JP3461383B2 - Camera shake correction device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera shake correction device having a function of driving all or part of an optical system and a photographing system in order to correct or prevent deterioration of image quality due to vibration such as camera shake. Is.

[0002]

2. Description of the Related Art Conventionally, many camera devices have been proposed for correcting camera shake by moving a part or whole of an optical system and a photographing system. The movable range of the camera shake correction means and the camera shake correction optical system is limited to a certain range due to the size of the photographing apparatus and the image quality of the correction optical system. Then, in order to effectively use this limited correctable range, the camera shake correction optical means is driven by taking into consideration the amount of movement that gradually returns the camera shake correction optical means to the center point of the correction range during camera shake correction. Video cameras that do are known.

For example, in a camera, Japanese Patent Laid-Open No. 1-13011
Japanese Laid-Open Patent Publication No. 26-26 discloses a technique of driving an actuator to the origin of an operation range before starting exposure. Further, in this Japanese Laid-Open Patent Publication No. 1-130126, the origin return drive during the AF (autofocus) operation of the camera is suppressed, and A
It is also described that F malfunctions are prevented. Further, Japanese Patent Application Laid-Open No. 3-121435 discloses a technique of driving the actuator to the origin after the end of driving for camera shake correction.

[0004]

By the way, in a device such as a video camera for smoothing the connection condition of each frame and reducing the blur for a long time, a very slow return-to-origin operation is performed. Since it does not feel like, and a large vibration is dealt with suddenly, it is effective to constantly pull back the blur correction optical system in the correction range direction.

However, in the case of reducing the blurring within one frame like a still camera, such a method cannot completely eliminate the blurring, which is a satisfactory method for preventing blurring. The performance could not be secured, and it was unavoidable that it was not suitable for still cameras.

In the method disclosed in Japanese Patent Laid-Open No. 1-130126, an additional time is required from the release operation to the actual exposure because the centering operation is performed before photographing. Therefore, there is a possibility that the photo opportunity will be missed.

Further, in the case of the above-mentioned Japanese Patent Laid-Open No. 3-121435, instead of not missing a photo opportunity, a large vibration may be applied until the next camera shake preventing operation, and the image may be deviated from the origin.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a camera shake compensating device in which it is difficult to miss a shutter chance and the compensation range can be effectively used.

[0009]

SUMMARY OF THE INVENTION That is, the present invention provides a blur correction member including a blur correction member driven within a predetermined movable range having a neutral point in order to optically correct an image blur on an exposure surface. Means, a centering means for moving the blur correction member to the neutral point, a centering prohibiting portion for prohibiting centering execution by the centering means, and a focusing means for adjusting the focus of the photographing optical system , In the continuous shooting mode, the centering means described above is used.
Centering before performing focus adjustment by the focusing means.
And the operation of the blur correction means after the focus adjustment is performed.
Start the first exposure of continuous shooting, and
With the exposure after the first time, the image stabilization by the above image stabilization means
When to perform, for the execution of the centering by the centering means had to be prohibited by the centering prohibition unit, characterized in that.

Further, the present invention optically eliminates image blur on the exposure surface.
Within a predetermined movable range with a neutral point to correct
Blur correction means including a blur correction member driven by
Centering for moving the image stabilization member to the neutral point
Means and centering execution by the above centering means
And a centering prohibition unit that prohibits the continuous shooting mode.
In the case of a card, the above centering is performed before the first exposure for continuous shooting.
Centering by means of each means, and each shooting of the above continuous shooting
Check the exposure time every time, and the exposure time
If it is shorter than the required predetermined value,
Shake correction is not performed, and the exposure time must be corrected.
If it is longer than the required predetermined value, use the above-mentioned shake correction
Perform blur correction, and use the second and subsequent exposures of the continuous shooting
When performing image stabilization using the image stabilization means
For performing centering by the above centering means.
Regarding the centering prohibition section above,
It is characterized by Furthermore, this invention is
A neutral point to optically correct the image blur of
Blurring that includes a shake correction member that is driven within a fixed movable range
Move the correction means and the shake correction member to the neutral point.
Centering means and the centering means
Centering prohibition section that prohibits execution of
If it is equipped and is not in continuous shooting mode, image stabilization is performed.
When the mirror goes down after exposure,
Centering by the above centering means
Image stabilization in continuous shooting mode.
When the mirror goes down for each exposure during continuous shooting,
The centering prohibition section prohibits the above centering means.
When the mirror is down at the end of continuous shooting, the mirror
The above centering should be performed at the same time
It is characterized by that.

[0011]

In the camera shake correction apparatus of the present invention,
In the continuous shooting mode, the centering means
Before the focus adjustment by the focusing means is performed.
After the focus adjustment is performed, the operation of the blur correction means
The first exposure is made when the continuous shooting is started and
Image stabilization by the above image stabilization means in the second and subsequent exposures
If the centering means is used,
The centering prohibition section above
Is prohibited.

The camera shake correction apparatus of the present invention is also provided.
In the continuous shooting mode, the
Centering is performed by the centering means,
Examine the exposure time for each shooting of continuous shooting, and
If the camera shake is shorter than the specified value that requires image stabilization,
The image stabilization is not performed by the correction means, and the exposure time is
If the image stabilization is longer than the required value,
Image stabilization is performed by the correct means, and the continuous shooting is performed twice.
With the exposure after the eyes, the image stabilization is performed by the image stabilization means.
When using the centering means
The centering prohibition section
prohibited. Furthermore, in the camera shake correction apparatus of the present invention,
Therefore, if it is not in continuous shooting mode, image stabilization is
When the mirror goes down after exposure,
Centering by the above centering means
Image stabilization in continuous shooting mode.
When the mirror goes down for each exposure during continuous shooting,
The above centering means is prohibited by the centering prohibition section.
When the mirror is stopped at the end of continuous shooting, the mirror
The centering is performed at the same time as the opening.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a first basic configuration example of a camera shake correction device of the present invention.

In FIG. 1 (a), the camera shake correction apparatus of the camera has a camera shake correction unit 1 for correcting the camera shake by moving an image on a film and a position of the camera shake correction unit 1 at a predetermined position. Centering part 2 of the image stabilization system that is initialized to
And a centering signal generator 3 for outputting a centering signal for causing the centering unit 2 to perform centering.
And a timing control unit 4. As the timing control unit 4, here, the film running unit 5 is used.
It has a configuration having. Then, at the film running timing, the film running unit 5 outputs an instruction signal so that the centering signal generator 3 generates the centering signal.

The timing controller 4 is also shown in FIG.
It can also be configured as shown in (b) to (f). That is, as shown in FIG. 1B, the timing control section 4 may be composed of an exposure end signal section 6 in which the centering signal generation section 3 generates a centering signal when the exposure of the exposure apparatus is completed.

Further, as shown in FIG. 1C, the timing control section 4 may be composed of a large shake detection section 7 in which the centering signal generation section 3 generates a centering signal at the time of detecting a large shake.

Further, the timing control section 4 is shown in FIG.
As shown in FIG. 3, when the deviation from the origin of the blur correction unit 1 is detected except during the blur correction or other than the centering operation, the centering signal generator 3 generates a centering signal in the correction optical system position detector 8. It can also be configured.

