JP2012150427A - Optical image blur correcting device and image pickup device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image blur correcting mechanism having a favorable image blur correcting property, having a high silence property, and performing a high-speed and highly stable operation, and to provide a locking mechanism thereof and an image pickup apparatus using the image blur correcting mechanism and the locking mechanism.SOLUTION: The optical image blur correcting device comprises a base member 1 having a hole, a lens holding member 2 having a protruding shaft, and a locking member 11 having a lock groove. By using the configuration, the protruding shaft of the lens holding member 2 is captured by the hole of the base member 1 and the lock groove of the locking member 11 to block the movement of the lens holding member 2.

Description

  The present invention relates to an image pickup apparatus such as a single-lens reflex camera, and more particularly to an image pickup apparatus including an optical image shake correction device that shifts a lens or the like to optically correct image shake.

  Some recent imaging apparatuses, particularly single-lens reflex cameras, compact cameras, and video cameras, are equipped with a mechanism for correcting image blur caused by camera shake of a photographer.

  Such an image blur correction mechanism includes an electronic image blur correction mechanism mainly used for a compact digital camera and an optical image blur correction mechanism mainly used for a single-lens reflex camera.

  The electronic image blur correction mechanism is a mechanism that generates an image with less image blur by shifting an output region of an image acquired by a digital camera in accordance with the image blur. There is also a mechanism for electronically synthesizing a plurality of images as an electronic image blur correction mechanism. These elements are often mounted on a compact digital camera or a mobile phone equipped with a camera function, which is particularly required to have a space-saving mechanism because there are very few mechanically added elements. On the other hand, the electronic image blur correction mechanism has a problem that the processing itself takes time, or the sense of resolution is lost in the process of generating an image with less image blur from a plurality of images. Therefore, development of an image processing process that does not lose a sense of resolution and development of a higher-speed image processing chip have been performed.

  The optical image shake correction mechanism detects a lens and a lens group that decenters an optical axis in order to correct image shake (hereinafter referred to as a correction lens), an actuator that moves the correction lens, and a current position of the correction lens. The image sensor includes a position sensor, a vibration sensor that detects camera shake of the photographer applied to the imaging apparatus, and a CPU that controls the movement of the correction lens so as to cancel image shake caused by camera shake of the photographer (hereinafter referred to as image shake correction CPU). Some digital cameras move an image sensor instead of a lens.

  Here, the mechanism of the optical image shake correction apparatus will be described in detail.

  The correction lens is at least one lens of a lens optical system disposed in the lens barrel, and is held movably in a plane orthogonal to the optical axis. By moving the correction lens, the imaging position on the image plane is kept constant, and an image with little image blur can be taken.

  As the actuator for moving the correction lens, an actuator having sufficient thrust and responsiveness is used in order to move the correction lens with high speed and high accuracy and to keep it at a fixed position. A voice coil motor (hereinafter referred to as “VCM”) is usually used. A coil is provided on the lens frame holding the correction lens or on the unit side of the image blur correction mechanism, and a set of permanent magnets provided at corresponding positions. At least two sets are arranged outside the correction lens, and the correction lens is moved.

  A position sensor that detects the current position of the correction lens is a Hall element that detects the magnetic flux density of a voice coil motor (VCM) used for the actuator, or a lens frame that holds the correction lens and is provided on the unit side of the image blur correction mechanism. For example, a light position sensor (PSD) that captures light emitted from an infrared light emitting diode (IR-LED) provided in the light emitting diode is used.

  An angular velocity sensor (gyro sensor) or an acceleration sensor is used as a vibration sensor for detecting a camera shake of a photographer applied to the imaging apparatus. When either sensor is used, usually two are used as one set, and vibrations in the pitch direction and yaw direction or left and right shift direction and up and down shift direction are detected, and a camera shake correction CPU is used as camera shake information applied to the imaging device. Output to.

  Further, the vibration sensor is selectively used depending on the type of the imaging device. This is because the vibration that can be detected by the vibration sensor detects shift shake in the direction parallel to the imaging surface while the acceleration sensor detects angular shake in the direction in which the imaging surface tilts, This is due to the difference in camera shake that occurs depending on the characteristics of the imaging apparatus.

  In general, an acceleration sensor is used for a small imaging device such as a mobile phone. On the other hand, an angular velocity sensor is generally used for a large imaging device such as a single-lens reflex camera or a video camera. In the early days of the image blur correction mechanism, there were some equipped with both sensors, but this is not common at present.

  The CPU that controls the movement of the correction lens calculates the target value of the correction lens necessary to prevent image blur from the output of the vibration sensor, specifies the current position of the correction lens from the output of the position sensor, and corrects from these differences Determine the amount of lens movement. The actuator is controlled to move the correction lens based on the determined movement amount, and the correction lens is moved.

  The optical image blur correction apparatus repeats such an operation at high speed to perform image blur correction.

  By the way, a mechanism for holding the lens frame mechanically at the center when the optical image blur correction device does not perform image blur correction, a so-called lock mechanism is known.

  A lens barrel equipped with an optical image shake correction device locks the movement of the correction lens by operating a lock mechanism, and when the photographer does not want to perform image shake correction or operates the optical image shake correction device. Even when the camera is attached to a camera that cannot be used, it can be used in the same manner as a normal lens barrel. In addition, since optical image blur correction can be performed from a state in which the correction lens is held at the optical center in advance, it is possible to reduce problems such as image shaking at the same time as the start of image blur correction.

  Here, a conventional optical image blur correction device and a lock mechanism will be described. The optical image shake correction apparatus (first conventional example) described in Patent Document 1 is arranged at an equal interval on the outer periphery of a holding frame that holds a correction lens, and an annular linkage mechanism in which an intermediate lever is provided therebetween. A plurality of lock levers connected to each other has a lock mechanism configured to be opened and closed by driving a motor.

  Further, an optical image shake correction device (second conventional example) described in Patent Document 2 includes a lock member that is provided with lock cam portions at four locations on the inner peripheral portion and is rotatably held around the optical axis; A lock comprising a correction lens unit provided on the outer peripheral surface of the cylindrical portion of the correction lens unit and having four protruding shaft portions formed in the same phase as the lock cam portion when the lock member is rotated to the unlock position. It has a mechanism.

