JP3869926B2 - Optical equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an optical apparatus having a shake correction apparatus that detects camera shake occurring in an optical apparatus and moves the lens in the direction orthogonal to the optical axis using this as image blur correction information.
[0002]
[Prior art]
With current cameras, all the important tasks for shooting, such as determining exposure and focusing, have been automated, and it is very unlikely that people who are unskilled in camera operation will fail to shoot.
[0003]
Recently, a system that corrects image blur due to camera shake applied to the camera has been studied, and there are almost no factors that cause a photographer to fail to shoot. Here, a system for correcting image blur due to camera shake will be briefly described. The camera shake at the time of shooting is usually a vibration of 1 Hz to 12 Hz as a frequency. However, in order to make it possible to take a picture without image shake even if such a camera shake occurs at the shutter release time, As an idea, it is necessary to detect the vibration of the camera due to the camera shake and to displace the correction lens in accordance with the detected value.
[0004]
Therefore, in order to be able to take a picture that does not cause image shake even if camera shake occurs, first, the camera vibration is detected accurately, and second, the optical axis change due to the camera vibration is displaced. It is necessary to correct it.
[0005]
In principle, this vibration (camera shake) is detected by a vibration detection means that detects acceleration, speed, etc., and a camera that outputs displacement by electrically or mechanically integrating the output signal of this vibration detection means. This can be done by mounting the shake detection means on the camera. Then, based on this detection information, the correction lens is displaced, and control for changing the photographic optical axis is performed, whereby image blur correction can be performed.
[0006]
Here, the outline of the image stabilization system using the shake detection means will be described with reference to FIG. The example of FIG. 7 is a system that suppresses image blur caused by camera vertical blur (pitch direction) 81p and camera horizontal blur (yaw direction) 81y in the direction of the arrow 81 shown.
[0007]
In the figure, reference numeral 82 denotes a lens barrel. Reference numerals 83p and 84y denote shake detection means for detecting camera vertical shake vibration and camera horizontal shake vibration, respectively, and 84p and 84y indicate the respective shake detection directions.
[0008]
Reference numeral 85 denotes a lens holding member that holds the correction lens, 86p and 86y denote coils that apply thrust to the lens holding member 85, and 87p and 87y denote detection elements that detect the position of the lens holding member 85. These form a position control loop, and the lens holding member 85 is driven with the outputs of the shake detection means 83p and 83y as target values to ensure the stability of the image on the image plane 88.
[0009]
The present applicant has also proposed various shake correction devices (see JP-A-6-289465, etc.).
[0010]
Here, the outer peripheral shape of each type of shake correction device is a cylindrical shape as seen in Japanese Patent Application Laid-Open No. 9-43661 and the like, and in this main body part, a lens drive part parallel to the optical axis direction, A driving unit for locking means for locking and unlocking the movement of the lens is disposed.
[0011]
[Problems to be solved by the invention]
However, the conventional shake correction device is fixed to a fixed member in the optical apparatus, and often has a configuration in which the shake correction device itself cannot be moved in the optical axis direction. there were.
[0012]
For example, in the case of an optical system configuration in which the front and rear lens groups of the shake correction device are moved together, it is necessary to connect the front and rear lens groups across the shake correction device. When the correction device is used, a member for connecting the front and rear lens groups has to be disposed on the outer side of the outer periphery of the shake correction device. In addition, since the lens drive unit and the lock member drive unit are arranged in the direction parallel to the optical axis, it is impossible to connect the respective dead spaces to provide a recess or a hole. Therefore, there has been a problem that the outer diameter of the optical device becomes large.
[0013]
Therefore, the present invention provides a shake correction apparatus that can integrally connect the lens groups before and after the apparatus or move the apparatus itself back and forth in the optical axis direction without increasing the outer diameter. And it aims at providing the optical instrument provided with this.