FIG. 1E shows the timing control unit 4 described above.
Is an example in which the centering signal generation unit 3 is configured by a blurring mode setting unit 9 that generates a centering signal in accordance with at least one of setting to a blurring prevention mode and leaving from the blurring prevention mode. is there.

FIG. 1 (f) is a power supply state management in which the centering signal generator 3 generates a centering signal in response to a change in the power supply management state such as power-on, transition to standby, return from standby, etc. 3 shows an example in which the timing control unit 4 is configured by the unit 10.

The exposure end signal section 6 is shown in FIG.
As shown in (g), it may be configured to include a quick return mirror restoration prohibiting section 6a that outputs a signal that prohibits the quick return mirror (not shown) from returning to the optical path until the centering is completed.

Further, the film running section 5 may be constituted by means for generating a signal corresponding to the sequence signal generating section for the film running section 5. Further, it may be constituted by means for generating a signal by the actual traveling of the film by the film traveling unit 5.

The camera shake correction apparatus having the correction optical system position detection unit 8 or the shake mode setting unit 9 may be configured to output a centering signal after the shake correction is completed.

Further, the centering signal generator 3 is
The centering signal may be output at a timing when the F function does not operate effectively. Figure 2
It is the block diagram which showed the 2nd basic structural example of the camera-shake correction apparatus of this invention.

This camera shake correction apparatus is a camera shake correction unit 1 for correcting a camera shake by moving an image on a film.
And a centering unit 2 of a camera shake correction system that initializes the position of the shake correction unit 1 to a predetermined position, and a centering signal generation unit 3 that outputs a centering signal that causes the centering unit 2 to perform centering. Composed. The centering signal generator 3 further includes a centering prohibition unit 11 that prohibits output of the centering signal under a predetermined condition.

The predetermined conditions for prohibiting the centering by the centering prohibiting section 11 are, for example, the following conditions. That is, a condition for prohibiting the output of the centering signal when the shake correction unit 1 is within a predetermined correction range before the centering signal is output, a condition for suppressing the output of the centering signal when the shake correction mode is not set, When the continuous shooting mode is set, the condition is within a predetermined time after the exposure is finished, the condition between the exposure when the continuous shooting mode is set and the exposure of the next frame, and the output of the centering signal after the AF lock is suppressed. Conditions, conditions to suppress the output of the centering signal after AE lock, when the film is not loaded,
Conditions when proper exposure to the film is not possible, such as when the back cover or film cover is open, or when shooting is not possible due to a malfunction of a function other than image stabilization found. The condition is that the output of the centering signal is suppressed so that centering is not performed before or after the exposure when the exposure is performed in the exposure mode in which the camera shake correction is not performed. Under any of these conditions, the centering prohibition unit 11 prohibits the output of the centering signal.

Further, as a condition for prohibiting the centering, there is a condition related to lack of power supply capability. The camera is equipped with an actuator for hoisting and rewinding, an actuator for moving an optical group for zooming and AF, and an actuator for charging a shutter and opening and closing a diaphragm. Motors are usually used for these actuators, but in order to drive the motors at the same time, a battery power source may be insufficient in power supply capability. Also, when power is supplied to the strobe device, the ability to supply power to the other parts is reduced.

In order to effectively operate the actuators within the limited power supply capacity, a method of supplying power to some actuators in a time-division manner can be considered. Therefore, in the present invention, as shown in FIG. 35, by using the other actuator operation signal generation section 91, the centering prohibition section 11 prohibits centering while the other actuator 92 is operating or the strobe device 93 is being charged. To provide a device.

Further, when the simultaneous driving cannot be sufficiently performed because the battery is exhausted according to the power supply capacity, FIG.
As shown in FIG.
There is also provided a device for performing centering by detecting the value by using, and prohibiting centering by the centering prohibiting unit 11 and permitting centering after the operation of other actuators is completed.

On the contrary, as shown in FIG. 37, while the centering unit 2 is centering the shake correction unit 1, a simultaneous drive prohibition signal for prohibiting the operation of other actuators and strobe charge is output. Alternatively, the simultaneous drive prohibition signal generating section 95 may be used.

The camera shake correction apparatus of the second basic configuration shown in FIG. 2 can be used in combination with the apparatus of the first basic configuration example shown in FIG. Next, a third basic configuration example of the camera shake correction apparatus of the present invention will be described.

FIG. 3 is a block diagram showing a third basic configuration example of the camera shake correction apparatus of the present invention. This is a modification of the second basic configuration example. This camera shake correction device includes a shake correction unit 1 that corrects a shake by moving an image on a film, and a shake correction system centering unit 2 that initializes the position of the shake correction unit 1 to a predetermined position. A centering signal generation unit 3 that outputs a centering signal that causes the centering unit 2 to perform centering, a centering prohibition unit 11 that suppresses the output of the centering signal by the centering signal generation unit 3, and the above centering prohibition under a predetermined condition. Centering prohibition suppressing unit 1 for suppressing the operation of the unit 11
2 and.

The conditions under which the centering prohibition suppressing section 12 operates include, for example, in a camera system in which the lens can be exchanged, has an automatic focus adjustment (AF) function, and has a camera shake correction device, the centering prohibition section 11 is set to the AF mode. This is a case where the output of the centering signal is suppressed during the operation of the function. At this time, when the AF lens is not attached, the operation of the centering prohibition unit 11 can be suppressed.

In addition, similarly, in the camera system in which the lenses can be exchanged and which has an automatic focus adjustment (AF) function and an image stabilization device, the centering prohibition unit 11
Can suppress the output of the centering signal during the operation of the AF function, and can suppress the operation of the centering prohibiting unit 11 when the manual focus mode is set.

Further, the lens is replaceable and has an automatic focus adjustment (AF) function, so that the photographing lens is housed in the main body so as to make the camera portable when no further photographing is made, that is, a so-called collapsed state. In a camera system having a camera shake compensating device capable of performing the image stabilization, when the centering prohibition unit 11 suppresses the output of the centering signal during the operation of the AF function, the operation of the centering prohibition unit 11 is restored during the recovery from the collapsed state. Can be configured to suppress.

Next, a fourth basic configuration example of the present invention will be described with reference to FIG. In FIG. 4, a camera shake correction apparatus includes a camera shake correction unit 1 that corrects a camera shake by moving an image on a film, and a camera shake correction system that initializes the position of the camera shake correction unit 1 to a predetermined position. Centering part 2
And a centering signal generator 3 for outputting a centering signal for causing the centering unit 2 to perform centering.
And is configured. In addition, the camera shake correction device is a camera having a forced centering signal generator 13 for forcibly generating a centering signal in the centering signal generator 3.

The forced centering signal generator 13 is
It can be configured to operate by operating a predetermined operation button or the like. The forced centering signal generator 13 can also be configured to operate by multiple pressing of predetermined operation buttons.

Further, the forced centering signal generator 13
Is for canceling the settings of various operations set on the camera by the photographer's operation, etc. and resetting them to convenient settings under general conditions, that is, when operating the operation button to instruct so-called mode reset operation. Can be configured to operate. In this case, it is of course possible to apply the present invention even to a camera that performs a mode reset operation by multiple pressing of a predetermined operation button.

