JP3431020B2 - Fixing device and image pickup device capable of correcting camera shake using the same - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing device for fixing a driven member such as a table, which is moved in parallel on the same plane by an actuator, to an initial position when it is not used, and a camera shake correction using the fixing device. The present invention relates to an imaging device such as a camera.

[0002]

2. Description of the Related Art In an image pickup apparatus such as a camera having a camera shake correction function, a shake correction lens or an image pickup device is moved in a direction opposite to a camera shake direction orthogonal to an optical axis of the image pickup lens in order to correct the camera shake. It is driving to let you. By the way, if the camera shake correction function is canceled or the power of the camera is turned off, if the shake correction lens that is the driven member, the image sensor, or the table that holds them is free, Due to the impact or the like, a large gravity is applied to the driven member, and the driven member comes into contact with or collides with other peripheral members to be damaged, or the optical axis of the imaging optical system is displaced. Therefore, conventionally, there is provided a fixing device that returns the driven member to the initial position and fixes the driven member in the state when the camera shake correction function is canceled or the power is turned off.

In the conventional fixing device, for example, an actuator such as a motor or a solenoid is used to charge the spring, and the spring is released when the camera shake correction function is canceled or the power is turned off. The contact member is driven by the force so as to contact the driven member, and the movement of the driven member is fixed or limited.

[0004]

However, in the conventional fixing device, since the dedicated actuator and drive mechanism are used to charge the contact member against the force of the spring, the structure of the fixing device is complicated. Therefore, there is a problem that the cost is increased and it is difficult to downsize the device using the fixing device.

The present invention has been made in order to solve the problems of the above-mentioned conventional example, and it is possible to charge the contact member in a state of being biased by a spring without using a dedicated actuator. An object of the present invention is to provide an apparatus and an image pickup apparatus using the apparatus and capable of image stabilization.

[0006]

In order to achieve the above object, the fixing device of the present invention is urged by a spring so as to be movable or rotatable in a predetermined direction, and the urging force of the spring is released so that a driven part is driven. An abutting part that abuts and restricts the operation of the driven part, a locking part that holds or locks the abutting part against the biasing force of a spring, and any part of the driven part Is provided at the contact portion by moving the driven portion in any movable direction to move the contact portion against the urging force of the spring, and the locking portion. And a fixed portion that holds or locks the contact portion.

In the above structure, the abutment portion includes a first abutment member and a second abutment member biased in opposite directions by a spring, and is held or released by the engagement portion. It is preferable to sandwich the fixed portion from both sides in this state.

Further, when the driven portion is moved in the first direction of the movable directions, the first abutting member is moved against the biasing force of the spring, and the first contact member is moved in the first direction opposite to the first direction. It is preferable to move the second contact member against the biasing force of the spring when the driven portion is moved in two directions.

Further, the locking portion includes a first locking portion that holds or locks only the first contact member and a second locking portion that holds or locks only the second contact member. After releasing or holding the first contact member by the first locking portion, the first contact member contacts the second contact member and the second contact member
It is preferable to release holding or locking of the second contact member by the locking portion.

Alternatively, it is preferable that the locking portions are provided at two positions for independently holding or locking the first contact member and the second contact member, respectively.

Further, the abutting portions are orthogonal to each other.
It is preferable that two sets are provided in the direction.

Alternatively, the contact portion is biased in a direction orthogonal to any movable direction of the driven portion, and has a surface whose tip is inclined with respect to the contact surface of the driven portion. It is preferable that the fixed portion provided on the driven member including a coupling member is a concave portion that engages with the engaging member.

Further, it is preferable that the engaging portion includes a solenoid provided at any part of the abutting portion for adsorbing the attracted piece.

