JP2006349803A - Image blur correcting device and camera system equipped therewith - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image blur correcting device capable of restraining a situation that one actuator for driving a holding frame in a direction perpendicular to an optical axis becomes the action load of the other actuator and achieving miniaturization, and a camera system equipped the image blur correcting device. <P>SOLUTION: The image blur correcting device where a fixed frame 1 and the holding frame 3 supported movably with respect to the fixed frame and holding an image blur correction system 2 are arranged to be superposed as seen from an optical axis direction is equipped with a first driving means 6 and a second driving means 7 driving the holding frame in the direction perpendicular to the optical axis with respect to the fixed frame based on an image blur correction signal. The first driving means and the second driving means are arranged at positions on both sides of the holding frame while putting the holding frame in between. By a fixing member 4 attached to the fixed frame from an opposite side to the holding frame side opposed to the fixed frame, the first driving means and the second driving means are pressed and held between the fixed frame and the holding frame and between the fixing member and the holding frame. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image shake correction apparatus and a camera system including the image shake correction apparatus. For example, an image shake correction apparatus that detects camera shake due to camera shake and performs image shake correction based on the shake information. It is about.

2. Description of the Related Art Conventionally, there has been known an apparatus for performing image stabilization by suppressing image shake correction of an optical system including a camera, that is, vibration caused by hand shake. In general, this includes a sensor that detects vibration and a correction system that performs correction so as not to cause image shake in accordance with a signal from the sensor.
This type of image shake correction apparatus detects camera shake vibration (usually tilt vibration about two axes perpendicular to the photographing optical axis) as an acceleration signal, velocity signal, or displacement signal by a sensor, and detects these signals. If necessary, the signal processing system performs integration to convert to a displacement signal or speed signal, and drives the correction system in the vibration suppression direction in response to the converted signal.
When performing optical correction, the correction system is configured to swing the optical system in the radial direction or to rotate about two axes perpendicular to the photographing optical axis, thereby suppressing vibration of the image formed. A feedback system control mechanism is configured.

Up to now, the moving frame is driven in the direction perpendicular to the first optical axis with respect to the fixed frame, and the holding frame for holding the anti-vibration lens is driven in the direction perpendicular to the second optical axis with respect to the moving frame. Anti-vibration lens devices have been commercialized, but the fixed part, holding frame, and moving frame are each arranged in the direction perpendicular to the optical axis or stacked in the direction of the optical axis. It was necessary to take a large space to do.
For this reason, in Patent Document 1, a linear vibration type actuator is adopted, and the moving frame, the holding frame, and the fixed portion are arranged in this order in the optical axis direction, and driven in the direction perpendicular to the first optical axis. A first actuator is disposed between the fixed portion and the moving frame, and an actuator that is driven in a direction perpendicular to the second optical axis is disposed between the moving frame and the holding frame. Methods have been proposed for reducing the dimensions.
Japanese Patent Laid-Open No. 10-254012

However, in the above-mentioned conventional example of Patent Document 1, the dimension in the optical axis direction can be reduced as described above, but the actuator attached to the fixed frame also serves as a guide member in the driving direction. It has become. Therefore, when the correction lens group is moved, for example, when the second actuator that is driven in the direction perpendicular to the second optical axis is driven, the second actuator is driven in the direction perpendicular to the first optical axis. Will be moved. Therefore, a load is applied to the driving of the second actuator, and the operating load of the connecting means for supplying power to the first actuator is added, which becomes a load in operation and disadvantageous in terms of power efficiency. .
In addition, a space for operating the connecting means for supplying power is required, which is disadvantageous in reducing the size.

  In the present invention, in view of the above problems, one of the actuators driven in the direction perpendicular to the optical axis becomes an operation load of the other actuator, and the electrical connection means for feeding the actuator causes a disadvantage in space. An object of the present invention is to provide an image blur correction device that is suppressed and can be reduced in size, and a camera system including the image blur correction device.