The forced centering signal generator 1 is also provided.
3 can also be configured to operate when the camera shake correction selection button that allows the user to select shooting by camera shake correction is operated simultaneously with the release operation.

Further, the forced centering signal generator 13
Can also be configured to work if it discovers a failure that renders the image stabilization feature impossible. In addition, the centering operation by the forced centering signal generator 13
Depending on the state of the camera, there may be a centering mode in which centering operation is not performed. This mode may be set by the photographer's instruction operation, or if the camera does not operate normally when the power is low, the film is not attached, the interchangeable lens is not attached, etc. It is also possible to set the mode automatically.

FIG. 5 is a block diagram showing a fifth basic configuration example of the present invention. The camera shake correction apparatus according to the fifth basic configuration includes a shake correction unit 1 that corrects a shake by moving an image on a film, and the shake correction unit 1
Camera shake correction system centering unit 2 for initializing the position of the above position to a predetermined position, TTLAF (autofocus) unit 15 by TTL, and TTLAF unit 15 during the shake correction operation.
TTLAF sensor prohibition unit 14 for prohibiting the use of other sensors
Composed of and.

FIG. 6 is a block diagram showing a sixth basic configuration example of the present invention. A camera shake correction apparatus according to a sixth basic configuration example includes a shake correction unit 1 that corrects a shake by moving an image on a film, and a shake correction unit that initializes the position of the shake correction unit 1 to a predetermined position. System centering section 2, active AF section 16 of an external light type having an optical path other than a photographing lens, and centering signal generation for outputting a centering signal for causing centering section 2 to perform centering during operation of active AF section 16. And part 3.

In this case, the camera shake correction device is
It may also be composed of a blur correction unit 1, a centering unit 2, and an AF unit (not shown) of an external light system that operates while the centering unit 2 is operating.

FIG. 7 is a block diagram showing a seventh basic configuration example of the present invention. A camera shake correction apparatus includes a shake correction unit 1 that corrects a shake by moving an image on a film, a shake correction system centering unit 2 that initializes the position of the shake correction unit 1 to a predetermined position, and The centering unit 2 has a centering signal generator 3 which outputs a centering signal for causing the centering unit 2 to perform centering. Further, the pre-flash signal output unit 17 is provided so that the centering signal generator 3, which operates the centering unit 2 during pre-flash for reducing the occurrence of red-eye during flash photography, generates a centering signal. ing.

FIG. 8 is a block diagram showing an eighth basic configuration example of the present invention. A camera shake correction apparatus according to an eighth basic configuration example includes a shake correction unit 1 that corrects a shake by moving an image on a film, and a shake correction unit that initializes the position of the shake correction unit 1 to a predetermined position. A system centering unit 2, a centering signal generation unit 3 for outputting a centering signal for causing the centering unit 2 to perform centering, and an exposure operation mode for both an exposure procedure for performing centering and an exposure procedure for not performing centering are provided. And a centering operation selection unit 18 for selecting any one of them.

By the way, the blur correction unit 1 may be configured to detect camera shake of the camera and correct the movement of the image on the film based on the detected camera shake information. In this case, the blur correction unit 1 is configured as shown in FIG.

That is, in FIG. 9 (a), the blur correction unit 1 detects the information on the movement of the image due to the vibration of the camera and the blur detection unit 1a so as to cancel the movement of the image on the film due to the blur. Shake correction signal generator 1b for moving, and shake correction signal generator 1b
The camera shake correction actuator 1c for moving the image based on the signal and the camera shake correction optical system 1d for correcting the camera shake by driving the camera shake correction actuator 1c. The centering unit 2 returns the position of the camera shake correction optical system 1d to a predetermined origin position by using the camera shake correction actuator 1c.

As the camera shake detection unit 1a, camera shake such as known vibration gyro-type angular velocity sensor or mechanical / physical vibration of a camera such as an acceleration / angular acceleration sensor using a piezoelectric element is used by using the focal length information. There may be considered a method of obtaining image movement information by means of a method, a method of detecting movement of a subject image on an image sensor such as a CCD as a so-called image motion vector from a time series change of an image signal, and the like.

Further, the blur correction unit 1 may be constructed so as to reduce the movement of the image without detecting the camera shake. In this case, a vibration damping structure using a spring and a damper may be used, but as shown in FIG.
May be configured as follows.

That is, in FIG. 9 (b), the blur correction unit 1 includes an inertial vibration damping unit 1e for fixing the space using the inertial force of an inertial pendulum or a spinning gyro, and a main lens barrel separation unit 1f. , Lens barrel portion 1g. Then, the inertial vibration damping unit 1e is connected to the lens barrel unit 1g, and the lens barrel unit 1g is configured to be fixed in the space against the vibration of the camera body to correct the shake. In this case, in order to make the movement of the lens barrel for camera shake correction with respect to the camera body small and effective, the exposure is performed when the movement of the lens barrel becomes small by separating the camera body and the lens barrel portion 1g prior to the exposure. Just go. Therefore, the main body barrel separating portion 1f for separating the body barrel portion 1g from the camera body is connected to the body barrel portion 1g.

Further, in this case, the centering portion 2 drives the centering actuator 2a for returning the lens barrel portion 1g to the original position, and at the same time, the centering portion 2f is used to perform centering, so that the lens barrel can be centered. 1g part
Free from the camera body.

Next, a specific configuration example of the present invention will be described. FIG. 10 is a diagram showing an example in which the camera shake correction device of the present invention is applied to a so-called single-lens reflex camera, and FIG. 11 is a diagram showing x given to the camera,
It is a figure shown about three axes of y and z.

In FIG. 10, inside the camera body 20,
The taking lens 21, the parallel glass plate 22, the quick return mirror 23, the screen 24, the finder optical system 25, the shutter device 26, the film 27, and the electrical connection portion 28 configured by the flexible substrate to the camera. An electronic circuit section 29 is provided for electrically controlling the operation of. A microcomputer (CPU) 30 for controlling the operation sequence of the camera is installed in the electronic circuit section 29. Furthermore, the camera body 2
Between the back side of the film surface in 0 (the negative side of the z-axis) and the back side of the camera, a camera shake detection unit 1a for measuring and detecting camera shake during shooting of the camera is provided.

At the lowered position (23a) of the quick return mirror 23, the subject image that has passed through the taking lens 21 is reflected upward by 90 degrees by the quick return mirror 23 and is formed on the screen 24. The photographer can observe the subject image through the finder optical system 25. And when shooting, quick return mirror 2
3 is moved to the position of 23b, and the subject image advances in the direction of the shutter device 26 as it is. At this time, the shutter device 2
6 opens the shutter curtain and is exposed to the film 27, so that a subject image is photographed.

Further, between the taking lens 21 and the quick return mirror 23, a motor 31 which is a coreless motor as a camera shake correction actuator 1c and a deceleration transmission section 32, and a camera shake correction optical system tilted by the rotational driving of the motor 32 ( A shake correction unit 1 including a parallel glass plate 22 is installed.