On the other hand, an image pickup apparatus of the present invention capable of image stabilization is provided on an image pickup lens for forming a subject image and an image forming surface of the subject image, and photoelectrically converts the subject image into predetermined image data. And holding at least one of the image pickup lens or the image pickup element,
At least any one of which is orthogonal to the optical axis of the imaging lens
A driven member that reciprocates in one direction, a drive mechanism that reciprocally drives the driven member in the direction, and a fixing device that fixes the driven member to an initial position in a handshake function released state or a power-off state And a fixing device having any one of the above configurations is used as the fixing device.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION (First Embodiment) A first embodiment of the present invention will be described. FIG. 1 is a diagram showing a configuration of an image pickup apparatus capable of image stabilization in the first embodiment,
(A) is the plane sectional view, and (b) is a rear sectional view.
Further, FIG. 2 is a perspective view showing the configuration of the fixing device in the first embodiment.

As shown in FIG. 1, an image pickup apparatus capable of image stabilization has an image pickup lens 100 for forming an image of a subject at a predetermined position, and an image pickup surface (focal plane) of the image pickup lens 100. An image pickup device 101 such as a CCD for converting light energy of an image into image data formed of a predetermined electric signal by photoelectric conversion, and an image pickup device 101 are held, and the image pickup device 101 is orthogonal to each other in an image forming plane of the image pickup lens 100. Table 110 for parallel translation in two directions (X direction and Y direction), and table 110 in X direction and Y direction.
X-actuator 121 and Y-actuator 122 for moving in parallel with each other, camera-shake sensor 120 for detecting the amount of camera-shake in the X-direction and Y-direction, and operation of table 110 fixed when the camera-shake correction function is canceled and power is turned off And a fixing device 200 for Further, a columnar boss (fixed portion) 111 is provided at the center of the back surface of the table 110 so as to project toward the fixing device 200. In this case, the image sensor 101 and the table 110 correspond to the driven part whose operation is fixed by the fixing device 200.

As shown in FIGS. 1 and 2, the fixing device 20.
0 is the first contact member 210 and the second contact member 220 that are arranged substantially symmetrically with respect to the boss 111, and the first contact member 2
A first spring 211 and a second spring 221 such as a compression coil spring for urging the first and second abutting members 220 in directions opposite to each other and in a direction of sandwiching the boss 111;
The attraction piece 230 formed of a magnetic material fixed to the contact member 210, the solenoid 240 for attracting and holding the attraction piece 230, the first contact member 210 and the second contact member 220 are respectively in the X direction. The frame 250 is slidably held by the frame 250 and the like. The bosses 251 and 252 that come into contact with the first spring 211 and the second spring 221 are provided on the frame 250 or another frame or the like that constitutes the image pickup apparatus, respectively.

As shown in FIG. 2, the first contact member 210 and the second contact member 220 each have a step portion 2 that overlaps in the axial direction of the boss 111 when the boss 111 is sandwiched therebetween.
Substantially rectangular grooves 214 and 224 are formed to fit with 13 and 223 and bosses 251 and 252. First
The spring 211 and the second spring 221 are provided inside the grooves 214 and 224, respectively, and the end surfaces of the grooves 214 and 224 of the first abutting member 210 and the second abutting member 220 are arranged so as to sandwich the boss 111, respectively. I am biased. First
End surfaces 215 and 225 of the contact member 210 and the second contact member 220 on the boss 111 side are respectively formed in a substantially arc shape.

FIG. 2 shows the first contact member 210 and the second contact member 220 as a first spring 211 and a second spring 221 respectively.
Shows a state of being charged against the urging force of. The solenoid (first locking portion) 240 is energized and attracts the suction piece 230 fixed to the first contact member 210.
The operation of the first contact member 210 by the biasing force of the spring 211 is held or locked. A locking member (second locking portion) 254 fixed to the tip of the leaf spring 253 is engaged or abutted on the stepped portion 223 of the second contact member 220, and the second spring 221 is attached. The action of the second contact member 220 due to the force is locked. The leaf spring 253 is fixed to a frame 250 (not shown) and biases the locking member 254 in a direction that interferes with the sliding surface of the second contact member 220. Further, at the end surface of the first contact member 210 on the boss 111 side,
Further, an inclined surface 216 is formed in a portion facing the locking member 254, and the first contact member 2 of the locking member 254 is formed.
An inclined surface 255 is also formed in a portion facing 10. Therefore, when the first contact member 210 moves toward the boss 111 due to the biasing force of the first spring 211, the inclined surface 216 of the first contact member 210 causes the inclined surface 216 of the locking member 254 to move.
Riding on the ground and deforming the leaf spring 253, the locking member 2
54 is retracted from the sliding surface of the second contact member 220. As a result, the holding or locking of the second contact member 220 by the locking member 254 is released.