Further, the optical image shake correction device (third conventional example) described in Patent Document 3 has a configuration in which the lens frame is locked by fitting a plunger of a latch solenoid into a recess provided in the lens frame. It has a locking mechanism.
Japanese Patent No. 4050082 JP 2009-169292 A JP-A-10-221726

  However, according to the first conventional example, since the number of parts constituting the lock mechanism is large, there are many sliding portions between parts that are sources of noise, which is a disadvantageous structure for achieving noise reduction. In addition, since only the motor torque is required to move the correction lens holding frame in order to align the center of the correction lens with the optical axis, there is a problem that malfunction is likely to occur. In addition, there are inconveniences in terms of cost due to the large number of parts.

  Further, according to the second conventional example, in order for the lock cam portion to come into contact with the protruding portion, the lens frame must be accurately moved to the lock position, and if the movement is not accurately performed, the lock member is moved. Since there is no margin in the torque of the actuator to be rotated, it may cause malfunction. Furthermore, since the collision between the lock cam portion and the protrusion is unavoidable in the operation of the lock member, it is disadvantageous for noise reduction.

  Furthermore, according to the third conventional example, it is disadvantageous for noise reduction as in the other conventional examples, and since the plunger requires space in the thrust direction, the thickness of the lock mechanism is increased, and there are restrictions on optical design. It becomes a factor to increase.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an image shake correction mechanism that has a good image shake correction performance, a high quietness, a high speed and a high stability operation, a lock mechanism thereof, and an image pickup apparatus using them. It is said.

  Therefore, the present invention solves the above problems by the following means. For ease of understanding, reference numerals corresponding to the drawings showing an embodiment of the present invention are given and described, but the present invention is not limited to this.

  According to the first aspect of the present invention, a base member, an image blur correction lens are held, a lens holding member that is movable in a direction orthogonal to the optical axis with respect to the base member, and a permanent member fixed to the lens holding member A magnet is fixed to an electronic substrate fixed to the base member, and a coil that drives the lens holding member in a direction orthogonal to the optical axis by electromagnetic action between the permanent magnet and a back surface of the coil. A first yoke member fixed to the lens holding member, a second yoke member fixed to the lens holding member so as to be disposed on the back surface of the permanent magnet, and rotatably held with respect to the base member The lens holding member has an engaging portion provided through the base member, and the locking member is formed by a groove provided on the lens holding member side. It holds the engaging portion, an image blur correction apparatus, characterized in that for fixing the lens holding member in the optical axis center.

  According to a second aspect of the present invention, there is provided a base member, an image blur correction lens, a lens holding member that is movable in a direction orthogonal to the optical axis with respect to the base member, and the lens holding member. A coil that drives the lens holding member in a direction orthogonal to the optical axis by electromagnetic action with the permanent magnet, a permanent magnet fixed to the base member, and the lens holding so as to be disposed on the back surface of the permanent magnet A first yoke member fixed to the member; a second yoke member fixed to the lens holding member so as to be disposed on the back surface of the permanent magnet; and a lock rotatably held with respect to the base member The lens holding member has an engaging portion provided penetrating the base member, and the locking member is formed by a groove provided on the lens holding member side. It held, an image blur correction apparatus, characterized in that for fixing the lens holding member in the optical axis center.

  According to a third aspect of the present invention, the image blur according to any one of the first and second aspects, further comprising a cover member fixed to the base member so as to cover the lock member. It is a correction device.

  According to a fourth aspect of the present invention, there is provided an actuator having an output shaft extending through the cover member, fixed to the cover member, and driving the lock member. The image blur correction device according to claim 3.

  The invention shown in claim 5 has a spherical support member and a guide member for holding the support member, the base member on the side for holding the lens holding member, and the lens holding member on both sides. The guide member has a recess for holding the support member on a side of holding the lens holding member, and the support member has a movement range limited by the recess. The image blur correction device according to claim 1.

  Further, the invention shown in claim 6 is characterized in that the guide member has a concave portion for holding the support member on one surface and a seat surface on which the electronic substrate is arranged on the other surface. The image blur correction device according to claim 1.

In the invention shown in claim 7, the groove has two surfaces with respect to the optical axis orthogonal direction,
The image blur correction device according to any one of claims 1 to 6, wherein the groove portion has a shape in which an interval between the surfaces gradually increases from substantially the same width as the engagement portion. It is.

  In the invention shown in claim 8, three of the engaging portions are provided in the lens holding member, three of the groove portions are provided in the lock member, and the engaging portion and the groove portion are provided in three. Each of the surfaces of the groove portion close to the optical axis in the optical axis orthogonal direction and the side surface of the engaging portion abut, and the groove portion is in a direction away from the optical axis in the optical axis orthogonal direction. 8. The image blur correction device according to claim 7, wherein the lens holding member is fixed to the center of the optical axis by urging the engaging portion.

  According to a ninth aspect of the present invention, two engaging portions are provided in the lens holding member, two groove portions are provided in the lock member, and the engaging portion and the groove portion are provided in two. Each of the two surfaces provided in the groove portion abuts on a side surface of the engagement portion in the optical axis orthogonal direction, and sandwiches the engagement portion in the optical axis orthogonal direction, thereby holding the lens holding member. 8. The image blur correction device according to claim 7, wherein the image blur correction device is fixed at the center of the optical axis.

  Note that the configuration described with reference numerals may be modified as appropriate, and at least a part of the configuration may be replaced with another component.

  According to the present invention, it is possible to obtain an image shake correction mechanism, a lock mechanism thereof, and an image pickup apparatus using the same, which have good image shake correction performance, high silence, high speed and high stability. it can.

  Examples of the present invention will be described below.

  First, the configuration of a lens system and a camera system equipped with an image blur correction mechanism will be described. FIG. 28 is a block diagram illustrating a configuration of a camera system (including a lens) equipped with an image blur correction mechanism.

  In FIG. 28, 100 is a camera body, and 200 is a lens body. Reference numeral 101 denotes a lens structure, 103 denotes an aperture unit, 105 denotes an aperture drive circuit that drives the aperture unit, 117 denotes a focusing unit that drives a focusing lens to perform focusing, and 119 denotes a focusing lens drive circuit that drives the focusing unit. .

  In FIG. 28, 121 is an image blur correction unit that holds the image blur correction lens so as to be movable, 123 is a vibration detection device that detects vibration transmitted to the camera, and 125 is an image blur correction lens position that detects the position of the image blur correction lens. A detection device, 127 is an image blur correction lens driving device that drives the image blur correction lens, 129 calculates a target value of the image blur correction lens from outputs of the vibration detection device 123 and the image blur correction lens position detection device 125, An image blur correction CPU that controls the image blur correction lens driving device.