[0014]
[Means for Solving the Problems]
In order to achieve the above object, in the present invention, a support member that supports a lens, a holding member that holds the support member movably along an orthogonal plane orthogonal to the optical axis of the lens, and a coil that is attached to the support member And a magnet, the holding member is provided with the other of the coil and the magnet, and two magnetic driving means for driving the support member in two orthogonal directions within an orthogonal plane, and an optical having a shake correction unit. On the outer periphery of the holding member Three Provided with a recess, these One of the recesses is provided between two magnetic drive means ,each In the recess, the shake correction unit A first optical member disposed on the object side, and a second optical member disposed on the image plane side of the shake correction unit; Insert the connecting member that connects the Provided between each recess in the holding member and the optical axis is a restricting part that restricts the movement of the support member in the optical axis direction. ing.
[0015]
Specifically, when the holding member is configured to include a lock member that locks and unlocks the movement of the support member, and a lock driving unit that drives the lock member, Three Between the two magnetic drive means, between one of the magnetic drive means and the lock drive means, and between the other of the magnetic drive means and the lock drive means. In Provide.
[0016]
With this configuration, an optical system configuration that integrally connects the front and rear lens groups of the shake correction device without increasing the outer diameter of the optical apparatus, or the shake correction device itself as an optical axis is adopted. It is possible to adopt a configuration that moves in the direction, and it is possible to reduce restrictions on optical design.
[0017]
It should be noted that a restricting portion that restricts movement of the lens in the optical axis direction is provided in a portion that is originally a dead space inside the upper concave portion of the main body member, or that the lens driving means and the lock driving means are arranged in substantially the same optical axis orthogonal plane Or the like, the shake correction apparatus, and thus the entire optical apparatus, can be made compact.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
(First embodiment)
1 to 6 show a shake correction apparatus according to a first embodiment of the present invention and a lens barrel (optical apparatus) including the shake correction apparatus. FIG. 1 is an exploded perspective view showing the structure of the main part of the shake correction apparatus, FIG. 2 is a perspective view of a stepping motor configured in the B part of FIG. 1, and FIG. 3 is viewed from the left direction of FIG. However, the flexible circuit board 10 is removed), and FIG. 4 is a view of the shake correction device viewed from the side opposite to FIG. 5 is a cross-sectional view taken along line AA in FIG. 4, and FIG. 6 is a cross-sectional view of the entire lens barrel. First, the configuration of the shake correction apparatus will be described with reference to FIGS. The correction lens L5 is held by the support frame 1 and performs shake correction by moving the plane orthogonal to the optical axis with respect to the ground plane (main body member in the claims) 2. A sliding cam 2a is disposed on the same plane orthogonal to the optical axis of the main plate 2. In three places Is provided.
[0019]
Reference numeral 7 denotes a sliding pin, which is press-fitted into three holes 1a provided in the support frame 1 through a sliding cam 2a. The support frame 1 is regulated in the optical axis direction with respect to the base plate 2 by the sliding pin 7 engaging with the sliding cam 2a, but can move in all directions on the optical axis orthogonal plane.
[0020]
The sliding cam 2a is formed in the inner part of three concave portions (recessed portions in the claims) 2b of the base plate 2 whose outer peripheral shape has a smaller diameter.
[0021]
Reference numeral 2c denotes support holes provided at three positions on the outer periphery of the base plate 2. By inserting a member such as a roller 230 into the support holes 2c as described later, the shake correction apparatus can be supported in the optical apparatus. it can.
[0022]
Reference numerals 6p and 6y denote magnets which are magnetically coupled to the yokes 5p and 5y. The yokes 5p and 5y are fixed to the support frame 1 with screws 12 according to the driving directions in the pitch direction (vertical direction) and yaw direction (horizontal direction), respectively. The magnets 6p and 6y enter between the arm portions 1c provided on the support frame 1 so that positional displacement with respect to the support frame 1 is prevented.
[0023]
On the other hand, coil units (lens driving means referred to in claims) 8p and 8y are fixed to the base plate 2 by screws 14 at positions facing the magnets 6p and 6y. A method for incorporating the coil unit will be described later.