Next, FIG. 3 shows a block configuration of the image pickup apparatus capable of correcting the camera shake. The switch is abbreviated as SW in the figure. The overall control unit 300 is a CPU, ROM, RAM
Etc., and controls the entire imaging device. A power switch 301 for switching the power on / off, a camera shake switch 302 for selecting whether to use an image stabilization mechanism, and a shutter release switch 303 for selecting whether to capture an image are connected to the overall control unit 300. Has been done. The shutter release switch 303 is, for example, a two-step switch, and includes a switch S1 which is turned on when a finger is placed on the switch button or when the switch button is pushed halfway, and a switch S2 which is turned on when the switch button is pushed all the way. including.

In addition to the recording device 310 such as a memory card recorder, the overall controller 300 includes the above-described camera shake sensor 120 and the solenoid 24 of the fixing device 200.
0, an X actuator 121 and a Y actuator 122 that drive the table 110 in the X and Y directions, an image sensor 101, and the like are connected. In addition, camera shake sensor 1
Reference numeral 20 denotes an X sensor 12 that further detects the shake amount in the X direction.
It includes a Y sensor 120Y that detects the shake amount in the 0X and Y directions.

Next, the image pickup operation using the image stabilization function of the image pickup apparatus will be described with reference to the flow chart shown in FIG. First, when the power switch 301 is turned on (step # 1), the overall control unit 300 initializes all the set values of the image pickup apparatus and prepares for image pickup (step # 3). Next, the overall control unit 300 drives the X actuator 121 of the image stabilizing device to release the operation fixing of the table 110 by the fixing device 200 (step #
5). The operation fixing release by the fixing device 200 in step # 5 will be described later.

When the operation fixing of the table 110 by the fixing device 200 is released in step # 5, the overall control unit 30
0 controls the AF sensor 120, the X actuator 121, the Y actuator 122, and the like to start camera shake correction (step # 7). Furthermore, the overall control unit 300 determines whether or not the switch S1 of the shutter release switch 303 has been turned on by the user (step # 9).

When the switch S1 is turned on (step #
9), the overall control unit 300 drives the AE (automatic exposure) mechanism (not shown) to set the aperture value and exposure time for obtaining proper exposure, and drives the AF (automatic focus adjustment) mechanism to shoot the subject. An image is formed on the image sensor 101 (step # 11). Next, the overall control unit 300 operates the switch S2 of the shutter release switch 303 by the user.
It is determined whether or not is turned on (step # 13).

When the switch S2 is turned on (step #
13 is YES), the overall control unit 300 drives the image sensor 101 to photoelectrically convert the subject image and capture the image (step # 1).
5) The signal output from the image sensor is subjected to predetermined processing and recorded as image data on a recording medium such as a memory card (step # 17). After recording the image data, the overall control unit 300 determines whether or not the power switch 301 has been turned off (step # 19), and if not turned off, the process returns to step # 9 to prepare for the next imaging.

On the other hand, when the power switch 301 is turned off (YES in step # 19), the overall control unit 300 turns off the power supply to the solenoid 240, and the fixing device 200 fixes the operation of the table 110 of the image stabilizing device. (Step # 21), the imaging operation using the camera shake correction function ends.

Next, the fixing device 20 in step # 5.
Release of the fixed operation of the table 110 by 0 will be described with reference to the flowchart shown in FIG. 5 and the operation diagrams shown in FIGS. 6 to 9. 6 to 9, (a) is a front view showing the state of the fixing device 200, and (b) is a sectional view thereof.