  In FIG. 28, 131 is a lock mechanism that mechanically captures the image blur correction lens of the image blur correction unit 121, 133 is a lock mechanism drive circuit that drives the lock mechanism, and 135 is a lock mechanism that normally captures the image blur correction lens. This is a lock detection device that detects whether or not the device is engaged.

  In FIG. 28, reference numeral 137 denotes an image blur correction switch that can be operated from the outside, and whether or not to perform image blur correction and which control to use among a plurality of image blur correction control methods is determined by a photographer's operation. Can be switched. Reference numeral 139 controls the operation of various circuits in the lens body, and when the camera body 200 is mounted, the lens contact 141 and the camera contact 245 are connected to communicate with the camera CPU 201. A lens mount 143 is coupled to the camera mount 243 to mechanically connect the camera body 200 and the lens body 100.

  In FIG. 28, reference numeral 201 denotes a camera CPU that controls the operation of various circuits in the camera body and communicates with the lens CPU 139 by connecting the lens contact 141 and the camera contact 245 when the lens body 100 is mounted. A power switch 203 that can be operated from the outside is a switch that activates the camera CPU 201 to enable power supply to each actuator and sensor in the system and operation of the system. 205 is a two-stroke release switch that can be operated from the outside, 207 is a mode dial that switches various settings of the camera body, 209 is a power supply for the operation of the entire camera system, 211 is various settings of the camera body and captured images. A display device having an LCD or the like for displaying.

  In FIG. 28, reference numeral 221 denotes a focus detection circuit that detects a focus from a signal output from the autofocus sensor 219, 225 denotes a mirror unit for guiding a light beam incident from the lens body 100 to the finder optical system 237, and 227 denotes A mirror driving device 229 for driving the mirror unit is a mirror driving circuit for controlling the mirror driving device. Reference numeral 231 denotes a shutter drive circuit that drives the shutter unit 233. A known penta roof prism 235 guides the light beam guided by the mirror unit 225 to the viewfinder optical system 237. Reference numeral 239 denotes a known photometric sensor, and reference numeral 241 denotes a photometric arithmetic circuit that processes a signal output from the photometric sensor 239. A camera mount 243 is coupled to the lens mount 143 to mechanically connect the camera body 200 and the lens body 100.

  Next, the main operation of the system shown in FIG. 28 will be described using the flowchart of FIG.

  (Step # 100) First, when the power is turned on by operating the power switch 203 in the camera body 200, power is supplied to the camera CPU 201 from the power source 209, and communication between the camera CPU 201 and the lens CPU 139 is started.

  (Step # 101) Next, it is determined whether or not the release switch 205 in the camera body 200 is half-pressed (1st release). The release switch 203 is normally a switch that can be pushed in two steps, and has a structure that can distinguish half-press (1st release) and full-press (2nd release). If it is determined that the release switch has been half-pressed, the process proceeds to step # 103. If not, step # 101 is repeated.

  (Step # 103) Subsequently, it is determined in the lens CPU 139 whether the image blur correction switch 137 is ON (OS operation selection). If the OS operation is selected here, the process proceeds to step # 105, and if not selected, the process proceeds to step # 125.

  (Step # 105) When proceeding to step # 105, the camera CPU 201 performs photometry and focus detection operation, and the lens CPU 139 performs focusing operation based on the focus detection result, as well as focal length (zoom position) and photographing distance (focus position). Detection is performed. Further, the lens CPU 139 turns on the power of the image blur correction CPU 129 and operates to unlock the correction lens by driving the lock mechanism while holding the image blur correction lens at the center of the optical axis.

  (Step # 107) Subsequently, the lens CPU 139 transmits the focal length (zoom position) and photographing distance (focus position) detected in step # 105 to the image blur correction CPU 129. The image blur correction CPU 129 starts an image blur correction operation based on the focal length and the shooting distance received from the lens CPU 139.

  (Step # 109) Next, it is determined whether or not the release switch 205 has been fully pressed (2nd release). If it is determined that the release switch has been fully pressed, the process proceeds to step # 111. If not, the process proceeds to step # 115.

  (Step # 111) In step # 111, the camera CPU 201 performs an exposure operation, and the lens CPU 139 performs an aperture operation in accordance with the exposure operation. During this time, the image blur correction operation is performed.

  (Step # 113) Subsequently, when the process proceeds to Step # 113, the image data obtained by the exposure operation is recorded in advance on a recording medium connected to the main body 200 in the camera.

  (Step # 115) Here again, it is determined whether or not the release switch 205 in the camera body 200 has been half-pressed (1st release). If it is determined that the release switch is half-pressed, the process proceeds to step # 109 again. If not, the process proceeds to step # 117.

  (Step # 117) The lens CPU 139 turns off the image blur correction CPU 129 and stops the image blur correction operation.

  (Step # 119) When the process proceeds to step # 119, the lens CPU 139 operates to lock the correction lens by driving the lock mechanism while holding the image blur correction lens at the center of the optical axis, and the power source of the image blur correction CPU 129 is turned on. Turn off.

  (Step # 121) Here again, it is determined whether or not the release switch 205 in the camera body 200 is half-pressed (1st release). If it is determined that the release switch is half-pressed, the process proceeds to step # 123. Otherwise, the process proceeds to step # 137.

  (Step # 123) In step # 123, the lens CPU 139 turns on the power of the image blur correction CPU 129, drives the lock mechanism while holding the image blur correction lens at the center of the optical axis, and unlocks the correction lens. Perform the action. Thereafter, the process returns to step # 107.

  (Step # 125) In step # 125, the camera CPU 201 performs photometry and focus detection operation, and the lens CPU 139 performs focusing operation based on the focus detection result, as well as the focal length (zoom position) and photographing distance (focus position). Detection is performed.

  (Step # 129) Next, it is determined whether or not the release switch 205 is fully pressed (2nd release). If it is determined that the release switch has been fully pressed, the process proceeds to step # 131. Otherwise, the process proceeds to step # 135.

  (Step # 131) In step # 131, the camera CPU 201 performs an exposure operation, and the lens CPU 139 performs an aperture operation in accordance with the exposure operation.

  (Step # 133) Subsequently, when the process proceeds to Step # 133, the image data obtained by the exposure operation is recorded in advance on a recording medium connected to the main body 200 in the camera.

  (Step # 135) Here again, it is determined whether or not the release switch 205 in the camera body 200 is half-pressed (1st release). If it is determined that the release switch is half-pressed, the process proceeds to step # 129 again. If not, the process proceeds to step # 137.

  (Step # 137) In step # 137, it is determined whether or not the power is turned off by operating the power switch 203 in the camera body 200. If the power source in the camera body 200 is turned off, the process proceeds to step # 139, and this flow ends. Otherwise, the process returns to step # 101.