[0024]
This coil unit 8p (same for 8y) is integrally formed of a coil frame 8a made of a resin material and a winding coil 8c wound around the coil frame 8a, and is formed on the first step 8e of the coil frame 8a. Both terminals of the winding coil 8c are connected to a terminal pin 8b, which is a press-fitted conductive member, to form a unit. The terminal pin 8b penetrates the flexible circuit board 10 described later and is soldered to the board 10 to be electrically connected.
[0025]
In the shake correction apparatus configured as described above, the correction lens L5 and the support frame 1 are driven in the pitch direction (P) and the yaw direction (Y) by energizing the coil units 8p and 8y to correct the image shake. can do.
[0026]
The pitch direction and the yaw direction are the vertical direction and the horizontal direction, respectively. This is because the vibration detection means such as a vibration gyroscope (not shown) detects the vibration of the optical device separately for the pitch component and the yaw component. It is.
[0027]
As can be seen from FIG. 3, in the present embodiment, the coil units 8p and 8y and the stepping motor are arranged at positions opposite to each other across the optical axis in the same optical axis orthogonal plane of the ground plane 2. . For this reason, the recessed part 2b can be formed in three places between the coil unit 8p and the stepping motor, between the coil unit 8y and the stepping motor, and between the coil units 8p and 8y.
[0028]
Further, the lens barrel is reduced in the radial direction by inserting the members 217a connecting the lens groups arranged in the front and rear directions of the shake correction device as described later in the recesses 2b at three locations. be able to.
[0029]
Reference numeral 3 denotes a lock ring (lock member referred to in the claims), which is rotatably attached to the main plate 2. The lock ring 3 rotates around the optical axis by rotating the output of the stepping motor (lock driving means referred to in the claims) configured in the B part of FIG. Lock in a predetermined position in the plane orthogonal to the optical axis, or release the lock. The configuration and operation of the stepping motor and the operation of the lock ring 3 will be described later.
[0030]
Reference numeral 4 denotes a rotation restricting member, which has two shaft portions 4a extending in the optical axis direction. These shaft parts 4a slide through a hole 3d formed in the lock ring 3 and a hole 2g formed in the base plate 2 into a long hole 1d formed in the support frame 1 so as to extend in the lens radial direction. It is possible to fit. Thereby, the rotation of the support frame 1 around the optical axis (R direction) is restricted.
[0031]
Reference numeral 10 denotes a flexible circuit board having a plurality of conductive layers, which are fixed to the ground plane 2 with screws 13. Photo reflectors 16p and 16y for position detection corresponding to movement positions in the pitch and yaw directions are mounted on the surface of the substrate 10 on the support frame 1 side, and a position detection circuit or the like is mounted on the opposite surface. A plurality of electric elements 15 constituting the above are mounted.
[0032]
The board 10 is also provided with holes for soldering through the terminals 194a, 194b, 195a, 195b of the stepping motor and the terminals 8b of the coil units 8p, 8y.
[0033]
The flexible circuit board 10 is formed with an extension portion 10a connected to another circuit board, and the extension portion 10a is formed on the base plate 2 in the optical axis direction in order to prevent interference with other components. It is fixedly supported by a double-sided tape or the like on the protruding portion 2t provided to extend. Further, the base plate 2 is provided with a chamfered portion 2d so that no stress is applied to the bent portion of the extending portion 10a.
[0034]
Reference numerals 9p and 9y are target members for position detection, which are bonded and fixed to the yokes 5p and 5y, respectively. A black and white pattern is printed on the target members 9p and 9y so that the outputs of the photo reflectors 16p and 16y change at a constant rate according to the movement of the support frame 1. Adhered to the yokes 5p and 5y, respectively. The positioning of the target members 9p and 9y and the yokes 5p and 5y with respect to the support frame 1 is performed by fitting the dowels 1e of the support frame 1 into the holes 9a and 5a.