With the power switch 301 turned on,
As shown in FIG. 6, the attracting piece 230 is not attracted to the solenoid 240, and the first contact member 210 and the second contact member 220 have the first spring 211 and the second spring 2 respectively.
The urging force of 21 abuts on the boss 111 provided on the back surface of the table 110, and the boss 111 is sandwiched to fix or limit the operation of the table 110.

From this state, when the releasing of the fixing device in step # 5 is started, first, the overall control section 300 starts energizing the solenoid 240 (step # 51), and FIG.
As shown in (4), the X actuator 121 is driven to move the table 110 to the left side in the figure (step # 53).
When the table 110 starts moving to the left side in FIG. 7, the boss 111 moves the first contact member 210 to the left side in the drawing against the biasing force of the first spring 211. When the first contact member 210 moves to the left side and the suction piece 230 is suction-held by the solenoid 240, the table 110 and the first contact member 210.
Can no longer move to the left. Therefore, the overall control unit 300 determines whether or not the X-actuator 121 has stopped due to the suction piece 230 being sucked by the solenoid 240 (step # 55). When the X actuator 121 stops (YES in step # 55), the suction piece 230 comes into contact with the solenoid 240 and the step #
Since the solenoid 240 is energized at 51, the suction piece 2
30 is attracted and held by the solenoid 240, and the first contact member 210 is held or locked (step # 57).

Next, the overall control section 300 switches the driving direction of the X actuator 121 to the right side in the figure, and moves the table 110 to the right side in the figure (step # 59). At this time, since the attraction piece 230 is attracted and held by the solenoid 240, even if the table 110 starts to move to the right side in the drawing as shown in FIG. 8, the first contact member 210 moves to the left movement limit position. It remains stopped. On the other hand, when the table 110 starts moving to the right side in FIG.
1 is the second contact member 21 against the biasing force of the second spring 221.
Move 0 to the right in the figure. During this time, the locking member 254 is irrelevant to the second contact member 22 regardless of the biasing force of the leaf spring 253.
According to the operation of 0, the second contact member 220 relatively slides on the side surface (see (b) of FIGS. 6 to 8).

When the second contact member 220 approaches the movable limit on the right side of the second contact member 220, the locking member 254 rotates counterclockwise by the urging force of the leaf spring 253, as shown in FIG. 9B. It engages with the step portion 223 of the second contact member 220. Then, when the second contact member 220 reaches the right movable limit position, the table 110 and the second contact member 220 cannot move further to the right, so the overall control unit 30.
0 determines whether or not the X actuator 121 has stopped (step # 61). When the X actuator 121 stops (YES in step # 61), the second contact member 2
20 is locked by the locking member 254 (step # 6).
3). As a result, even when the X actuator 121 is driven to move the table 110 to the left side in the drawing again, the second contact member 220 is still locked by the locking member 254, so that the fixing device 200 can fix the table 110. The operation fixation is released (step # 65), and the table 110 can move freely within a range in which the boss 111 does not contact the first contact member 210 and the second contact member 220.

As described above, in the first embodiment of the present invention, the first contact member 210 and the second contact member 210 of the fixing device 200 are provided.
When charging the contact member 220 to a predetermined locked state against the biasing forces of the first spring 211 and the second spring 221, respectively, the X actuator 121, which constitutes the camera shake correction device, is used without using a dedicated actuator. Since it is used, it is possible to reduce the number of actuators in the entire image pickup apparatus that is an apparatus using the fixing device 200, and it is possible to simplify the structure of the fixing device 200.
Further, it is possible to downsize the image pickup device itself using the fixing device 200.

In the above description of the first embodiment, an example in which the cylindrical boss 111 is provided at the substantially central portion of the back surface of the table 110 is shown. However, the shape and position of the boss 111 and the first boss 111 on the fixing device 200 side. First contact member 210 and second contact member 2
The shape and position of 20 are not limited to this,
Other shapes and positions are possible.