The parallel glass plate 22 serves as a camera shake correction optical system 1d that shifts the optical axis parallel to the optical axis as an optical system for camera shake correction. This parallel glass plate 2
The operation of 2 will be briefly described. When the parallel plate glass 22 is inclined by θ from the position perpendicular to the optical axis to the position shown by the dotted line in the figure, the rays of light are, on the front surface and the rear surface of the parallel glass plate 22, The light beams are refracted in the opposite directions by the same angle to shift the optical axes in parallel. By utilizing this effect, the image is moved in a direction in which it is canceled in accordance with the movement of the image due to the hand movement, and the movement of the image and the deterioration of the image due to the movement are corrected and prevented.

12 (a) and 12 (b) are diagrams showing the detailed arrangement of the camera shake detection section 1a. Camera body 2
On the back surface of 0, a grip portion 33 protruding from the back surface of the camera is provided in order to improve the holding property of the camera. The camera shake detection unit 1a is provided in the grip portion 33.

The camera shake detection unit 1a is a vibration speed sensor for detecting camera shake vibration as the speed of mechanical vibration, and more specifically, the speed of rotational vibration as disclosed in Japanese Patent Laid-Open No. 2-51066. Is a vibration gyro that is a so-called vibration type angular velocity sensor.

This vibrating gyro outputs the rotational speed due to camera shake of the photographing device. The camera shake detection unit 1a including a vibration gyro includes a y-axis rotation angular velocity sensor 34x that detects the rotational speed of the camera about the y-axis that is connected to the left-right longitudinal (x-axis) shake of the screen, and the vertical direction (y-axis) of the screen. X) Detecting the rotation speed around the x-axis that leads to the blur
It is composed of two vibration gyros of the axial rotation angular velocity sensor 34y and an angular velocity sensor driving / signal processing circuit 35.
The signal of the angular velocity sensor is sent from the angular velocity sensor driving / signal processing circuit 35 through the electrical connection portion 28 to the electronic circuit portion 29.
Is supplied to. In addition, the power supply to the camera shake detection unit 1a
This is done via this electrical connection 28.

13 to 15 show the motor 3 of the image stabilization actuator 1c for driving the parallel glass plate 22.
1 and details of the deceleration transmission unit 32. The motor 31 and the deceleration transmission mechanism 32x are a motor 31x and a deceleration transmission mechanism 32x for rotating the parallel glass plate 22 around the y-axis in order to move the image in the x-axis direction of the screen.
And a motor 31y for rotating the parallel glass plate 22 around the x-axis in order to move the image in the y-axis direction of the screen and a deceleration transmission part 32y.

On the other hand, the parallel glass plate 22 has a gimbal frame 36.
The gimbal frame 36y is attached to the gimbal frame 36x so that the gimbal frame 36y can be rotated by a gimbal shaft 37y.
Installed on. The gimbal frame 36x is rotatably attached to the lens barrel 38 by a gimbal shaft 37x. Thus, the parallel glass plate 22 is attached to the lens barrel 38 by the gimbal mechanism.

The rotations of the shake correcting motors 30x and 30y are performed by rotating the gears 40x and 40y and the eccentric cams 41x and 4x, respectively.
1y, cam plate 39 and gimbal rollers 42x, 42y
And is transmitted to the shake correction optical system by the parallel glass plate 22 attached to the gimbal so as to be rotatable about the y-axis and the x-axis via the shake correction force transmission parts 32x and 32y configured by the above-mentioned gimbal mechanism. . Then, the position of the subject image on the film can be changed by rotating the parallel glass plate 22. Of course, changes in the rotations of the motors 30x and 30y result in changes in the image moving speed for correction.

Here, when the image movement in the x-axis direction of the screen occurs, the rotation of the motor 31x is performed by the reduction gears 39x and 40x.
Is transmitted to the eccentric cam 41x via a gear train composed of. Then, on the gimbal roller 42x on the gimbal frame 36x rotatable about the y axis by the gimbal shaft 37x,
The change in the radial length of the eccentric cam 41x is transmitted, and the gimbal frame 36x rotates about the y axis.

Gimbal roller 42x and eccentric cam 41x
Is a pressure spring 43x attached to the gimbal frame 36x.
(See FIG. 14). Therefore, the gimbal frame 3 can be freely rotated by the forward rotation and the reverse rotation of the eccentric cam 41x.
6x rotates. The rotation around the y axis of the gimbal frame 36x is transmitted by the gimbal shaft 37y as the rotation around the y axis of the parallel glass plate 22.

Similarly, when the image is moved in the y-axis direction on the screen, the rotation of the motor 31y is reduced by the reduction gears 39y and 40y.
Eccentric cam 41y, cam plate 4
It is transmitted to 4. The change in the radial length of the eccentric cam 41y is transmitted to the gimbal roller 42y on the gimbal frame 36y rotatable about the x axis by the gimbal shaft 37y, and the gimbal frame 36y rotates about the x axis. The rotation of the gimbal frame 36y about the x axis is the rotation of the parallel glass plate 22 about the x axis as it is.

The motors 31x and 31y, which are the camera-shake correcting actuator 1c, are connected to an x-axis direction drive power generation section and a y-axis direction drive power generation section, which will be described later.

The voltage for driving, the driving duty ratio by PWM, the driving direction, and the stop signal are all instructed by the CPU 30. Further, a position detection unit is installed on the eccentric cam 41x as a unit for detecting the absolute position of the camera shake correction optical system 1d. With the up / down count value matched with the absolute position detection signal and the direction signal of the relative position pulse from the photo interrupter (PI), it is possible to detect the fine position of the optical image stabilization optical system 1d. This is a camera shake correction position detection unit described later.

This absolute position detecting means detects the movable limit of the camera shake correction optical system 1d. 15 (a) to 15 (d)
The eccentric cam 41x and a part of the gimbal roller 42x that transmits the driving force for tilting the parallel glass plate 22 attached to the outer peripheral portion of the gimbal frame 36x are shown.

The effective range of the eccentric cam 41x and the range of the gimbal roller 42x and the eccentric cam 41x are shown in the figure. The upper surface of the eccentric cam 41x is divided into a dark portion having a low reflectance corresponding to the effective range and a bright portion corresponding to the invalid range. The photoreflector (PR) light projecting unit 45 and the PR light receiving unit 45b are directed toward the reflecting surface of the eccentric cam 41x.
PR45 with and is installed, eccentric cam 41x
A signal corresponding to the reflection condition of the facing surface of is output. That is, a determination signal indicating whether or not the eccentric cam 41x and the gimbal roller 42x are in the effective drive range is output. PR above
The blur correction optical system movable limit detection unit 45x determines whether or not the position of the blur correction optical system is within the movable range. As a result, the value of the PI pulse up / down counter is initialized to a predetermined value, so that the image stabilization optical system 1
The position of d (parallel glass plate 22) can be detected.

By the way, as a means for detecting the relative position and speed of the image stabilizing optical system 1d, the driving portion of the gimbal frame 36x to which the parallel glass plate 22 is attached is as shown in FIG. , PI as pulse generator
Blades 46x and PIs 47x and 48x are provided.
A PI blade 46x is attached to the reduction gear 39x and rotates integrally with the rotation of the motor 31x. PI
The blade 46x allows the light rays of the PI 47x and 47x to pass or be blocked by the rotation of the slit portion formed in the PI blade 46x itself. An electrical pulse signal is generated in accordance with the passage / blocking of this light beam.