[0035]
Reference numeral 11 denotes an assist spring. To help prevent the correction lens L5 and the support frame 1 from being damaged and return to the center position, hooks at both ends are connected to the hook 2f of the base plate 2 and the hook 1f of the support frame 1. Be hooked.
[0036]
Next, a stepping motor that drives the lock ring 3 will be described with reference to FIG. This stepping motor is configured as a unit in section B of FIG.
[0037]
Reference numeral 191 denotes a stator yoke in which a plurality of (six in this embodiment) plates of the same shape made of soft magnetic material are stacked and fixed to form a unit. 192 is the same component as the stator yoke 1 and is the other stator yoke of the two-phase type stepping motor. The stator yoke 192 is used with the stator yoke 191 turned upside down. Reference numeral 193 denotes a plastic magnet rotor which is rotationally driven by being excited by the stator yokes 191 and 192. Different magnetic poles are magnetized separately and alternately on the outer periphery of the rotor. The rotor 193 is integrally provided with a gear 193 a that transmits the rotation to the gear portion 3 a of the lock ring material 3.
[0038]
Reference numerals 194 and 195 denote coils for exciting the stator yoke 191 and the stator yoke 192, respectively, and the coils 194 and 195 are composed of the same parts. The coils 194 and 195 are energized through the connection terminals 194a, 194b, 195a and 195b, thereby exciting the stator yoke 191 and the stator yoke 192, respectively.
[0039]
The stator yokes 191 and 192 are each positioned and supported by a shaft 2e provided on the base plate 2, and the rotation shaft 193b of the rotor 193 is rotatably supported by the base plate 2.
[0040]
Reference numeral 196 denotes a motor case lid, which has a hole 196f into which the rotary shaft 193c of the rotor 193 is rotatably fitted. The motor case lid 196 is attached to the base plate 2 by hooking the claw portions 196 a to 196 e into the groove portions 2 h of the base plate 2.
[0041]
Next, the operation of the stepping motor will be described. When the coil 194 or the coil 195 is energized through the connection terminals 194a, 194b, 195a and 195b, a magnetic field is generated in the stator yokes 191 and 192, and interacts with the magnetic field of the magnet rotor 193 to form a closed magnetic circuit. If the coil 195 is not energized at this time, the magnetic path generated by the energized coil 194 becomes dominant and causes the magnet rotor 193 to generate rotational torque in one direction.
[0042]
Coil 194 Is not energized, the magnetic path generated by the energized coil 195 becomes dominant, causing the magnet rotor 193 to generate rotational torque in the other direction. Similarly, when both coils 194 and 195 are energized, magnetic paths are formed in the stator yokes 191 and 192, respectively, and interact with the magnet rotor 193 to give rotational torque to the magnet rotor 193.
[0043]
Accordingly, the stepping motor can be driven by energizing both coils 194 and 195 while sequentially switching the current direction. The rotation of the magnet rotor 193 is transmitted to the lock ring 3 via the gear portion 193a and the gear portion 3a, whereby the lock ring 3 can be rotated by a predetermined angle.
[0044]
Cams 3b are formed at four locations on the inner periphery of the lock ring 3. By engaging and disengaging these cams 3b and four projections 1b provided on the support frame 1 (only two locations are visible in FIG. 1). The support frame 1 is locked and unlocked.
[0045]
That is, when the lock ring 3 is rotated counterclockwise (as viewed from the substrate 10 side), the cam portion 3b is detached from the protrusion 1b of the support frame 1, so that the support frame 1 is free from the lock ring 3 ( Unlocked). On the other hand, when the lock ring 3 is rotated in the clockwise direction, the innermost circumferential portion 3c of the cam portion 3b comes into contact with the protrusion 1b, the support frame 1 engages with the lock ring 3, and the support frame 1 is moved. Lock to the main plate 2.