(Second Embodiment) Next, a second embodiment of the present invention will be described. FIG. 10 is a perspective view showing the configuration of the fixing device according to the second embodiment. 11A and 11B are diagrams showing an operation in the second embodiment, FIG. 11A shows a state in which the table is fixed and held by the fixing device, and FIG. 11B shows a state in which the fixing device is charged against the biasing force of the spring. .

As can be seen from the respective drawings, the fixing device 400 of the second embodiment is provided in two sets in each of the X direction and the Y direction, which are the movable directions of the table 110, at a total of four places, and each part is pulled. Coil spring 401 and spring 4
The contact lever 402 is urged by 01 to contact the table 110, and a solenoid 403 that attracts and holds the vicinity of the lower end of the contact lever 402.

When the energization of each solenoid 403 shown in FIG. 11 (a) is released, each contact lever 402 rotates about the axis P by the urging force of the spring 401, and the vicinity of the upper end of the contact lever 402 is the table. It contacts the side surface of 110. Therefore, the table 110 is restrained by the contact levers 402 biased in opposite directions in the X direction and the Y direction so that the table 110 cannot easily move even if vibration or impact is applied, and the table 110 is not moved. The possibility of colliding with the member of is greatly reduced, and the possibility of failure is reduced.

Incidentally, in order to release the operation fixation of the table 110 by the fixing device according to the second embodiment, the X actuator 121 and the Y actuator are operated with the respective solenoids 403 energized, as in the case of the first embodiment. 12
2 is driven to move the table 110 to the bidirectional movable limit positions in the X and Y directions, and the contact levers 4 are moved.
02 is attracted and held by the solenoid 403 against the biasing force of the spring 401.

Further, as an application example of the second embodiment, for example, the table 110 can be moved only in the X direction while the operation of the table 110 in the Y direction is restricted without energizing the solenoid 403 provided in parallel with the Y direction. I will keep it. Then, by following the moving subject and moving the table 110 in the opposite direction, so-called panning (an image in which the moving subject image is stationary and the background is blurred) can be obtained.

(Third Embodiment) Next, a third embodiment of the present invention will be described. FIG. 12 shows a state in which the operation of the table is fixed by the fixing device according to the third embodiment, FIG.
3 shows a state where the contact member is being charged against the biasing force of the spring by the operation of the table, and FIG. 14 shows a state where the fixing device is being charged.

As can be seen from the drawings, in the fixing device 500 according to the third embodiment, the abutting member 510 is the frame 50.
1 is slidably fitted in and held in a fitting hole 502 provided in No. 1 and is biased by a compression coil spring 503 in a direction perpendicular to the back surface 114 of the table 110. The cross section of the contact member 510 orthogonal to the sliding direction is circular or rectangular (for example, square). When the cross section is circular, the contact member 5
The apex 513 of 10 is conical, and the apex 513 of the abutment member 510 is a pyramid when the cross section is rectangular. The cross section of the engaging recess 113 formed on the back surface 114 of the table 110 for engaging the abutting member 510 is similar to the cross section of the abutting member 510. A concave portion 511 for fitting with the spring 503 is formed inside the abutting member 510, and a suction piece 512 for being suction-held by the solenoid 504 is provided at the center thereof.

In the third embodiment, in order to release the operation fixation of the table 110 by the fixing device 500, as shown in FIG.
Either one or both of the actuator 121 and the Y actuator 122 (see FIG. 1) are driven to drive the table 1
It suffices to move 10 in either direction. That is,
With the movement of the table 110, the edge portion of the engaging recess 113 abuts on the slope of the apex 513 of the abutting member 510,
The contact member 510 is pushed down toward the solenoid 504 against the biasing force of the spring 503. The suction piece 512 is the solenoid 5
When it abuts against 04, it is sucked and held in that state, and the operation fixing of the table 110 by the fixing device 500 is released.