In order to solve the above-described problems, the present invention provides an image shake correction apparatus configured as follows, and a camera system including the image shake correction apparatus.
That is, the image shake correction apparatus of the present invention is arranged such that the fixed frame and the holding frame that is supported movably with respect to the fixed frame and holds the image shake correction system are overlapped when viewed from the optical axis direction. First holding means for driving the holding frame in a direction perpendicular to the first optical axis with respect to the fixed frame based on an image blur correction signal, and second driving means for driving in a direction perpendicular to the second optical axis, An image blur correction apparatus that corrects a shake, wherein the first drive unit and the second drive unit are disposed at positions on both sides of the holding frame with the holding frame interposed therebetween, and face the fixed frame. The fixing member has a fixing member attached to the fixing frame from the opposite side of the holding frame side, and the fixing member is configured such that the pressing force to the fixing frame side can be adjusted by a biasing member, and the first driving is performed by the fixing member. Means and the second drive means between the fixed frame and the holding frame and Between serial and fixing member the holding frame, is characterized in that it is configured to be pressed and held.
Further, the camera system of the present invention is a camera system having a camera body and a lens device, and includes the above-described image shake correction device on the lens device side, and a holding frame that holds the image shake correction system performs image shake correction. It is characterized by being configured as a holding frame for holding an optical system for the purpose.
According to another aspect of the present invention, there is provided a camera system including a camera body and a lens device, the camera body side including the image blur correction device described above, and a holding frame that holds the image blur correction system corrects the image blur. It is characterized by being configured as a holding frame for holding an image pickup device for this purpose.
In the present invention, in these configurations, the first driving unit and the second driving unit may be arranged at substantially the same position when viewed from the optical axis direction.

  According to the present invention, one of the actuators driven in the direction perpendicular to the optical axis becomes an operation load of the other actuator, and the electrical connection means for feeding the actuator is prevented from causing disadvantages in space, etc. It is possible to realize an image shake correction apparatus that can be downsized and a camera system including the image shake correction apparatus.

Embodiments of the present invention will be described below.
In the present embodiment, in the above-described present invention, the first driving means and the second driving means are arranged on both sides of the holding frame across the holding frame and face the fixed frame. The fixing member has a fixing member attached to the fixing frame from the opposite side of the holding frame side, and the fixing member is configured such that the pressing force to the fixing frame side can be adjusted by a biasing member, and the first driving is performed by the fixing member. In the image blur correction apparatus in which the means and the second drive means are pressed and held between the fixed frame and the holding frame and between the fixing member and the holding frame, the biasing member is connected to the fixing member. It is possible to adopt a configuration in which the fixing member is provided between one of the first driving means and the second driving means positioned between the holding frames.
Further, the biasing member is provided between the holding frame and each of the first driving means and the second driving means arranged on both sides of the holding frame with the holding frame interposed therebetween. Can be adopted. Accordingly, when the fixing member is attached to the fixing frame side, the fixing member can be used in common as a member for adjusting the pressing force with respect to the first driving means and the second driving means. At this time, the drive means of the first drive means and the second drive means can be pressed and held by substantially the same applied pressure, and the drive characteristics can be stabilized. In addition, it is possible to reduce the size of the vibration-proof unit by eliminating the trouble of separately adjusting both the applied pressures.
Further, by configuring the first driving means and the second driving means to be arranged at substantially the same position when viewed from the optical axis direction, the driving means can be arranged at positions close to each other. As a result, when considering the power supply path to the driving means, it is not necessary to take a wide wiring area, and it can be concentrated in a limited portion, and a large active space is provided at a position avoiding the first and second driving means. It is possible to improve the degree of freedom of arrangement of other parts. With the above configuration, it is possible to obtain a downsized vibration isolator.