[0046]
Accordingly, when the shake correction is performed, the lock ring 3 is rotationally driven counterclockwise by the stepping motor to unlock the support frame 1, and when the shake correction is completed, the lock ring 3 is rotationally driven clockwise. The support frame 1 is locked with respect to the main plate 2.
However, when shake correction driving is performed as described above, the support frame 1 can move freely in the pitch direction (P) and the yaw direction (Y) shown in FIG. End up. Since this rotation deteriorates the shake correction accuracy, in this embodiment, in order to reduce the influence of the rotation, as described above, the two shaft portions 4a extending from the rotation restricting member 4 are respectively connected to the lock ring 3. 3d and the hole 2g provided in the base plate 2 are pierced and slidably fitted into the long hole 1d of the support frame 1.
[0047]
The rotation restricting member 4 is restricted from moving in the optical axis direction when the claws 2j and 2k (see FIG. 4) provided on the base plate 2 are engaged. Further, when the sliding surfaces 4b, 4c, 4d, and 4e of the rotation restricting member 4 are slidably fitted to the side surfaces of the protrusions 2m and 2n around the shaft support portion of the rotor magnet 193 on the base plate 2, the rotation restriction The member 4 can move only in the direction B in FIG.
[0048]
By configuring as described above, the support frame 1 can no longer rotate with respect to the base plate 2, and can be moved only in the pitch direction and the yaw direction by the driving force by the magnets 6p and 6y and the coil units 8p and 8y. Specifically, in the direction B of FIG. 5, the support frame 1 moves with respect to the base plate 2 together with the rotation restricting member 4, and in the direction C orthogonal to the direction B, only the base frame 2 is supported by the shaft 4 a. Move against. Further, the inner circumferential opening of the rotation restricting member 4 has a substantially elliptical shape in which the B-direction dimension b moving with the support frame 1 is smaller than the C-direction dimension c. Thereby, the harmful light which passes through the space which arises with the movement of the support frame 1 can be cut effectively.
[0049]
Next, a method for assembling the coil units 8p and 8y will be described with reference to FIGS. The coil unit 8p (8y is the same, so only 8p will be described below) is first inserted into the ground plane 2 from the direction orthogonal to the optical axis so as to follow the coil mounting surface 2s of the ground plane 2. When the coil unit 8p is provided on the surface 2s of the base plate 2 and gets over the positioning projection 2r having two inclined surfaces, the coil retainers 2p and 2q and the resin portion of the coil unit 8p are elastically deformed.
[0050]
When the insertion is further advanced, the positioning projection 2r enters the through hole 8f formed between the planar wall portion covering the magnet facing surface of the winding coil 8c in the coil unit 8p and the mounting surface, and the coil unit 8p is connected to the ground plate. 2 is positioned. Thereafter, the coil unit 8p is drawn into and fixed to the base plate 2 by screws 14 inserted into the holes 8g from the back side of the base plate 2 (opposite side of the substrate 10).
[0051]
When driving with the coil unit 8p and the magnet 6p as in the present embodiment, the loss of magnetic force due to these air gaps is large. Therefore, the driving force cannot be increased unless the gap between the coil unit 8p and the magnet 6p is reduced. Therefore, in order to maintain this interval accuracy with high accuracy, in the present embodiment, the coil unit 8p is hardly detached from the positioning projection 2r by providing the coil pressers 2p and 2q on the base plate. Further, the warp deformation of the coil unit 8p when pulled by the screw 14 is prevented, and interference with the magnet 6p and the like is avoided.
[0052]
The coil unit 8p is provided with a second step portion 8d that is higher in two directions than the first step portion 8e into which the terminal portion 8b is press-fitted, and the coil presser 2p is applied to the step portion 8d. Touch. This is to prevent disconnection of the coil 8c (the end portion is connected to the terminal portion 8b) when the coil unit 8p is inserted from the direction orthogonal to the optical axis.
[0053]
As described above, the assembly workability of the coil units 8p and 8y is improved.