As shown in FIG. 14, the fixing device 50
Even when the operation fixing of the table 110 by 0 is released, the top 514 of the abutting member 510 has entered the inside of the engaging recess 113 of the table 110. Therefore, in the table 110, the edge of the engaging concave portion 113 has the contact member 5
It is possible to move within a range where it does not contact the top portion 513 of 10.

As described above, according to the third embodiment, the table 11 is constituted by one contact member 510, the solenoid 504 and the like.
0 movement can be fixed and the fixing device 50
When releasing the fixed operation of the table 110 by 0, either the X actuator 121 or the Y actuator 122 may be driven, and at the same time when the fixed operation is released, it is possible to shift to the next operation such as camera shake correction. Further, the top 513 of the contact member 510 has a conical shape or a quadrangular pyramid shape, and the engaging concave portion 1 provided on the table 110.
Since the cross-sectional shape of 13 is similar to the cross-sectional shape of the apex 513 of the abutting member 510, the table 110, which is the driven member, is positioned at a position where the apex 514 of the abutting member faces the center of the engaging recess 113. Can be fixed.

(Other Application Examples) In each of the above embodiments, the table 110 is used as the driven member in the X direction and the Y direction.
Although the case of performing parallel movement in the direction has been described, it goes without saying that the fixing device of the present invention is not limited to this and can be applied to the case of rotating a driven member around a predetermined axis. .

In the first embodiment, the first abutting member 210 and the second abutting member 220 are configured to move in parallel in the X direction, but the present invention is not limited to this, and at least the driven member. It suffices if the operation of the driven member can be fixed or limited by contacting with a fixed portion such as the boss 111 provided on any part of the table 110. For example, the first abutting portion 210 and the second abutting portion 220 are configured to be rotatable about a predetermined axis provided on the frame 25, and are biased in a direction in which the fixed portion is clamped by a torsion spring or the like. You may.

Further, in each of the above-mentioned embodiments, the attraction piece and the solenoid are used as the locking portion for holding or locking the contact member, but the invention is not limited to this, and the locking portion may be, for example, It is rotatably urged in a direction to lock the contact member by a torsion spring, a tension coil spring, or the like, and is engaged with a part of the contact member to interlock with a locking lever and an openable lens cover or the like. It may be configured by a release lever or the like that is driven to release the lock of the lock lever when the lens cover is closed.

Furthermore, in the image pickup apparatus capable of image stabilization in the above embodiment, the image pickup element 101 is set to the table 110.
The image pickup device 101 is held above and is configured to be moved in parallel in a direction orthogonal to the optical axis L of the image pickup lens 100, but the image pickup apparatus of the present invention capable of image stabilization is not limited to this. The entire image pickup lens or a part of the lenses forming the image pickup lens may be fixed to a table or the like and moved in parallel in a direction orthogonal to the optical axis thereof.

[0048]

As described above, according to the fixing device of the present invention, the spring is biased so as to be movable or rotatable in the predetermined direction, and the biasing force of the spring is released to contact the driven portion, An abutting part that limits the operation of the driven part, a locking part that holds or locks the abutting part in a state of resisting the urging force of a spring, and a contacting part that is provided at any part of the driven part. ,
By moving the driven part in any movable direction, the driven part is brought into contact with the abutting part to move the abutting part against the biasing force of the spring, and the abutting part makes the abutting contact. Since it has a fixed part for holding or locking the part,
Drive the driven member without using a dedicated actuator to charge the contact portion for fixing the operation of the driven member to the state of being biased by the spring and locked by the locking portion. Since the driving force of the actuator is used, the number of actuators can be reduced and the structure of the fixing device can be simplified. Further, it is possible to downsize a device using this fixing device. In addition, in the case where each of the above parts is a single member,
Including the case of a part of a single member and the case of being composed of two or more members.

The abutting portion includes a first abutting member and a second abutting member biased in opposite directions by a spring, and is held or released by the engaging portion in a released state. By arranging the fixed portion to be sandwiched from both sides, the driven member can be firmly held or locked even when the driven member has a large mass.