Examples of the present invention will be described below.
[Example 1]
In Embodiment 1, the present invention is applied to configure an image blur correction apparatus.
1 to 3 are diagrams for explaining the image blur correction apparatus of the present embodiment.
FIG. 1 is an exploded perspective view showing the configuration of the image shake correction apparatus of the present embodiment, FIG. 2 is a main cross-sectional view showing the configuration of the image shake correction apparatus of the present embodiment, and FIG. 3 shows the image shake correction apparatus of the present embodiment. It is a front view which shows arrangement | positioning of main components.
1 to 3, reference numeral 1 denotes a fixed frame, 2 denotes a correction lens group, 3 denotes a holding frame that holds the correction lens group 2, 4 denotes a pressing plate, and 5 denotes a drive substrate that drives and controls the image stabilizer. 6 is a linear vibration type actuator that is driven in a yaw (hereinafter referred to as Y) direction that is perpendicular to the optical axis, and 7 is a pitch that is perpendicular to the optical axis perpendicular to the Y direction (hereinafter referred to as P). It is a linear vibration type actuator that is driven in the direction).
Reference numeral 8 denotes a biasing spring that stretches between the pressing plate 4 and the linear vibration type actuator 6 that is driven in the Y direction, and reference numeral 9 denotes a biasing spring that stretches between the pressing plate 4 and the holding frame 3.
10 is sandwiched between the fixed frame 1 and the holding frame 3, and is disposed on the ball receiving portions 1 b and 1 c of the fixed frame 1 in order to reduce friction when the holding frame 3 moves with respect to the fixed frame 1. Rolling ball.

The linear vibration type actuator 7 driven in the P direction is fixedly held in the actuator receiving portion 1a of the fixed frame 1, and the linear vibration type actuator 6 on the Y direction side sandwiches the biasing spring 8 with the actuator receiving portion 4a of the pressing plate 4. Is held by the fixed frame 1.
The holding frame 3 is sandwiched in the optical axis direction by the linear vibration type actuators 6 and 7, and the actuator is in contact with each of the subject side surface and the imaging surface side surface of the holding frame 3. Further, the biasing spring 9 and the rolling ball 10 are also sandwiched in the optical axis direction, and as a result, the holding frame 3 is held so as to be movable in the optical axis direction only for the elastic deformation of the biasing springs 8 and 9.

  Reference numerals 6a and 7a denote connection flexures for supplying electric power to the linear vibration type actuators 6 and 7, respectively, and are connected to the drive substrate 5 although the shape thereof is omitted. Note that the linear vibration type actuators 6 and 7 here are provided with a drive mechanism that generates a traveling surface wave disclosed in Japanese Patent No. 03406948 and drives a moving object. According to this, for example, by applying a driving signal to a piezoelectric element having a driving piece on the surface to excite bending motion and longitudinal vibration at the same time, the elliptical motion formed by combining these two vibrations, It can comprise so that a to-be-moved body may be driven via a drive piece.

Reference numeral 11 denotes a guide shaft that is linearly guided in the P direction with respect to the fixed frame 1 and guides the holding frame 3 in the Y direction.
12 for reading the position of the holding frame 3 in the Y direction, and 13 for reading the position of the holding frame 3 in the P direction, spot light is applied to a PSD (position detection element) (not shown) disposed on the drive substrate 5. Is fixed to the holding frame 3. In addition, 14 is a screw for fixing the drive substrate 5 and the pressing plate 4 to the fixed frame 1, and 15 is a screw for fixing the driving substrate 5 to the pressing plate 4. Reference numeral 16 denotes a roller attached to the roller seat 1d of the fixed frame 1 and a screw 17 for fixing the roller 16 in order to hold the vibration isolator as a unit in a lens barrel (not shown).
In the above configuration, the linear vibration type actuators 6 and 7 driven in the Y and P directions are pressed and urged against the holding frame 3 by the urging spring 8, and the holding frame 3 rolls with the urging spring 9. It is sandwiched by the balls 10 and is pressed and urged toward the fixed frame 1 side. Further, the guide shaft 11 is configured to be movable in the Y and P directions which are perpendicular to the optical axis without rotating with respect to the fixed frame 1 by holding the guide shaft 11.
Here, since the holding frame 3 is held in the direction of the optical axis by the two rolling balls 10 except for the linear vibration type actuators 6 and 7, the holding frame 3 moves without further tilting while further reducing the friction load. Is possible.
Further, by adjusting the tightening force when the presser plate 4 is fastened to the fixed frame 1 with the screws 14, the amount of deformation of the biasing springs 8 and 9 can be adjusted, and both the Y and P linear vibration actuators and the holding frame can be adjusted. It becomes possible to adjust the urging force between the three.