[0054]
In the present embodiment, the case where the displacement of the support frame 1 in the optical axis direction is performed by the engagement of the cam 2a and the pin 7 has been described.
[0055]
In the present embodiment, the case where the magnets 6p and 6y are attached to the support frame 1 and the coil units 8p and 8y are attached to the base plate 2 has been described. On the contrary, the coil unit is attached to the support frame and attached to the base plate. A magnet may be attached.
[0056]
Next, the overall configuration of the lens barrel incorporating the shake correction device will be described with reference to FIG. This lens barrel is a single-lens reflex interchangeable zoom lens, and has six groups of lenses indicated by L1 to L6. All of the first to sixth lens units L1 to L6 are moved by the zoom operation, and the second lens unit L2 is moved by the focusing operation.
[0057]
Further, the third group lens L3 and the sixth group lens L6 move integrally, and the fifth group lens (correction lens) L5 performs the shake correction operation as described above.
[0058]
Reference numeral 201 denotes a filter frame, in which a filter is attached to an inner screw portion provided at the tip, and an accessory such as a hood is attached to an outer bayonet portion. A first group lens L1 is held inside the filter frame 201.
[0059]
Reference numeral 202 denotes a zoom operation ring, which can rotate around the optical axis while being restricted from moving in the optical axis direction by a thrust position regulating roller 204. The zoom operation ring 202 is rotated integrally with the cam ring 210 by the zoom key 203.
[0060]
The cam ring 210 is integrally engaged with the second group lens barrel 222 that holds the second group lens L2 and the sixth group lens barrel 214 that holds the sixth group lens L6, and holds the third group lens L3. Cam grooves are formed in which the group barrel 217, the fourth group barrel 207 holding the fourth group lens L4, and the rollers 226, 218, 227, 230 attached to the base plate 2 of the shake correction device 220 are respectively engaged. .
[0061]
Therefore, when the zoom operation ring 202 is rotated, the cam ring 210 is rotated, and the second to sixth group lenses L2 to L6 can be advanced and retracted in the optical axis direction by the cam grooves.
[0062]
When the zoom operation ring 202 rotates, the intermediate tube 231 advances and retreats in the optical axis direction by the lead groove formed inside the zoom operation ring 202 and engages with the cam groove formed inside the intermediate tube 231. The first lens unit L1 moves forward and backward in the optical axis direction together with the filter frame 201.
[0063]
Reference numeral 220 denotes the shake detection device described above, which is connected to the main board 215 by the flexible circuit board 10 (see FIG. 1). Reference numeral 206 shown by oblique lines denotes a focus unit, which is connected to the main board 215 and performs focus driving. In this lens barrel, the focusing operation can also be performed by rotating the manual ring 221.
[0064]
Reference numeral 208 denotes an exterior ring, which is provided with a switch 219 for selecting ON / OFF of the scale window 209 and the shake correction device 220.
[0065]
Reference numeral 211 denotes a fixed cylinder, and a guide cylinder 228 and a camera mount 212 are coupled to the fixed cylinder 211. In addition, the roller 230 of the shake correction device 220 is slidably fitted in the straight groove of the guide tube 228. Reference numeral 213 denotes a back cover.
[0066]
Reference numeral 215 denotes a contact block for electrical connection with the camera, and is connected to the main board 216 by the flexible circuit board 10.
[0067]
Reference numeral 225 denotes a sub-cam ring, which changes the amount of advance / retreat in the optical axis direction by the focus of the second group lens L2 depending on the focal length.
[0068]
A diaphragm unit 229 is electrically connected to the main board 216 by the flexible circuit board 10. The diaphragm unit 229 is fixed to the third group barrel 217.
[0069]
An encoder unit 222 generates a zoom signal.
[0070]
Here, in this lens barrel, the arm portions 217a (see FIGS. 3, 4 and 6) formed at the three positions of the third group barrel 217 are recessed portions 2b formed on the base plate 2 of the shake correction device 220. of Outside It extends rearward in the optical axis direction through the side, and the distal ends of these arm portions 217a are coupled to the sixth group barrel 214. As a result, the third group barrel 217 and the sixth group barrel 214 integrally move forward and backward in the optical axis direction.