Further, when the driven portion is moved in the first direction of the movable directions, the first contact member is moved against the biasing force of the spring, and the first contact member is moved in the first direction opposite to the first direction. Two
By moving the second contact member against the biasing force of the spring when the driven portion is moved in the direction, the charging operation of the contact portion by the driven member is simplified and
The movable range of the driven member is limited by the locking positions of the first contact member and the second contact member, and it is possible to omit the stopper of the driven member.

Further, the locking portion includes a first locking portion that holds or locks only the first contact member and a second locking portion that holds or locks only the second contact member. After releasing or holding the first contact member by the first locking portion, the first contact member contacts the second contact member and the second contact member
Engagement biased by a spring or the like so as to interfere with the sliding portion of the second contact member by releasing or holding the second contact member by the lock portion. Since it can be configured with claws or the like, the configuration of the fixing device can be simplified.

Alternatively, the number of locking portions is increased by providing the locking portions at two positions so as to hold or lock the first contact member and the second contact member independently of each other. The structure of the first contact member and the second contact member can be simplified.

Further, the abutting portions are arranged so as to be orthogonal to each other.
By providing two sets in the direction, it is possible to fix the operation of the XY table that is movable in two directions orthogonal to each other as the driven member.

Alternatively, the contact portion is biased in a direction orthogonal to any movable direction of the driven portion, and the tip has a surface inclined with respect to the contact surface of the driven portion. The fixed portion provided on the driven member including the coupling member is configured to be a concave portion that engages with the engaging member, so that the abutting portion forms one of the engaging member and the engaging concave portion. It becomes possible to fix a two-dimensional operation corresponding to the cross-sectional shape of the fitting portion.

Further, by constructing the engaging portion so as to include a solenoid provided at any part of the abutting portion for adsorbing the attracted piece, for example, a device using this fixing device. The moment the power source is turned off, the holding or locking of the contact portion by the locking portion is released, and the operation of the driven member can be fixed.

On the other hand, an image pickup apparatus of the present invention capable of camera shake correction is provided on an image pickup lens for forming a subject image and an image forming surface of the subject image, and converts the subject image into predetermined image data by photoelectric conversion. And holding at least one of the image pickup lens or the image pickup element,
At least any one of which is orthogonal to the optical axis of the imaging lens
A driven member that reciprocates in one direction, a drive mechanism that reciprocally drives the driven member in the direction, and a fixing device that fixes the driven member to an initial position in a handshake function released state or a power-off state Since the fixing device having any one of the above configurations is used as the fixing device, the driven member is fixed by any one of the fixing devices when the image stabilization function is released, and the relative distance between the imaging lens and the image pickup element is increased. Since the positional relationship is fixed, it can be used as a normal image pickup device. Further, when the power is off, the whole or a part of the correction lens of the image pickup lens held by the driven member, or the image pickup element is fixed, and even if vibration or shock is applied during carrying, these members are not affected. It is much less likely to move easily and less likely to fail.

[Brief description of drawings]

1A and 1B are diagrams showing a configuration of an image pickup apparatus capable of image stabilization according to a first embodiment of the present invention, in which FIG. 1A is a plan sectional view thereof, and FIG.

FIG. 2 is a perspective view showing a configuration of a fixing device in the first embodiment.

FIG. 3 is a diagram showing a block configuration of an image pickup apparatus capable of camera shake correction in the first embodiment.

FIG. 4 is a flowchart showing an image pickup operation using the image stabilization function of the image pickup apparatus according to the first embodiment.

FIG. 5 is step # 5 in the flowchart of FIG.
3 is a flowchart showing a subroutine of.

FIG. 6 is a view showing an operation of the fixing device in the first embodiment, (a) is a front view showing a state of the fixing device,
(B) is the sectional view.

FIG. 7 is a diagram showing an operation of the fixing device in the first embodiment.

FIG. 8 is a diagram showing an operation of the fixing device in the first embodiment.

FIG. 9 is a diagram showing an operation of the fixing device in the first embodiment.

FIG. 10 is a perspective view showing a configuration of a fixing device according to a second embodiment of the present invention.