With the above configuration, since the urging force when the linear vibration type actuator is urged to the holding frame 3 can be made equal for the Y and P directions, the drive characteristics for the Y and P directions change depending on the applied pressure. The actuator can be used in an equal pressure state, and stable driving can be performed.
Further, in this embodiment, pressure is applied to the holding frame 3, but the linear vibration type actuators 6 and 7 are provided with a drive mechanism as disclosed in Japanese Patent No. 03406948 as described above. Therefore, when moving the holding frame 3 in one of the Y and P directions, the linear motion type actuator that is not instructed to move is controlled by generating a standing wave of longitudinal vibration. It is possible to prevent a load from being applied to the drive of the linear vibration type actuator that is instructed.

Next, the control of the image blur correction apparatus of the present embodiment will be described.
FIG. 4 is a block diagram for explaining the control of the image blur correction apparatus according to the present embodiment. The rotational blur detected by the angular velocity sensors 101 and 102 in the Y and P directions is processed in the microcomputer 100, and the position detection sensors 108 and 109 detect whether the correction lens group 107 has moved the necessary amount of movement. However, power is supplied to the drive circuits 103 and 104 for the linear vibration actuators so as to drive the linear vibration actuators 105 and 106 for control.

Next, a camera system provided with an image blur correction device on the lens side of the present embodiment will be described.
FIG. 5 is a block diagram showing the configuration of the camera system in the present embodiment.
In FIG. 5, 113 is a camera (camera body) in the camera system, and 114 is a zoom lens (interchangeable lens = lens 114). For the lens 114, the mechanical details are simplified.
First, the configuration on the camera 113 side will be described. Reference numeral 115 denotes an electric circuit unit in the camera 113. In the electric circuit unit 115, a light metering unit 116 for measuring the amount of light that has passed through the lens 114 and light that has passed through the lens 114 are provided. An image sensor 117 for storing the image, a distance measuring unit 118 for measuring the distance from the image sensor 117 to the subject, a shutter 119 for exposing the image sensor 117 for an appropriate time, and an in-camera CPU 120 for performing various controls in the camera. And communication means 121 for performing serial communication with the lens 114. Further, the camera 113 is also provided with a power source 122 that is forced as a power source on the lens 114 side. Next, a configuration on the lens 114 side will be described.
Reference numeral 123 denotes an in-lens memory which stores sensitivity information of the focus lens 124 with respect to the position of the variable power lens 126 and information on the amount of feed per focus rotation angle of the focus lens 124 with respect to the position of the variable power lens 126. Reference numeral 124 denotes a focus lens, 125 denotes a diaphragm, 126 denotes a variable power lens, and 127 denotes an electric circuit section in the lens 114. In the electric circuit section 127, communication means for performing serial communication with the camera 113 128, an in-lens CPU 129 that performs various controls in the lens 114, an aperture drive driver 130 for performing drive control of the aperture 125, a focus drive driver 131 for performing drive control of the focus lens 124, and the aperture An aperture driving actuator 132 for driving 125, a lens driving actuator 133 for driving the focus lens 124, an iris encoder 134 for detecting the position of the aperture 125, and a focus encoder 135 for detecting the position of the focus lens , The position of the variable magnification lens 126 Zoom encoder 136 for output, image blur correction device 137 for correcting a shake by detecting a camera shake is provided.

