　前記支持体は、前記コイル取付部材として、前記撮影用光学装置の外周面を構成するケース体を備え、
    　前記駆動用コイルは、前記ケース体の内周面に固定され、
    　前記駆動用磁石は、前記ケース体の内部に配置されているとともに前記レンズ駆動装置と揺動することを特徴とする請求項１記載の撮影用光学装置。     The support includes a case body that constitutes an outer peripheral surface of the photographing optical device as the coil attachment member,
    The driving coil is fixed to the inner peripheral surface of the case body,
    2. The photographing optical device according to claim 1, wherein the driving magnet is disposed inside the case body and swings with the lens driving device.
  3. 　前記ケース体の内周側に固定され前記レンズ駆動装置の揺動範囲を規制するストッパ部材を備え、
    　前記ストッパ部材は、非磁性材料で形成されていることを特徴とする請求項２記載の撮影用光学装置。     A stopper member which is fixed to the inner peripheral side of the case body and regulates the swing range of the lens driving device;
    The photographing optical device according to claim 2, wherein the stopper member is made of a nonmagnetic material.
  4. 　前記ケース体は、金属材料で形成されていることを特徴とする請求項２記載の撮影用光学装置。 3. The photographing optical device according to claim 2, wherein the case body is made of a metal material.
  5. 　前記駆動用磁石が取り付けられる磁石取付部材は、磁性材料で形成されていることを特徴とする請求項１から４いずれかに記載の撮影用光学装置。 5. The photographing optical apparatus according to claim 1, wherein the magnet attachment member to which the drive magnet is attached is made of a magnetic material.
  6. 　前記磁石取付部材は、前記レンズ駆動装置を覆う筒状のカバー部材であって、当該カバー部材の側面に前記駆動用磁石が取り付けられ、
    　前記カバー部材は、前記レンズ駆動装置とともに前記支持体に対して揺動可能な可動モジュールを構成していることを特徴とする請求項５に記載の撮影用光学装置。     The magnet attachment member is a cylindrical cover member that covers the lens driving device, and the driving magnet is attached to a side surface of the cover member.
    The photographing optical device according to claim 5, wherein the cover member constitutes a movable module that can swing with respect to the support body together with the lens driving device.
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