FIG. 11 is a view showing an operation of the fixing device of the second embodiment, (a) shows a state in which the table is fixed,
(B) shows a fixed release state.

FIG. 12 is a cross-sectional view showing the configuration of the fixing device according to the third embodiment of the present invention, showing a state in which the operation of the table is fixed.

FIG. 13 is a diagram showing a state where the table operation fixing by the fixing device of the third embodiment is released.

FIG. 14 is a view showing a state in which the operation fixing of the table by the fixing device of the third embodiment is released.

[Explanation of symbols]

100: Imaging lens 101: Image sensor 110: Table 111: Boss 113: Engagement recess 114: back 120: Shake sensor 120X: X sensor 120Y: Y sensor 121: X actuator 122: Y actuator 200: Fixing device 210: First contact member 211: First spring 213: stepped portion 214: groove 215: end face 216: inclined surface 220: Second contact member 221: Second spring 223: Step portion 224: groove 230: adsorption piece 240: Solenoid 250: Frame 251: Boss 252: Boss 253: leaf spring 254: Locking member 255: inclined surface 400: Fixing device 401: Spring 402: Abutment lever 403: Solenoid 500: Fixing device 501: Frame 502: Mating hole 504: Solenoid 510: Abutting member 511: concave portion 512: adsorption piece 513: Summit 514: Summit

Claims (9)

(57) [Claims] 1. A contact portion that is biased by a spring so as to be movable or rotatable in a predetermined direction, contacts the driven portion by releasing the biasing force of the spring, and restricts the operation of the driven portion.
A locking portion that holds or locks the abutting portion against the urging force of a spring and a portion that is provided at any part of the driven portion and moves the driven portion in any movable direction. And a fixed portion for holding or locking the abutting portion by the locking portion, by contacting the abutting portion to move the abutting portion against the biasing force of the spring. A fixing device characterized by: 2. The abutting portion includes a first abutting member and a second abutting member biased in opposite directions by a spring, and is retained or unlocked by the locking portion. The fixing device according to claim 1, wherein the fixed portion is clamped from both sides. 3. The first contact member is moved against the urging force of a spring when the driven portion is moved in a first direction of the movable directions, and the first contact member is moved in a first direction opposite to the first direction. 3. The second contact member is moved against the biasing force of a spring when the driven portion is moved in two directions.
Fixing device described. 4. The locking portion includes a first locking portion that holds or locks only the first contact member, and a second locking portion that holds or locks only the second contact member. After releasing or holding the first contact member by the first locking portion,
The fixing device according to claim 2 or 3, wherein an abutting member abuts the second abutting member to release holding or locking of the second abutting member by the second locking portion. 5. The locking portion is provided at two locations so as to independently hold or lock the first contact member and the second contact member, respectively. Two
Alternatively, the fixing device according to item 3. 6. The fixing device according to claim 1, wherein the contact portion is provided in two sets in two directions orthogonal to each other. 7. The engagement portion is biased in a direction orthogonal to any movable direction of the driven portion, and has a surface whose tip is inclined with respect to the contact surface of the driven portion. 2. A fixed member including a coupling member, wherein the fixed portion provided on the driven member is a recess that engages with the engaging member.
Fixing device described. 8. The locking portion includes a solenoid provided at any part of the abutting portion for adsorbing a piece to be attracted, according to any one of claims 1 to 7. Fixing device. 9. An imaging lens for forming a subject image, an imaging element for converting the subject image into predetermined image data by photoelectric conversion provided on an imaging surface of the subject image, and at least one of the imaging lens. And a driven member that holds either the image pickup element or the image pickup element and is reciprocally moved in at least one direction orthogonal to the optical axis of the image pickup lens; and a driven member that reciprocates in the direction. A fixing device having a driving mechanism and a fixing device for fixing the driven member to an initial position in a hand-shake function released state or a power-off state, and the fixing device having the configuration according to claim 1 is used as the fixing device. An image pickup device capable of image stabilization, which is characterized in that