  Next, the mechanical configuration of the image shake correction apparatus of the present embodiment will be described.

  FIG. 3 is an exploded perspective view of the image shake correction apparatus of the present embodiment. Reference numeral 1 denotes a base member, 2 denotes a lens holding member (lens barrel) for holding an image blur correction lens, and 3 denotes a concave portion for limiting a range in which a support member 6 described later can move. A guide member having a seating surface for mounting the substrate 4.

  4 is a first flexible printed circuit board to which a coil 9 and a hall element 10 to be described later are attached, 5 is a first yoke member formed of a steel plate with high magnetic permeability, 6 is a spherical shape made of metal or hard resin, It is a support member that sandwiches and supports the lens holding member 2 from the image plane side and the subject side.

  7 is a second yoke member formed of a steel plate having a high magnetic permeability like the first yoke member 5, 8 is a rectangular permanent magnet consisting of six, fixed at positions separated from each other, and 9 is a conductor. The coil 10 formed by winding is a Hall element that detects the magnetic lines of force of the permanent magnet 8.

  11 is a lock member having a lock shaft extending from the lens holding member 2 and a groove for capturing the swing shaft, and 12 is fixed to the base member 1, and is used to limit the movement of the lock member in the optical axis method. It is a cover member.

  Reference numeral 13 denotes a motor base member for fixing an actuator 14 and a photo interrupter 15 which will be described later, reference numeral 14 denotes an actuator that normally uses a stepping motor or a DC motor, and an actuator that drives the lock member 11; The photointerrupter 16 is a second flexible printed circuit board for electrically connecting the lens barrel to the actuator 14 and the photointerrupter 15.

  Reference numerals 17 to 21 denote fastening members for fastening the above-described members.

  The base member 1, the lens holding member 2, the guide member 3, the lock member 11, and the cover member 12 are all formed of synthetic resin or the like, and fiber reinforced resin (FRP) mixed with glass fiber or the like is used as necessary. It is done.

  Next, details of each component and the mutual relationship between the components will be described.

  First, the second yoke member 7 and the permanent magnet 8 are attached to the lens holding member 2 in which the image blur correction lens is inserted and fixed in advance by thermal caulking or the like (FIG. 9). At that time, the second yoke member 7 and the permanent magnet 8 are clamped by the clamping portions 2a-1, 2a-2, 2b-1, 2b-2, 2c-1, 2c-2 provided on the lens holding member 2. It is structured to be fixed by bonding or the like.

  Next, the lens holding member 2 and the guide member 3 are attached to the base member 1. At that time, the recesses 1d-3, 1e-3, 1f-3 provided in the base member 1 and the recesses 2d-3, 2e-3, 2f-3 provided in the lens holding member 2 face each other, respectively. The support members 6 are sandwiched and held one by one between them (FIG. 8).

  At this time, the projecting shaft portions 2a-3, 2b-3, 2c-3 provided on the lens holding member 2 are respectively provided in the holes 1a-3, 1b-3, 1c-3 provided on the base member 1. Inserted (FIG. 10).

  By inserting the protruding shaft portion 2b-3 into the hole portion 1b-3, the lens holding member 2 is prevented from rotating around the optical axis, and the Lorentz force generated by the permanent magnet 8 and the coil 9 is held by the lens. The structure prevents the member 2 from being used for the rotation operation and prevents the driving accuracy of the correction lens from being lowered.

  Further, the protruding shaft portions 2a-3 and 2c-3 are inserted into the holes 1a-3 and 1c-3, respectively, and the side surfaces of the protruding shaft portions 2a-3 and 2c-3 are the holes 1a-3 and 1c-3. A structure in which the movement range of the lens holding member 2 is limited by abutting on the inner wall surface, respectively.

  Similarly, recesses 3d-1, 3e-1, 3f-1 provided in the guide members 3d, 3e, 3f and recesses 2d-1, 2e-1, 2f-1 provided in the lens holding member 2 are provided. Are opposed to each other, and support members 6 are sandwiched and held one by one (FIG. 11).

  Further, the recesses 3d-4, 3e-4, 3f-4, 3d-5, 3e-5, 3f-5 provided in the guide members 3d, 3e, 3f and the recess 1d-4 provided in the base member 1, 1e-4, 1f-4, 1d-5, 1e-5, and 1f-5 are fitted to each other to prevent the lens holding member 2 from moving in the thrust direction.

  Then, the first flexible printed circuit board 4 on which the coil 9 and the Hall element 10 are previously attached by a known electronic component mounting method is placed on the upper surface of the guide member 3 fitted in the base member 1, and the guide members 3d and 3e are mounted. Recesses 3d-4, 3e-4, 3f-4, 3d-5, 3e-5, 3f-5 provided in 3f and holes 4d-4, 4e- provided in the first flexible printed circuit board 4. 4, 4 f-4, 4 d-5, 4 e-5, and 4 f-5 are combined, and the fastening member 17 is inserted. The fastening member 17 passes through the guide member 3 and the first flexible printed circuit board 4, is screwed into a screw hole cut in the base member 1, and is fastened.

  Further, the second yoke member 5 is fitted to the lens frame end 2 g of the lens holding member 2. At this time, the second yoke member 5 is prevented from moving in the thrust direction by the magnetic attractive force of the permanent magnet 8 already attached to the lens holding member 2. Further, convex portions 2g-1, 2g-2, 2g-3, 2g-4 (not shown), 2g-5 (not shown), 2g-6 (not shown) provided at the lens frame end 2g of the lens holding member 2 (Not shown) and the recesses 5g-1, 5g-2, 5g-3, 5g-4, 5g-5, and 5g-6 provided in the second yoke member 5 are fitted into the second yoke member 5, respectively. The yoke member 5 is structured to prevent relative movement in the rotational direction with respect to the lens holding member 2 (FIG. 14).

  With such a configuration, it is possible to prevent relative movement of the lens holding member 2 with respect to the base member 1 in the thrust direction and limit the movement range of the lens holding member 2 in the radial direction.

  Further, with such a configuration, the relative positions of the first yoke member 7, the permanent magnet 8, and the second yoke member 5 are always constant, so that the magnetic lines of force generated by the permanent magnet 8 are always stably rectified. Realize the structure.

  Further, when the lens holding member 2 and the guide member 3 are attached to the base member 1, the recesses 3d-4, 3e-4, 3f-4, 3d-5, 3e- provided in the guide members 3d, 3e, 3f are provided. 5, 3f-5 and the recesses 1d-4, 1e-4, 1f-4, 1d-5, 1e-5, 1f-5 provided in the base member 1 are respectively fitted and fixed. Has an easy structure.