[0071]
The outer diameter of the third group barrel 217 is the same as the outer diameter of the shake correction device 220, and both are slidably fitted to the inner periphery of the guide barrel 228. That is, the outer diameter does not increase even if the front and rear lens barrels 217 and 214 of the shake correction apparatus 202 are connected. Therefore, the enlargement of the lens barrel in the radial direction can be avoided.
[0072]
In this embodiment, the lens barrels arranged in the recesses of the shake correction device are arranged in the front and rear direction of the optical axis. Linking Although the case where the member to be inserted is inserted has been described, another lens barrel constituent member (for example, a member such as a guide bar that moves and guides the shake correction device in the optical axis direction) may enter the recess. .
[0073]
In the present embodiment, the single lens reflex interchangeable lens barrel provided with the shake correction device has been described, but the optical apparatus of the present invention is not limited to this.
[0074]
【The invention's effect】
As described above, according to the present invention, device constituent members extending in the front and rear of the main body member in the optical axis direction, for example, optical elements arranged in the front and rear in the optical axis direction of the shake correction device, on the outer periphery of the main body member An optical system that integrally moves the lens groups before and after the shake correction device without increasing the outer diameter of the optical device that accommodates the shake correction device. Or a configuration in which the shake correction apparatus itself is moved in the optical axis direction can be employed. For this reason, restrictions on optical design can be reduced.
[0075]
It should be noted that a restricting portion that restricts movement of the lens in the optical axis direction is provided in a portion that is originally a dead space inside the upper concave portion in the shake correction device, or that the lens driving means and the lock driving means are substantially the same optical axis orthogonal surface. If it is arranged inside, it is possible to make the shake correction apparatus and thus the entire optical apparatus compact.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a shake correction apparatus according to a first embodiment of the present invention.
FIG. 2 is an exploded perspective view of a stepping motor unit of the shake correction device.
FIG. 3 is a front view of the shake correction apparatus.
FIG. 4 is a rear view of the shake correction apparatus.
5 is a cross-sectional view taken along line AA in FIG.
FIG. 6 is a cross-sectional view of a lens barrel provided with the shake correction device.
FIG. 7 is a system diagram of a conventional shake correction apparatus.
[Explanation of symbols]
1: Support frame
2: Ground plane
2b: recess
3: Lock ring
4: Rotation restricting member
5: York
6p, 6y: Magnet
7: Slide pin
8p, 8y: Coil unit
10: Flexible circuit board
217a: (For connecting the third group barrel and the sixth group barrel) Arm
L5: Correction lens

Claims (3)

A support member supporting the lens;
A holding member that holds the support member movably along an orthogonal plane orthogonal to the optical axis of the lens;
One of a coil and a magnet is provided on the support member, the other of the coil and the magnet is provided on the holding member, and two magnetic drive means for driving the support member in two orthogonal directions within the orthogonal plane; An optical apparatus having a shake correction unit provided,
Three recesses are provided on the outer periphery of the holding member, and one of these recesses is provided between the two magnetic driving means ,
A connecting member that connects the first optical member disposed on the object side of the shake correction unit and the second optical member disposed on the image plane side of the shake correction unit is inserted into each recess. Has been
An optical apparatus characterized in that a restricting portion for restricting movement of the support member in the optical axis direction is provided between the concave portions of the holding member and the optical axis . The holding member includes a lock member that locks and unlocks the movement of the support member, and a lock driving unit that drives the lock member,
It said three recesses, between said two magnetic drive means, between one said lock drive means of the magnetic drive means, it is provided between the other and the lock drive means of said magnetic drive means The optical apparatus according to claim 1. The optics, optical apparatus according to claim 1 or 2, characterized in that to the camera an interchangeable lens device removably attached.

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