Next, the operation of each of these elements will be described.
The diaphragm drive actuator 132 receives the drive signal from the diaphragm drive driver 130 according to a command value from the lens CPU 129, and performs an operation of reducing the diaphragm 125 to a set position or returning it to the open state. The focus drive actuator 133 receives a drive signal from the focus drive driver 131 according to a command value from the lens CPU 129, drives the focus lens, and performs focusing.
When a zooming operation is performed by a zoom operation ring (not shown), the zoom lens 126 is driven, and the zoom encoder 136 zooms in from a wide-angle side focal length to a telephoto side focal length in a finite stage. A divided digital signal is obtained.
Further, the focus encoder 135 can obtain a digital signal obtained by dividing the focus distance from the nearest side to infinity in a finite stage. These encoders are used to obtain focal length information and focus information necessary for performing AF calculation with high accuracy in a TTL passive method that is most often used as a single-lens reflex autofocus method.
Information necessary for the autofocus calculation is read from a table in the ROM in the lens CPU 129 from the information of these encoders, and the information is transmitted to the body side that performs the autofocus calculation by a communication line.

[Example 2]
In the second embodiment, the present invention is applied to configure an image blur correction device of a different form from the first embodiment. In the first embodiment, as described above, the linear vibration actuators 6 and 7 are configured to be held by the fixed frame and the member fixed to the fixed frame. On the other hand, in this embodiment, the linear vibration type actuators 6 and 7 are indirectly sandwiched between the fixed frame and the member fixed to the fixed frame via the elastic member to hold the position of the holding frame. Configured to do.
6 and 7 are diagrams for explaining the image blur correction apparatus according to the present embodiment.
FIG. 6 is an exploded perspective view showing the configuration of the image blur correction apparatus in the present embodiment, and FIG. 7 is a main cross-sectional view showing the configuration of the image blur correction apparatus in the present embodiment.
6 and 7, reference numeral 21 denotes a fixed frame, 22 denotes a correction lens group, 23 denotes a holding frame for holding the correction lens group 22, 24 denotes a pressing plate, and 25 denotes a drive board for driving and controlling the vibration isolator.
Reference numeral 26 denotes a rectilinear vibration type actuator driven in the Y direction, and reference numeral 27 denotes a rectilinear vibration type actuator driven in the P direction.
Reference numeral 28 denotes a spring fixed to the rectilinear vibration actuator 26 driven in the Y direction, and reference numeral 38 denotes a spring fixed to the rectilinear vibration actuator 27 driven in the P direction. The rectilinear vibration actuator 26 driven in the Y and P directions. , 27 are held by the holding frame 23 via springs 28, 38.
Reference numeral 30 denotes a roll which is sandwiched between the fixed frame 1 and the holding frame 23 and is arranged on the ball receiving portion 21 b of the fixed frame 21 in order to reduce friction when the holding frame 23 moves relative to the fixed frame 21. It is a ball.

The connection flexures 26a and 27a for supplying power to the linear vibration actuators 26 and 27 are connected to the drive board 25, although the shapes thereof are omitted. The linear vibration actuators 26 and 27 here are provided with a drive mechanism as disclosed in Japanese Patent No. 03406948 as in the first embodiment.
Reference numeral 31 denotes a guide shaft that is linearly guided in the P direction with respect to the fixed frame 21 and guides the holding frame 23 in the Y direction.
Reference numeral 32 denotes a spot light on a PSD (position detection element) (not shown) disposed on the drive substrate 25 for reading the position of the holding frame 23 in the Y direction and 33 for reading the position of the holding frame 23 in the P direction. Is fixed to the holding frame 23. Reference numeral 34 denotes a screw for fixing the driving substrate 25 and the pressing plate 24 to the fixed frame 21, and reference numeral 35 denotes a screw for fixing the driving substrate 25 to the pressing plate 24. Further, reference numeral 36 denotes a roller attached to the roller seat 21d of the fixed frame 21 and a screw 37 for fixing the roller 36 in order to hold the vibration isolator as a unit in a lens barrel (not shown).