The positional relationship between the ON / OFF period of the light shielding of the PI blade 46x and the PI 47x and 48x is such that the two PI 47x and 48x pulses are shifted by 1/4 period. This applies a known technique for detecting the direction of rotation of the PI vane 46x.

FIG. 16 shows the circuit configuration on the output side of the PI 47x and 48x. As shown in the figure, the outputs of the two PIs 47x and 48x are shaped into steeper pulse signals by the comparators 49x and 50x, respectively. These comparators 49x and 5
The output of 0x is supplied to the pulse addition circuit 51x and the direction signal detection circuit 52x, respectively.

The pulse adder circuit 51x includes the comparator 4
9x, 50x 2-input exclusive OR operation element (XO
R). In addition, the direction signal detection circuit 52x
Is a D flip-flop (DFF).
Then, the pulse addition circuit 51x and the direction signal detection circuit 5
At 2x, each processing is performed, and a pulse signal and a movement direction signal are output according to the movement of the blur correction unit 9.

FIG. 17 is a time chart of signals showing pulse addition and direction detection in the pulse addition circuit 51x and the direction signal detection circuit 52x. In the figure, at timing A, the rotation direction of the PI blade 46x is reversed. The outputs of the two PIs 47x and 48x are shifted in phase by 90 degrees and their levels are changed according to the rotation of the PI blade 46x. In this case, the pulse addition circuit 51x has
PI 47x shaped by comparators 49x, 50x,
A 48x signal is input. When the two signals are different, a high (H) level signal is output, and when the two signals are the same, a low (L) level signal is output.
It is output from 1x.

On the other hand, in the direction signal detection circuit 52x, the comparator 50x is used as a data input terminal and the comparator 49x is used.
Is connected to the clock input terminal. Then, each time the signal input to the clock terminal changes from "L" to "H", it is output from the output terminal Q according to the "H" or "L" level of the signal input to the data terminal. The signal is updated. Therefore, at the timing A in FIG. 17, when the PI blade 46x starts rotating in the opposite direction, the output changes in response to the subsequent change of the signal of the comparator 49x to the “H” level.

As described above, the pulse signal and the movement direction signal are output according to the movement of the camera shake correction unit. By measuring the time interval of the generation of the PI pulse and performing arithmetic processing, the absolute value of the image moving speed by the correction by the camera shake correction optical system is measured, and its sign is obtained from the direction signal. A portion for detecting the image moving speed by this correction is a camera shake correction speed detecting unit described later.

14 to 16, only the components in the x-axis direction are shown, but since the present embodiment has substantially the same configuration in the x-axis direction and the y-axis direction, The same applies to the y-axis direction. Therefore, the reference numeral x in each figure is replaced with y, and a detailed description thereof will be omitted.

FIG. 18 shows a circuit for applying electric power to the motor per drive shaft. The drive power generation unit 53 includes a motor bridge unit 54 and a motor bridge control circuit 55, each of which includes a transistor and a resistor that are configured to be able to apply a voltage to the motor 31 by switching the voltage between forward and reverse directions. . The motor bridge control circuit 55 logically develops the PWM signal, the drive direction signal, and the stop signal from the CPU 30, and the motor bridge unit 5
And a logic element for outputting the control signal No. 4 to control ON / OFF of the transistor of the motor bridge section 54 to set the motor to an arbitrary state.

The power supply to the motor bridge section 54 is based on the set drive voltage signal from the CPU 30 and is set to D /
An analog voltage signal generated by the A converter 56 is output from a current amplification unit 57 that current-amplifies a feedback control of a power transistor by an operational amplifier.

The motor bridge control circuit 55 includes a CPU
The PWM signal from the CPU 30, the direction signal from the drive direction setting unit that is the output port of the CPU 30, and the motor stop signal from the motor brake output unit that is the output port of the CPU 30 are input. Depending on the signal level of "H" or "L" of these signals, the transistors Tr1 to Tr4 of the motor bridge unit 54 and the transistors respectively connected as pre-drivers for driving these transistors are turned on or off. Controlled by the state.

FIG. 19 shows transistors Tr1, Tr2, Tr corresponding to the states of the PWM signal, the direction signal and the stop signal.
3 shows the states of Tr4 and the state of the motor 31 in each state.

First, when the PWM signal is "L", the direction signal is "L", and the stop signal is "L", all the transistors are in the OFF state, and the motor 31 is in the free state, that is, the idle running state.

Next, when the PWM signal is "H" and the direction signal and the stop signal are "L", the transistor Tr1
Is on, Tr2 is off, Tr3 is off, Tr4 is on, and a current flows to the motor 31 in the CW direction of FIG. As a result, the motor 31 rotates in the CW direction. At this time, if the direction signal becomes "H", the transistor Tr1 is turned off, Tr2 is turned on, Tr3 is turned on, and Tr4 is turned off. As a result, the motor 31 is connected to C in the figure.
A current flows in the CW direction, and the motor 31 rotates in the CCW direction.

If the stop signal becomes "H" level,
The transistor Tr1 is off, Tr2 is off, Tr3 is on, and Tr4 is on regardless of the PWM signal and the direction signal. Therefore, both ends of the motor 31 are grounded, the motor 31 is in the short brake state, and the rotation is rapidly suppressed.

The configuration of these electric circuits makes it possible to drive the parallel glass plate 22 so as to correct the movement of the image on the film surface due to the rotational vibration of the camera. Here, the configuration for rotation around one axis is shown,
By configuring this with two sets and performing processing / control in a time-divisional manner or in parallel, it is possible to easily provide a camera shake correction mechanism for two axes.

FIG. 20 shows the structure of an electrical signal processing block of the camera according to the present embodiment. CPU
30 includes a camera shake detection unit 1a and a film running device 58.
And an exposure device 59 for exposing a subject image on the film by an appropriate amount of light, and a mode reset for generating a signal by operating a button of a photographer to initialize various operation setting modes set in the camera. A signal unit 60, a camera shake mode selection / release selection unit 61, an AF detection unit that detects a focus state of a subject image that has passed through the photographing lens at a position corresponding to the film surface, and a focusing lens optical group for the photographing lens at a focus position. An AF device 62 composed of an AF driving unit for moving and a photometric device 63 for measuring the brightness of a subject to be photographed are connected.

Further, the CPU 30 is connected with a camera shake correction optical system 1d via a camera shake correction speed detection section 64 and a camera shake correction position detection section 65. In addition, the camera shake correction optical system 1d includes an x-axis direction drive power generation unit 66x and a y-axis direction drive power generation unit 66y, an x-axis direction camera shake correction actuator (motor) 31x, and a y-axis direction camera shake correction actuator (motor) 31y. Via the CPU
30 is connected.

The camera shake signal output of the y-axis rotation angular velocity sensor 34x of the camera shake detection unit 1a is the first A / D in the CPU 30.
It is converted by the converter 67x and converted into a digital signal, which becomes the camera shake angular velocity information. Similarly, the signal output of the x-axis rotation angular velocity sensor 34y is converted by the second A / D converter 67y and digitized to become camera shake angular velocity information. In this way, the digitalized camera shake angular velocity information is processed by the correction velocity calculation unit 68 including the x-axis direction correction velocity calculation unit 68x and the y-axis direction correction velocity calculation unit 68y, and the sensitivity and focal length information of the angular velocity sensor and the correction optical Based on the characteristics of the system and the correction actuator, the driving speed of the actuator for correction is obtained.