  Next, the lock member 11 is attached to the base member 1. At that time, the projecting shaft portions 2a-3, 2b-3, 2c-3 of the lens holding member 2 projecting through the base member 1 are inserted into the lock groove portions 11a, 11b, 11c provided in the lock member 11, respectively. (FIG. 16).

  Further, a cover member 12 is attached to the base member 1. At that time, the protrusions 11 d-2 and 11 e-2 provided on the lock member 11 are inserted into the grooves 12 d and 12 e provided on the cover member 12. Holes 12d-6, 12e-6, 12f-6, 12f-7 provided in the cover member and holes 1d-6, 1e-6, 1f-6, 1f-7 provided in the base member 1 It is aligned and fastened by the fastening member 18 (FIG. 19).

  At this time, the range of movement of the protrusion 11d-2 provided on the lock member 11 inserted into the groove 12d provided on the cover member 12 is limited by the groove 12d provided on the cover member 12. With such a configuration, the rotation angle of the lock member 11 can be limited, and the position of the rotation end can be accurately determined (FIG. 17).

  Subsequently, the actuator 14 and the photo interrupter 15 are attached to the second flexible printed circuit board 16. At this time, electronic contacts 14f-2, 14f-3, 14f- provided to the actuator 14 on the electronic contacts 16f-2, 16f-3, 16f-4, 16f-5 provided on the second flexible printed circuit board 16 are provided. 4, 14f-5 are connected by known electronic component mounting means (soldering or the like). Similarly, the electronic contacts 15e-2, 15e-3, 15e provided on the actuator 14 on the electronic contacts 16e-3, 16e-4, 16e-5, 16e-6 provided on the second flexible printed circuit board 16 are used. -4, 15e-5, 15e-6 are connected by known electronic component mounting means (soldering or the like) (FIG. 24).

  Further, the actuator 14, the photo interrupter 15, and the second flexible printed circuit board 16 are attached to the motor base member 13. At this time, the holes 14f-6 and 14f-7 provided in the actuator 14 and the holes 13f-6 and 13f-7 provided in the motor base 13 are aligned and fastened by the fastening member 21, respectively. Further, the second flexible printed circuit board 16 is positioned by inserting the protruding shaft portion 13 b-5 provided on the motor base 13 into the hole portion 16 b-5 of the second flexible printed circuit board 16, and the fastening member 20. Is attached by being fastened to a hole 13b-8 provided in the motor base 13 through the hole 16b-8 of the second flexible printed board 16 (FIG. 21).

  Subsequently, the motor base member 13 to which the actuator 14, the photo interrupter 15, and the second flexible printed circuit board 16 are attached is attached to the cover member 12 attached to the base member 1. At this time, the projecting shaft portions 12f-8 and 12e-8 provided in the cover member 12 are positioned by being inserted into the holes 13f-8 and 13e-8 of the motor base member 13, and the fastening member 19 is the second member. The holes 12f-9, 12b-9, and 12e-9 of the motor base member 13 are fastened to holes 12f-9, 12b-9, and 12e-9 provided in the cover member 12, respectively. (FIG. 19).

  At this time, the pinion gear 14f-1 attached to the output shaft 14f-8 of the actuator 14 by press fitting or the like has a hole 13f-1 provided in the motor base 13 and a hole 12f- provided in the cover member 12. 1 and a hole 11 f-1 provided in the lock member 11, and meshes with a gear portion 11 f-2 provided in the lock member 11. With such a configuration, the lock member 11 can be rotated around the optical axis by driving the actuator 14 to perform a locking operation (FIG. 17).

  Further, at this time, the detection portion 15 e-2 of the photo interrupter 15 is inserted into the hole portion 13 e-2 provided in the motor base 13 and the hole portion 12 e-2 provided in the cover member 12 and provided in the lock member 11. The protruding portion 11e-2 thus attached is attached. With such a configuration, when the lock member 11 is rotated around the optical axis by driving the actuator 14, the protrusion 11 e-2 provided on the lock member 11 crosses the detection unit 15 e-2 of the photo interrupter 15 and performs a lock operation. The position of the accompanying lock member 11 can be detected (FIG. 17).

  Further, the contact 4d-9 provided on the first flexible printed circuit board 4 and the contact 16b-9 provided on the second flexible printed circuit board 16 are respectively mounted on a lens main board (not shown). Inserted into the connector and mechanically and electrically connected.

  Next, the locking operation will be described in detail.

  First, when the locking operation starts, the lens CPU 139 first instructs the image blur correction CPU 129 to hold the image blur correction lens at the center of the optical axis. Subsequently, the lens CPU 139 drives the actuator 14 to rotate the lock member 11.

  At this time, the protruding shaft portions 2a-3, 2b-3, and 2c-3 of the lens holding member 2 inserted into the lock groove portions 11a, 11b, and 11c provided in the lock member 11 are the lock groove portions 11a, 11b, and 11c, respectively. , Transition from the free sections 11a-1, 11b-1, 11c-1 to the lock sections 11a-3, 11b-3, 11c-3 via the tapered sections 11a-2, 11b-2, 11c-2. . Thereby, the movement of the protruding shaft portions 2a-3, 2b-3, 2c-3 of the lens holding member 2 in the radial direction is restricted, and the lens holding member 2 is mechanically held around the optical axis (FIG. 18). ).

  At this time, the hole 1b-3 provided in the base member 1 into which the protruding shaft portion 2b-3 is inserted can move the inserted protruding shaft portion 2b-3 in the radial direction, but in the rotational direction. Since the setting is such that the lens cannot be moved, the lens holding member 2 cannot rotate and is not unintentionally unlocked. Therefore, the lens holding member 2 rotates unintentionally during locking, and the protruding shaft portions 2a-3, 2b-3, 2c-3 of the lens holding member 2 are locked sections of the lock grooves 11a, 11b, 11c in the lock member 11. 11a-3, 11b-3, and 11c-3 are configured to prevent the lock from being released. (Fig. 27)

  At this time, taper sections 11a-2, 11b-2, and 11c in the lock grooves 11a, 11b, and 11c provided in the lock member 11 into which the protruding shaft portions 2a-3, 2b-3, and 2c-3 are inserted. -2 has a taper shape on both the inner and outer peripheral sides, and is gradually narrowed from the free section toward the lock section. Therefore, even if some trouble occurs in the control of holding the image blur correction lens at the center of the optical axis, and the lens holding member 2 is at a position shifted from the center of the optical axis, the locking member 11 is caused by the tapered shape on both sides described above. With this rotation, the projecting shaft portions 2a-3, 2b-3, 2c-3 of the lens holding member 2 are pushed (FIG. 26), and the lens holding member 2 is pushed back to the optical axis center. That is, even when some trouble occurs in which the lens holding member 2 is not held at the center of the optical axis, the lens holding member 2 is pushed back to the center of the optical axis, and the locking operation is performed reliably (FIG. 26).