In the above configuration, the linear vibration type actuator 27 driven in the P direction is fixed and held on the surface of the holding frame 23 on the imaging surface side with the biasing spring 38 interposed therebetween, and the linear vibration type actuator 26 driven in the Y direction is biased. The holding frame 23 is fixed and held on the subject side surface with the spring 28 interposed therebetween.
Further, the linear vibration type actuator 27 driven in the P direction is positioned with respect to the holding frame 23 so as to be accommodated in the actuator holding portion 21a of the fixed frame, and the pressing plate 24 is fixed to the fixed frame 21 with screws 34 from above.
As a result, as shown in FIG. 7, the linear vibration type actuator driven in the Y and P directions held by the holding frame 23 is pressed by the fixed frame 21 and the holding plate 24 by the elastic force of the biasing springs 28 and 38. It will be arranged in the state that was done. At this time, the amount of deformation of the urging springs 28 and 38 can be adjusted by adjusting the tightening force when the presser plate 24 is fastened to the fixed frame 21 with the screw 34, and both the P and Y linear vibration type actuators and the holding force are maintained. The urging force between the frames 23 can be adjusted. As a result, the urging forces urged by the fixed frame 21 and the pressing plate 24 in the linear vibration type actuators for the Y and P directions become equal. Therefore, the actuators for the P and Y directions whose driving characteristics are changed by the applied pressure can be used in an equal pressure state, and stable driving can be performed.
As described above, also in the image shake correction apparatus of the present embodiment, the drive control is controlled by the same method as the control method described in the first embodiment.

[Example 3]
In the third embodiment, the present invention is applied to configure a camera system including an image shake correction apparatus of a different form from the first embodiment.
FIG. 8 is a block diagram showing a configuration of a camera system provided with an image shake correction apparatus in the present embodiment, and FIG. 9 is a main cross-sectional view showing a configuration of the image shake correction apparatus in the present embodiment.
In FIG. 9, 51 is a fixed frame, 52 is a holding frame for holding the image sensor 217, 54 is a pressing plate, and 55 is a drive board for driving and controlling the vibration isolator.
Reference numerals 56 and 57 denote linear vibration actuators, 58 an elastic member, 60 a rolling ball, and 61 a guide shaft.

In the first embodiment, the image blur correction device is provided on the lens side, and the image blur correction is performed by the correction lens held in the holding frame. In contrast, in this embodiment, a camera system in which the image blur correction device is provided on the camera 213 side is used.
In the camera system of the present embodiment, as shown in FIG. 8, the image shake correction device 237 is provided on the camera 213 side, and is configured to correct the shake by driving the image sensor 217 instead of the lens. The functions and operations of the components indicated by 216 to 236 excluding the vibration isolator 237 are the same as those of 116 to 136 shown in the first and second embodiments. In the image blur correction apparatus shown in FIG. 9, 51 to 62 perform the same functions and operations as 1 to 16 shown in the first embodiment.

[Example 4]
In the fourth embodiment, the present invention is applied to configure an image shake correction apparatus of a different form from the third embodiment.
FIG. 10 is a main cross-sectional view showing the configuration of the image shake correction apparatus of this embodiment.
In FIG. 10, reference numeral 71 denotes a fixed frame, 72 denotes a holding frame that holds the image sensor 317, 74 denotes a pressing plate, and 75 denotes a drive board that drives and controls the vibration isolator.
76 and 77 are linear vibration type actuators, 78 and 88 are elastic members, 80 is a rolling ball, and 81 is a guide shaft.
In the third embodiment, as described above, the linear vibration type actuators 56 and 57 are configured to be held by the fixed frame 51 and the member 54 fixed to the fixed frame. On the other hand, in this embodiment, the linear vibration type actuators 76 and 77 are indirectly sandwiched between the fixed frame 71 and the member 74 fixed to the fixed frame via the elastic members 78 and 88, and imaging is performed. The position of the holding frame 72 that holds the element 317 is held.
In the anti-vibration device 337 shown in FIG. 10, reference numerals 71 to 86 perform the same functions and operations as 51 to 62 described in the third embodiment.