Based on the calculation result of the correction speed calculation unit 68, whether or not there is a large shake is determined by comparing the shake amount and a predetermined value with the shake correction control unit 69 which generates a drive signal for the actuator for correction. It is sent to the large shake determination unit 70.

The camera shake correction control unit 69 follows the instruction from the sequence control unit 71 for controlling the operation of the camera, and when the camera shake correction drive is necessary, the camera shake correction information from the correction speed calculation unit 68 and the camera shake correction optical system 1d. Based on the drive feedback information from the camera shake correction speed detection unit 64 that measures the speed of the
The drive power generating unit configured by the axial drive power generating unit 66y is instructed about the voltage for the shake correction drive, the drive duty ratio by PWM, the drive direction, the stop signal, and the like.

The large blur determination unit 70 obtains the magnitude of blur from the blur correction information in the two axial directions and compares it with a predetermined value. When it is determined that the blur is larger than the predetermined value as a result of the comparison, the centering signal generator 3 outputs a signal indicating that fact.

The film traveling device 58 and the exposure device 5
9, camera shake mode selection / release selection unit 61, AF device 62
The photometric device 63 is controlled by the sequence controller 71 in the CPU 30.

The mode reset signal section 60 is used to set the operation mode setting values related to AF, such as the continuous AF mode set in the camera and the AF mode in which AF lock is set when the camera is focused, and the aperture priority. Setting values of operation modes related to automatic exposure such as exposure mode and program exposure mode, operation mode setting values such as film feeding speed, etc.
It is a means for outputting a signal when the operation button for instructing so-called mode reset operation is canceled by canceling the setting values of various operations of the camera and resetting to a setting state that is convenient in general conditions. The mode reset instruction signal output of the mode reset signal unit 60 is connected to the sequence control unit 71 in the CPU 30.

The mode reset signal section 60 can be composed of a single dedicated mode reset switch attached to the camera, but by pressing a plurality of specific switch buttons attached to the camera at the same time or the like. It may be a means that outputs the mode reset instruction signal and is configured without adding a switch member of the camera.

The running of the film by the film running device 58 is detected by the film running signal output section 72 in the CPU 30, and when the running of the film starts, a signal to that effect is supplied to the centering signal generating section 3.

When the exposure by the exposure device 59 is completed,
It is detected by the exposure end signal unit 73 in the CPU 30,
A signal to that effect is supplied to the centering signal generator 3. The situation of camera shake mode selection by the photographer's operation,
It is detected by the camera shake mode selection / cancellation selection unit 61.
When a mode change occurs, a signal to that effect is supplied to the centering signal generator 3.

The sequence control unit 71 operates so that the camera operates fixedly in the focus state and the subject brightness measured by the AF device 62 and the photometric device 63, as in the known AF lock and AE lock modes. When controlling the camera, the centering prohibiting unit 11 is instructed to output a signal for suppressing centering to the centering signal generating unit 3. The centering prohibition suppressing unit 12 receives an instruction from the sequence control unit 71,
The suppression signal is output to the centering prohibition unit 11.

The sequence controller 71 is also connected to the centering signal generator 3. The centering control unit 74 receives the centering instruction signal from the centering signal generation unit 3 and controls the camera shake correction actuator by using the x-axis and y-axis direction drive power generation units 66x and 66y to control the camera shake correction position detection unit 65. Drive so that the position of the image stabilization optical part indicated by is at the origin. In this case, the sequence control unit 71 is notified that the centering operation is in progress. The sequence control unit 71 suppresses the camera shake correction operation of the camera shake correction control unit 69 so as not to occur.

The camera shake correction optical system 1d is driven and controlled based on the detected camera shake signal, so that the camera shake correction can be performed. By controlling the drive of the optical system 1d, the camera shake correction optical system 1d can be driven to an arbitrary position. That is, centering can be performed.

Next, the operation of the CPU 30 will be described with reference to the flowcharts of FIGS. Figure 2
In step 1, after the power is first turned on, the standby counter is initialized in step S1, and then the "centering" routine is executed in step S2. Then, in step S3, the value of the standby counter, which is a loop counter for shifting to the power saving mode (standby state) when the camera is not operated for a predetermined time or longer, is checked. Here, when it is a predetermined value (0),
Go to "standby" routine. If the state does not shift to the standby state, the process proceeds to step S4 and the value of the standby counter is decremented.

Next, in step S5, the first release switch (1s
tRel. Check the state of SW). Here, if there is no operation, the process returns to step S3. On the other hand, 1stRel.
When the SW is in the ON state, that is, when the release button is half pressed, the process proceeds to step S6 to initialize the standby counter to a predetermined value.

Then, in step S7, it is determined whether or not the mode reset signal is output from the mode reset signal section 60. When the mode reset is instructed, the process proceeds to step S8, the "centering" routine is executed, and then the process proceeds to step S9. Step S above
If there is no instruction to reset the mode in step 7, the process directly proceeds to step S9.

In step S9, the "AE / display" routine is executed in which the subject brightness is measured using the photometric device 63, the AE calculation for obtaining the shutter speed and the aperture value and the display of the result are performed. Subsequently, in step S10, the AF device 62 is used to measure the focus state of the subject, adjust the focus, and execute the "AF / display" routine for displaying the result.

Next, in step S11, the camera shake for selecting whether to perform the camera shake prevention operation consisting of the push button which is the camera shake mode setting / cancellation selection section 61 or the camera shake compensation operation-free operation. Check the operation of the selection switch. If there is an operation, go to step S12,
If there is no operation, the process proceeds to step S24.

When the process proceeds to step S12 for shooting with image stabilization, the image sensor is turned on, and then the result is displayed using the display device in the viewfinder in step S13. Then, in step S14, the state of the second release switch (2ndRel.SW) for detecting the fully pressed state of the release button is checked. Here, if there is no operation, the process returns to step S5. Also, 2ndR
el. If the SW is on, the process proceeds to step S15 to execute the shooting sequence.

In step S15, it is determined whether the shutter speed (exposure time SS) set for exposure is so short as to not require camera shake correction (correction mi.
nSS) and examine. As a result, if the exposure time (SS) is longer than the predetermined value, the process proceeds to step S16 in order to perform exposure for camera shake correction, and “shake correction exposure” is performed.
Run the routine. Then, during the exposure time, the subject image is exposed on the film while driving the camera shake correction optical system 1d based on the data of the camera shake detection unit 1a.

Next, in step S17, it is determined whether the shooting is in the continuous shooting mode. If the continuous shooting mode is not set, the process proceeds to step S18 and the image stabilization optical system 1d
The "centering & mirror down" routine for simultaneously performing the centering, which is the origin return operation, and the return of the quick return mirror 23 to the optical path is executed. Further, the process advances to step S19 to wind up one frame of film, and then the process returns to step S5.