  When the protrusion 11e-2 provided on the lock member 11 crosses the detection unit 15e-2 of the photo interrupter 15 with the rotation of the lock member 11, the light beam of the light source emitted from the detection unit 15e-2 is emitted. A signal indicating that the protrusion 11e-2 has passed through the photo interrupter 15 is output. Receiving this signal, the lens CPU 139 finishes driving the actuator 14, stops the rotation of the lock member 11, and turns off the image blur correction CPU 129.

  The second embodiment discloses an embodiment having a lot in common with the configuration and operation of the first embodiment. Since the configuration of the lens system and camera system on which the image blur correction mechanism is mounted and the main operation of these systems shown in the second embodiment are the same as those in the first embodiment, the description thereof will be omitted.

  Most of the mechanical configuration of the image blur correction apparatus according to this embodiment is the same as that of the first embodiment. The second embodiment is an exploded perspective view of the image blur correction apparatus according to the first embodiment shown in FIG. 3, in which the lens holding member 2 (FIG. 10) is the lens holding member 22 (FIG. 30) and the lock member 11 (FIG. 16) is. The structure is replaced with the lock member 23 (FIG. 31).

  Here, the details of each component and the mutual relationship between the components will be described.

  First, the second yoke member 7 and the permanent magnet 8 are attached to the lens holding member 22 in which the image blur correction lens is inserted and fixed in advance by thermal caulking or the like (FIG. 9).

  Next, the lens holding member 22 and the guide member 3 are attached to the base member 1. At this time, the protruding shaft portions 22a-3, 22b-3, and 22c-3 provided on the lens holding member 22 are respectively inserted into the holes 1a-3, 1b-3, and 1c-3 provided on the base member 1. (FIG. 30).

  By inserting the protruding shaft 22b-3 into the hole 1b-3, the lens holding member 22 is prevented from rotating around the optical axis, and the Lorentz force generated by the permanent magnet 8 and the coil 9 is held by the lens. The structure prevents the member 22 from being used for the rotation operation and prevents the driving accuracy of the correction lens from being lowered.

  Further, the protruding shaft portions 22a-3 and 22c-3 are inserted into the holes 1a-3 and 1c-3, respectively, and the side surfaces of the protruding shaft portions 22a-3 and 22c-3 are the holes 1a-3 and 1c-3. A structure in which the moving range of the lens holding member 22 is limited by abutting on the inner wall surface.

  Similarly to the first embodiment, the recesses 3d-1, 3e-1, 3f-1 provided in the guide members 3d, 3e, 3f and the recesses 22d-1, 22e-1, provided in the lens holding member 22, 22f-1 (both not shown) are opposed to each other, and each support member 6 is sandwiched and held therebetween.

  Further, the recesses 3d-4, 3e-4, 3f-4, 3d-5, 3e-5, 3f-5 provided in the guide members 3d, 3e, 3f and the recess 1d-4 provided in the base member 1, 1e-4, 1f-4, 1d-5, 1e-5, and 1f-5 are fitted to each other to prevent the lens holding member 22 from moving in the thrust direction.

  Then, the first flexible printed circuit board 4 on which the coil 9 and the Hall element 10 are previously attached by a known electronic component mounting method is placed on the upper surface of the guide member 3 fitted in the base member 1, and the guide members 3d and 3e are mounted. Recesses 3d-4, 3e-4, 3f-4, 3d-5, 3e-5, 3f-5 provided in 3f and holes 4d-4, 4e- provided in the first flexible printed circuit board 4. 4, 4 f-4, 4 d-5, 4 e-5, and 4 f-5 are combined, and the fastening member 17 is inserted. The fastening member 17 passes through the guide member 3 and the first flexible printed circuit board 4, is screwed into a screw hole cut in the base member 1, and is fastened.

  Further, as in the first embodiment, the second yoke member 5 is fitted to the lens holding member 22. At that time, the second yoke member 5 is prevented from moving in the thrust direction by the magnetic attractive force of the permanent magnet 8 already attached to the lens holding member 22. Further, the lens frame end 22g (not shown) of the lens holding member 22 and the recesses 5g-1, 5g-2, 5g-3, 5g-4, 5g-5, 5g- provided in the second yoke member 5 are provided. 6, the second yoke member 5 is structured to prevent relative movement in the rotational direction with respect to the lens holding member 22 (FIG. 14).

  With such a configuration, it is possible to prevent relative movement of the lens holding member 22 in the thrust direction with respect to the base member 1 and limit the movement range of the lens holding member 22 in the radial direction.

  Further, with such a configuration, the relative positions of the first yoke member 7, the permanent magnet 8, and the second yoke member 5 are always constant, so that the magnetic lines of force generated by the permanent magnet 8 are always stably rectified. Realize the structure.

  Further, when the lens holding member 22 and the guide member 3 are attached to the base member 1, the recesses 3d-4, 3e-4, 3f-4, 3d-5, 3e- provided in the guide members 3d, 3e, 3f are provided. 5, 3f-5 and the recesses 1d-4, 1e-4, 1f-4, 1d-5, 1e-5, 1f-5 provided in the base member 1 are respectively fitted and fixed. Has an easy structure.

Next, the lock member 23 is attached to the base member 1. At that time, the projecting shaft portions 22a-3 and 22c-3 of the lens holding member 22 projecting through the base member 1 are inserted into the lock groove portions 23a and 23c provided in the lock member 23, respectively (FIG. 31). . In Example 1, the protruding shaft portion 2b-3 of the lens holding member 2 is also inserted into the lock groove portion 11b provided in the lock member 11 in the same manner. However, since the protruding shaft portion 22b-3 in the second embodiment is shorter than the protruding shaft portions 22a-3 and 22c-3 (FIG. 30), both of the hole portions 1a-3 and 1b− provided in the base member 1 are used. 3 and 1c-3, but only the protruding shaft portions 22a-3 and 22c-3 reach the lock member 23.