In this embodiment, a linear vibration type actuator similar to the drive mechanism disclosed in Japanese Patent No. 03406948 is used, but a traveling wave is generated on the surface while being urged by pressure against the moving body. The driving mechanism used in this embodiment is not limited as long as it is a linear vibration type actuator that moves. Further, the guide shaft 81 is not limited to the one described in the embodiment, and any configuration may be used as long as the holding frame 72 is held so as not to rotate about the optical axis.
Further, although the rolling ball 80 is used to hold the holding frame 72 so as to be movable in the vertical direction with respect to the optical axis, it is not limited to this. Any component that does not cause an operating load due to movement of the holding frame 72 may be used. If the force generated by the linear vibration actuator has a margin, it is not necessary to have a rolling configuration.

1 is an exploded perspective view showing a configuration of an image shake correction apparatus in Embodiment 1 of the present invention. 1 is a main cross-sectional view showing the configuration of an image shake correction apparatus in Embodiment 1 of the present invention. 1 is a front view showing an arrangement of main components of an image shake correction apparatus in Embodiment 1 of the present invention. FIG. 3 is a block diagram illustrating control of the image blur correction apparatus according to the first embodiment of the present invention. 1 is a block diagram illustrating a configuration of a camera system including an image shake correction apparatus according to Embodiment 1 of the present invention. FIG. 6 is an exploded perspective view illustrating a configuration of an image shake correction apparatus in Embodiment 2 of the present invention. FIG. 6 is a main cross-sectional view showing a configuration of an image shake correction apparatus in Embodiment 2 of the present invention. FIG. 6 is a block diagram illustrating a configuration of a camera system including an image shake correction apparatus according to a third embodiment of the present invention. FIG. 9 is a main cross-sectional view showing a configuration of an image shake correction apparatus in Embodiment 3 of the present invention. FIG. 9 is a main cross-sectional view showing a configuration of an image shake correction apparatus in Embodiment 4 of the present invention.

Explanation of symbols

1: Fixed frame 1a: Actuator receiving portion 1b, 1c: Ball receiving portion 1d: Roller seat 2: Correction lens group 3: Holding frame 4: Holding plate 4a: Actuator receiving portion 5: Driving substrate 6: Y-direction linear vibration type actuator 7: P-direction rectilinear vibration type actuator 8, 9: Biasing spring 10: Rolling ball 11: Guide shaft 12, 13: IRED
14, 15: Screw 16: Roller 17: Screw

Claims (7)

A fixed frame and a holding frame that is supported movably with respect to the fixed frame and holds an image shake correction system are arranged so as to overlap when viewed from the optical axis direction,
First holding means for driving the holding frame in a direction perpendicular to the first optical axis with respect to the fixed frame based on an image blur correction signal, and second driving means for driving in a direction perpendicular to the second optical axis, An image shake correction apparatus for correcting shake,
The first driving means and the second driving means are disposed on both sides of the holding frame with the holding frame interposed therebetween, and are attached to the fixed frame from the opposite side of the holding frame facing the fixed frame. A fixing member, and the fixing member is configured to be capable of adjusting a pressing force toward the fixing frame by an urging member, and the first driving means and the second driving means are connected to the fixing frame and the fixing member by the fixing member. An image blur correction apparatus configured to be pressed and held between holding frames and between the fixing member and the holding frame.   The biasing member is provided between one of the first driving means and the second driving means located between the fixing member and the holding frame, and the fixing member. The image blur correction device according to claim 1.   The urging member is provided between each of the first driving means and the second driving means disposed on both sides of the holding frame with the holding frame interposed therebetween, and the holding frame. The image blur correction apparatus according to claim 1.   4. The image blur correction apparatus according to claim 1, wherein the first driving unit and the second driving unit are disposed at substantially the same position when viewed from the optical axis direction. 5.   5. The image blur correction apparatus according to claim 1, wherein the first drive unit and the second drive unit are linear vibration type motors.   A camera system having a camera body and a lens device, wherein the lens device side includes the image shake correction device according to claim 1, and a holding frame that holds the image shake correction system has an image shake correction. A camera system configured as a holding frame for holding an optical system for performing   6. A camera system having a camera body and a lens device, wherein the camera body side includes the image shake correction apparatus according to claim 1 and a holding frame that holds the image shake correction system includes an image shake correction. A camera system that is configured as a holding frame that holds an imaging device for performing the above-described operation.

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