On the other hand, if the set exposure time (SS) is so short that the camera shake correction is not required in step S15, the process proceeds to step S20.
Normal exposure operation is performed without camera shake correction. Next, in step S21, the quick return mirror 23, which is the main mirror, is returned to the optical path, and in step S22, the film is wound by one frame. Then, in step S23, 2ndRel. The SW operation is checked. If there is an operation, the process returns to step S15. If not, the process returns to step S2 to perform centering.

In step S11, if the camera shake selection switch is not operated and the process proceeds to step S24,
After turning off the shake sensor, a second release switch (2 which detects the fully pressed state of the release button in step S25)
ndRel. Check the state of SW). Here, if there is no operation, the process returns to step S5. On the other hand, 2ndRe
l. If SW is on, the process proceeds to step S26. Then, as a shooting sequence, normal exposure (step S26), return of the quick return mirror 23 to the optical path (step S27), and winding of one film of film (step S28) are performed, and then the process returns to step S5.

Next, referring to FIG. 22, "standby"
The routine will be described. First, in step S31, a "centering" routine is executed. Next, in step S32, when an interrupt occurs, the program moves to step S2 in the flowchart of FIG. 21,
Set the interrupt operation. Then, in step S33, the permission of the interrupt is set so that the interrupt is generated by the generation of the operation signal of the switch (SW).

After that, the program shifts to a power down mode which is a power saving mode requiring only minimum power consumption, and the execution of the program is suspended. FIG. 23 is a flowchart explaining the operation of the "centering" routine.

First, in step S41, it is determined whether the camera shake correction optical system 1d is already at the center position. If it is already at the center position, this routine ends. If it is not in the center position, the process proceeds to step S42 to determine whether or not there is a camera failure. If there is a failure, this routine is terminated, and if not, the process proceeds to step S43.

In step S43, it is determined whether or not the lid of the film storage portion is empty. If the lid is empty, no image is captured, so this routine ends. On the other hand, if the lid is closed, the process proceeds to step S44 and it is determined whether the film is loaded. At this point, shooting cannot be performed unless a film is loaded, so this routine ends.

When the above-mentioned conditions for prohibiting centering are cleared and the routine proceeds to step S45, centering drive is performed here. First, drive the actuator,
Drive the image stabilization optical system 1d to the limit point of the correction range,
Next, the camera shake correction optical system 1d is driven in the opposite direction from that position by a predetermined number of pulses and stopped. Then, this routine ends.

Next, referring to the flow charts of FIGS. 24 and 25, the CPU 3 according to the second embodiment of the present invention.
The operation of 0 will be described. In FIG. 24, after the power is first turned on, the "centering" routine is executed in step S51. Then, in step S52, various flags for determining the operation of the camera are initialized (cleared). This also includes a camera shake selection flag that stores a detection signal of a switch operation for camera shake selection.

Next, in step S53, the state of the first release switch (1stRel.SW) for detecting the half-pressed state of the release button is checked. Here, if there is no operation, the process returns to step S52. On the other hand, 1
stRel. When SW is in the on state, that is, when the release button is half-pushed, the process proceeds to step S54 and the blur sensor is turned on.

Then, in step S55, the operation signal of the camera shake selection switch is detected, and the value thereof is compared with the camera shake selection flag. Here, if they do not match, the process proceeds to step S56, the "forced centering" routine for forcibly centering is executed, and then the process proceeds to step S59. On the other hand, if they match, step S57.
Then, it is determined whether the mode reset signal is output from the mode reset signal section 60. When the mode reset is instructed, the process proceeds to step S56, and when the mode reset is not instructed, step S5 is performed.
Go to 8. Then, in step S58, after executing the normal "centering" routine, step S5
Proceed to 9.

In step S59, the value of the detected operation signal of the camera shake selection switch is stored in the camera shake selection flag. Next, in step S60, it is determined whether or not the camera shake correction mode is selected. If the camera shake correction is selected, the process proceeds to step S61 to display the camera shake information on the display device in the finder.

Next, in step S62, the photometric device 63
Is used to measure the subject brightness, and an "AE / display" routine for performing AE calculation for obtaining the shutter speed and aperture value and displaying the result is executed. After that, the process proceeds to step S63 and the AF
The device 62 is used to execute the "AF / display" routine for measuring the focus state of the subject, adjusting the focus, and displaying the result.

In step S64, it is determined as a result of AF whether or not the subject is in focus. If it is in focus, the process proceeds to step S65, and the AE / AF lock flag is set.

Then, in step S66, the state of the second release switch (2ndRel.SW) for detecting the fully pressed state of the release button is checked. Here, if there is no operation, the process returns to step S53. On the other hand, 2n
dRel. If SW is on, step S67
Proceed to and execute the shooting sequence.

In step S67, the above step S60 is performed.
It is determined whether or not the image stabilization mode is selected. Here, if the image stabilization is selected, step S71.
If there is no selection, go to step S68.

In step S67, if the camera shake correction mode has not been selected and the process proceeds to step S68, the shooting sequence is normal exposure (step S68), and the quick return mirror 23 is returned to the optical path (mirror down).
(Step S69) Further, winding of one frame of film and centering are performed in parallel (step S70).
Then, it returns to step S53.

On the other hand, when it is determined in step S67 that the camera shake correction mode is selected and the process proceeds to step S71, the process waits until the preparation for exposure is completed. here,
It waits until the quick return mirror 23 is retracted to the outside of the optical path and the aperture to the set value of the aperture device is completed so that the shutter device can be opened for exposure.

When the preparation for exposure is completed, the next step S
At 72, image stabilization starts. Then, step S7
At 3, the apparatus waits until the driving speed of the camera shake correction optical system 1d becomes the speed necessary for camera shake correction and the camera shake correction can be sufficiently performed. If it is determined that the camera shake correction is OK, the process proceeds to step S74, the shutter device is opened to start exposure, and in step S75, the film is exposed for a predetermined time. Then, step S46
After proceeding to step S69, returning the mirror (step S69), centering, and winding (step S70), the process returns to step S53.

Next, the "centering" routine will be described with reference to the flowchart of FIG. First, in step S81, it is determined whether the image stabilization optical system is already at the center position. If it is already at the center position, the process proceeds to step S82 to use the large-shake determination unit 70 to determine whether or not the camera shake is large. If it is larger, the center position shifts due to the vibration, and also in order to give a warning to the photographer, the process proceeds to step S85, centering drive is performed, and this routine ends. If it is determined in step S82 that the camera shake is not a large camera shake, this routine ends.

On the other hand, if it is determined in step S81 that the camera shake correction optical system 1d is not present at the center position, the process proceeds to steps S83 and S84 to determine whether AF lock or AE lock is performed. When the AF lock or the AE lock is performed in steps S83 and S84, this routine is ended.

In steps S83 and S84, the AF
If the / AE lock is not made, step S8
After proceeding to 5 and performing centering drive, this routine is ended.

26 and 27 are flow charts for explaining the operation of the CPU 30 as the third embodiment of the present invention. In FIG. 26, after the power is first turned on,
In step S91, the "centering" routine shown in FIG. 27 is executed. Next, in step S92, the state of the first release switch (1stRel.SW) that detects the half-pressed state of the release button is checked, and the operation is repeated until an operation is performed. If there is an operation, the process proceeds to step S93.