  Subsequently, the actuator 14 and the photo interrupter 15 are attached to the second flexible printed circuit board 16, and these are attached to the cover member 12 attached to the base member 1 via the motor base member 13.

  Next, the locking operation will be described in detail.

  First, when the locking operation starts, the lens CPU 139 first instructs the image blur correction CPU 129 to hold the image blur correction lens at the center of the optical axis. Subsequently, the lens CPU 139 drives the actuator 14 to rotate the lock member 23.

  At this time, the projecting shaft portions 22a-3 and 22c-3 of the lens holding member 22 inserted into the lock groove portions 23b and 23c provided in the lock member 23 are respectively connected to the free sections 23a-1 and 23a-1 in the lock groove portions 23a and 23c. Transition from 23c-1 (FIG. 32) to taper sections 23a-2 and 23c-2 (FIG. 33) to lock sections 23a-3 and 23c-3 (FIG. 34). Thereby, the movement of the protruding shaft portions 22a-3 and 22c-3 of the lens holding member 22 in the radial direction is restricted, and the lens holding member 22 is mechanically held at the center of the optical axis (FIG. 18).

  At this time, the hole 1b-3 provided in the base member 1 into which the protruding shaft portion 22b-3 is inserted can move the inserted protruding shaft portion 22b-3 in the radial direction, but in the rotational direction. Since the setting is such that the lens cannot be moved, the lens holding member 22 cannot rotate and is not unintentionally unlocked. Therefore, the lens holding member 22 rotates unintentionally during locking, and the protruding shaft portions 22 a-3 and 22 c-3 of the lens holding member 22 are locked in the lock sections 23 a-3 and 23 c-of the lock grooves 11 a and 11 c in the lock member 23. 3 to prevent the lock from being released. (Fig. 34)

  At this time, the taper sections 23a-2 and 23c-2 in the lock groove portions 23a and 23c provided in the lock member 23 into which the protruding shaft portions 22a-3 and 22c-3 are inserted are the inner peripheral side and the outer peripheral side. Both of them are tapered, and are gradually narrowed from the free section toward the lock section. Therefore, even if some trouble occurs in the control for holding the image blur correction lens at the center of the optical axis, even if the lens holding member 22 is at a position shifted from the center of the optical axis, the locking member 23 is caused by the tapered shape on both sides described above. With this rotation, the projecting shaft portions 22a-3 and 22c-3 of the lens holding member 22 are pushed (FIG. 33), and the lens holding member 22 is pushed back to the optical axis center. In other words, even if some trouble occurs in which the lens holding member 22 is not held at the center of the optical axis, the lens holding member 22 is pushed back to the center of the optical axis, and the locking operation is performed reliably (FIG. 34).

  At this time, the lock sections 23a-3 and 23c-3 in the lock grooves 23a and 23c provided in the lock member 23 into which the protruding shaft portions 22a-3 and 22c-3 are inserted are the lens holding members when locked. In order to prevent the rattling of 22, it is a structure that needs to have substantially the same width as the outer diameter of the protruding shaft portions 22 a-3 and 22 c-3. On the other hand, the lock sections 11a-3, 11b-3, and 11c-3 in the lock grooves 11a, 11b, and 11c provided in the lock member 11 shown in the first embodiment are gradually narrowed from the free section toward the lock section. If the projecting shaft portions 2a-3, 2b-3, and 2c-3 are brought into contact with one of them in the radial direction, the lens holding member 2 can be locked without rattling. That is, the width of the grooves of the lock sections 11a-3, 11b-3, and 11c-3 may be larger than the protruding shaft portions 2a-3, 2b-3, and 2c-3. In other words, the accuracy of the groove in the second embodiment needs to be higher than that in the first embodiment.

  When the protrusion 23e-2 (not shown) provided on the lock member 23 crosses the detection unit 15e-2 of the photo interrupter 15 as the lock member 23 rotates, the detection unit 15e-2 emits light. The light beam from the light source is blocked, and a signal indicating that the protrusion 23e-2 has passed is output from the photo interrupter 15. Receiving this signal, the lens CPU 139 finishes driving the actuator 14, stops the rotation of the lock member 23, and turns off the image blur correction CPU 129.

  That is, the present invention provides an image shake correction mechanism that has a good image shake correction performance, a high quietness, a high-speed and high-stability operation, a lock mechanism thereof, and an imaging device using them. In particular, the base member 1 having the holes 1a-3, 1b-3, 1c-3, the lens holding member 2 having the projecting shafts 2a-3, 2b-3, 2c-3, and the lock groove A structure having a lock member 11 having 11a, 11b and 11c, or a base member 1 having holes 1a-3, 1b-3 and 1c-3, and a lens having projecting shaft portions 22a-3 and 22c-3 This is realized by the configuration having the holding member 22 and the lock member 23 having the lock groove portions 23a and 23c.

  In addition, as a secondary effect of the present invention, the provision of a thin lock mechanism has provided a margin in the mechanism design and increased the degree of freedom in optical design in the lens barrel, and in connection therewith, the common of the units It is possible to make it possible.

  Further, as a secondary effect of the present invention, it is possible to reduce the number of parts compared to the conventional example, to reduce the cost accordingly, and to reduce the assembly man-hour in connection therewith.

  Note that the image blur correction device according to the present invention is appropriately deformed and enlarged / reduced according to the lens barrel or the imaging device to which the present invention is applied. In addition, various modifications and changes such as a change in the external appearance of the apparatus due to a change in the outer diameter of the apparatus and an attachment position of the actuator can be made as necessary, but all fall within the equivalent scope of the present invention.

Furthermore, the image blur correction apparatus according to the present invention can be easily applied not only to the magnet movement (MM) type image blur correction apparatus shown so far but also to the coil movement (MC) type.

It is the perspective view which looked at the image blurring correction apparatus of the Example which concerns on this invention from the to-be-photographed object side. It is the perspective view which looked at the image blurring correction apparatus of the Example which concerns on this invention from the image surface side. 1 is an exploded perspective view of an image blur correction apparatus according to an embodiment of the present invention. 1 is a plan view of an image blur correction apparatus according to an embodiment of the present invention as viewed from a subject side. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. 1 is a perspective view of a base member 1 of an image blur correction device according to an embodiment of the present invention. 1 is a perspective view of a base member 1 of an image blur correction device according to an embodiment of the present invention. 3 is a perspective view of a lens holding member 2, a second yoke 7, and a permanent magnet 8 of the image blur correction device according to the embodiment of the present invention. FIG. 1 is a perspective view of a lens holding member 2, a second yoke 7, and a permanent magnet 8 of an image blur correction device according to a first embodiment of the present invention. It is a perspective view of the guide member 3 of the image blur correction apparatus of the Example which concerns on this invention. 1 is a perspective view of a first flexible printed circuit board 4 and a coil 9 of an image blur correction device according to an embodiment of the present invention. 1 is a perspective view of a first flexible printed circuit board 4 and a hall element 10 of an image blur correction device according to an embodiment of the present invention. It is a perspective view of the 1st yoke member 5 of the image blur correction apparatus of the Example which concerns on this invention. It is a perspective view of the 2nd yoke member 7 of the image blurring correction apparatus of the Example which concerns on this invention. 1 is a perspective view of a lock member 11 of an image blur correction device according to a first embodiment of the present invention. 1 is a perspective view of a lock member 11 of an image blur correction device according to an embodiment of the present invention. It is a top view which shows the shape of the lock groove part in the lock member 11 of the image blurring correction apparatus of the Example which concerns on this invention. It is a perspective view of the cover member 12 of the image blur correction apparatus of the Example which concerns on this invention. It is a perspective view of the cover member 12 of the image blur correction apparatus of the Example which concerns on this invention. It is a perspective view of the motor base member 13 of the image blur correction apparatus of the Example which concerns on this invention. It is a perspective view of the actuator 14 of the image blur correction apparatus of the Example which concerns on this invention. It is a perspective view of the photo interrupter 15 of the image blur correction apparatus of the Example which concerns on this invention. It is a perspective view of the 2nd flexible printed circuit board 16 of the image blur correction apparatus of the Example which concerns on this invention. It is a top view which shows the lock release state of the image blur correction apparatus of Example 1 which concerns on this invention. FIG. 3 is a plan view showing the image blur correction apparatus according to the first embodiment of the present invention during a locking operation. It is a top view which shows the locked state of the image blurring correction apparatus of Example 1 which concerns on this invention. It is a block diagram which shows the camera system in the Example which concerns on this invention. It is an operation | movement flowchart of the camera system in the Example which concerns on this invention. FIG. 6 is a perspective view of a lens holding member 22, a second yoke 7, and a permanent magnet 8 of an image blur correction device according to a second embodiment of the present invention. It is a perspective view of the lock member 23 of the image blur correction apparatus of Example 2 which concerns on this invention. It is a top view which shows the lock release state of the image blur correction apparatus of Example 2 which concerns on this invention. FIG. 10 is a plan view showing the image blur correction device according to the second embodiment of the present invention during a locking operation. It is a top view which shows the locked state of the image blurring correction apparatus of Example 2 which concerns on this invention.

DESCRIPTION OF SYMBOLS 1 Base member 2 Lens holding member 3 Guide member 4 1st flexible printed circuit board 5 1st yoke member 6 Support member 7 2nd yoke member 8 Permanent magnet 9 Coil 10 Hall element 11 Lock member 12 Cover member 13 Motor base member 14 Actuator 15 Photointerrupter 16 Second Flexible Printed Circuit Board 17 Fastening Member 18 Fastening Member 19 Fastening Member 20 Fastening Member 21 Fastening Member 22 Lens Holding Member 23 Lock Member 100 Camera Main Body 200 Lens Main Body

Claims (9)

A base member;
A lens holding member that holds an image blur correction lens and is movable in a direction perpendicular to the optical axis with respect to the base member;
A permanent magnet fixed to the lens holding member;
A coil fixed to an electronic substrate fixed to the base member, and driving the lens holding member in a direction orthogonal to the optical axis by electromagnetic action with the permanent magnet;
A first yoke member fixed to the lens holding member so as to be disposed on the back surface of the coil;
A second yoke member fixed to the lens holding member so as to be disposed on the back surface of the permanent magnet;
A lock member rotatably held with respect to the base member,
The lens holding member has an engaging portion provided through the base member,
An image blur correction device, wherein the lock member holds the engaging portion by a groove provided on the lens holding member side, and fixes the lens holding member to the center of the optical axis. A base member;
A lens holding member that holds an image blur correction lens and is movable in a direction perpendicular to the optical axis with respect to the base member;
A coil that is fixed to the lens holding member and drives the lens holding member in the direction perpendicular to the optical axis by electromagnetic action with the permanent magnet;
A permanent magnet fixed to the base member;
A first yoke member fixed to the lens holding member so as to be disposed on the back surface of the permanent magnet;
A second yoke member fixed to the lens holding member so as to be disposed on the back surface of the permanent magnet;
A lock member rotatably held with respect to the base member,
The lens holding member has an engaging portion provided through the base member,
An image blur correction device, wherein the lock member holds the engaging portion by a groove provided on the lens holding member side, and fixes the lens holding member to the center of the optical axis. The image blur correction apparatus according to claim 1, further comprising a cover member fixed to the base member so as to cover the lock member. 4. The actuator according to claim 1, further comprising an actuator that has an output shaft extending through the cover member, is fixed to the cover member, and drives the lock member. 5. Image blur correction device. A spherical support member, and a guide member for holding the support member,
The base member has a recess for holding the support member on the side holding the lens holding member, the lens holding member on both sides, and the guide member on the side holding the lens holding member,
The image blur correction apparatus according to claim 1, wherein the support member is limited in a movement range by the concave portion. The said guide member has a recessed part holding the said supporting member in one surface, and has a seat surface which arrange | positions the said electronic substrate in the other surface. The image blur correction device described in 1. The groove has two surfaces with respect to the direction perpendicular to the optical axis,
The image blur correction device according to any one of claims 1 to 6, wherein the groove portion has a shape in which an interval between the surfaces gradually increases from substantially the same width as the engagement portion. . Three engagement portions are provided on the lens holding member,
Three groove portions are provided in the lock member,
Each of the engagement portions and the groove portions provided by three,
Of the surfaces in the groove portion, the surface close to the optical axis in the direction orthogonal to the optical axis and the side surface of the engagement portion abut, and the groove portion moves the engagement portion in a direction away from the optical axis in the direction orthogonal to the optical axis. 8. The image blur correction device according to claim 7, wherein the lens holding member is fixed to the center of the optical axis by urging. Two engagement portions are provided on the lens holding member,
Two of the groove portions are provided in the lock member,
Each of the engaging portion and the groove portion provided two by two,
The two surfaces provided in the groove abut the side surface of the engaging portion in the optical axis orthogonal direction, and sandwich the engaging portion in the optical axis orthogonal direction so that the lens holding member is centered on the optical axis. The image blur correction device according to claim 7, wherein the image blur correction device is fixed.

Images