Next, in step S93, "AE / display".
After executing the routine, the "AF / display" routine is executed in step S94. Then, in step S95, the state of the second release switch (2ndRel.SW) for detecting the fully pressed state of the release button is checked.
Here, if there is no operation, the process returns to step S92, but if there is an operation, the process proceeds to step S96.

When the process proceeds to step S96, preparation for exposure, that is, withdrawal of the quick return mirror 23 from the optical path and narrowing down to the set value of the diaphragm device so that the shutter device can be opened for exposure. . At the same time, the camera shake sensor is started, signal processing is started, or camera shake correction is started. Then, steps S97 and S98.
When the preparation for exposure and the camera shake correction speed are sufficiently increased and the preparation for camera shake correction is completed, the process proceeds to step S99, and the shutter is opened to start the camera shake corrected exposure.

In step S100, if the exposure of the film for the set exposure time is completed, step S100
The shutter is closed at 101, and then the camera shake correction is ended at step S102. Following the end of this image stabilization,
In step S103, centering and mirror down are performed. Until the centering is completed, the returning operation of the mirror is controlled by the progress of the centering so that the mirror does not return to the complete optical path.

Finally, in step S104, the film is wound on the next frame, and the process returns to step S92. Figure 2
The operation of the "centering" routine shown in FIG. 7 is basically the same as the example shown in the "centering" routine shown in FIG. 25, but here, the centering prohibition at the AF / AE lock is omitted. Has been done.

That is, in step S111, it is determined whether the camera shake correction optical system is already at the center position. Here, if it is already in the center position, the process proceeds to step S112, and it is determined whether or not the camera shake is large.

If it is determined in step S111 that the camera shake correction optical system 1d is not present at the center position, and if the camera shake is large in step S112, the process proceeds to step S113 to perform centering drive.
This routine ends. In addition, the above step S112
Then, if it is determined that the camera shake is not a large camera shake, this routine ends.

FIG. 28 is a flow chart for explaining the operation of the embodiment of the processing when the failure of the camera shake sensor is detected. After the power is turned on, in step S121, the camera executes a "fault check" routine for checking the camera for a fault. At this time, the camera shake detection unit 1a is also energized to check whether its output is normally output.

In step S122, when a failure of the camera shake sensor is detected, the process proceeds to step S123, and the centering is forcibly forced to give a warning to the photographer, for example, a plurality of times, which are different from those in the normal state. Performs operations such as continuous centering. Subsequently, in step S124, the failure location is displayed, and then the power is turned off.

Even if no failure of the camera shake sensor is detected in step S122, if another failure is found in step S125, the process proceeds to step S124 to display the failure location, To go down.

If no failure is found in any of the steps S122 and S125, the normal sequence is proceeded to and the operation is continued. Next, FIG. 29 shows a flowchart for explaining the operation of the CPU 30 as the fourth embodiment of the present invention.

The fourth embodiment is an example of a camera having a camera shake correction demonstration mode in which the effect of camera shake correction can be confirmed by the photographer by the finder even during exposure. First,
In step S131, the camera shake demo mode switch is checked to see if the camera shake correction demo mode has been set.
If it is the demo mode, the process proceeds to step S132, the camera shake detection unit 1a is used to detect the camera shake information, and the camera shake correction optical system 1d is driven based on the detected value. Similarly to the camera shake correction within the exposure time, the camera shake correction optical system 1d is driven so as to cancel the image movement due to the camera shake.

In this case, unlike during exposure, strict camera shake correction is not required, and a low-frequency signal of 1 Hz or less of the signal from the camera shake detection unit 1a can be used so that the camera shake correction can be performed to some extent according to the angle-of-view change operation of the photographer. You may cut and use.
Further, if the camera shake correction optical system 1d moves abruptly to the end of the correction limit and the correction cannot be suddenly reached and the effect of the camera shake correction is hard to understand, it becomes difficult to move to the terminal end side as the position of the camera shake correction optical system 1d approaches the terminal end. May be controlled as follows.

In the image stabilization during exposure, if the image stabilization optical system 1d is not driven so as to follow the image stabilization as much as possible, the resulting image blurring in the photograph will not be sufficiently reduced, but it will be observed by the photographer's eyes. Then, even if the blurring remains to some extent, the eyes follow the blurring and do not notice the blurring, so it is useful to change the characteristics in this way.

As described above, it is possible to change the camera shake correction characteristic during exposure and the characteristic in the demo mode. The camera shake correction in the demo mode is continued until the operation of the camera shake demo mode switch is completed in step S133. In the case of ending the demo mode, centering is performed in step S134, and then the process returns to step S131.

Note that when the demo mode is entered, the demo mode cannot be used for shooting. Therefore, the transfer may be permitted only in a situation where shooting is not possible, such as when no film is loaded.

If there is no shift to the demo mode, the process proceeds from step S131 to step S135. If there is an operation for changing the camera shake mode, forced centering is performed at step S136 and then the process proceeds to step S137. In step S137, the state of the first release switch (1stRel.SW) is checked, and if there is no operation, the process returns to step S131.

If the first release switch is operated, the "AE / display" routine is executed in step S138. Then, the "AF / display" routine is executed. Then, in step S139, a second release switch (2ndR) for detecting the fully pressed state of the release button is pressed.
el. Check the state of SW). Here, if there is no operation, the process returns to step S131. On the other hand, if the second release switch is operated, the process proceeds to step S141.

In step S141, it is determined whether or not the camera shake correction mode is selected. If the camera shake correction is selected, the process proceeds to step S145, and if not, the process proceeds to step S142.

If the image stabilization mode is not selected, step S
If you proceed to 142, as a normal shooting sequence,
Do normal exposure. Then, after the exposure is finished, step S
At 143, the quick return mirror 23 is returned to the optical path (mirror down) and the image stabilization optical system 1d is centered. Next, in step S144, the film is wound by one frame, and the process returns to step S131.

On the other hand, if it is determined in step S141 that the camera shake correction mode has been selected and the process proceeds to step S145, the preparation for exposure is started and waits until the preparation for exposure is completed. Here, it waits until the quick return mirror 23 is retracted to the outside of the optical path and the stop down to the set value of the stop device is completed so that the shutter device can be opened for exposure.

Then, when the preparation for exposure is completed in step S146, the process proceeds to step S147 to start camera shake correction. The exposure start is slightly delayed in step S148 so that the image movement by the camera shake correction optical system 1d becomes a required value, and then in step S149, the shutter device is opened to start the exposure.

Next, in steps S150 and S151,
The film is exposed for a predetermined time and the shutter is closed to end the exposure. After that, the above step S143 is proceeded to,
Mirror return and centering, and step S144
After performing the winding operation in step S131, the process returns to step S131.

FIG. 30 is a flow chart showing another example of the "centering" routine. First, step S1
At 61, it is checked whether the photographing lens is returning from the retracted state (stored state), such as when the power is turned on or when the standby mode is restored. If the process is returning, step S16 is performed in order to exclude some conditions to be described later that prohibit centering.
Go to 5.

If it is determined in step S161 that the retracted state is not being recovered, the process proceeds to step S162. Step S
If the AF lens is not attached in 162, that is, if the manual focus lens is attached, step S16
If the manual focus mode is set in step 3 and if AF is not in progress in step S164, the process proceeds to step S165.

In step S165, it is checked whether or not the position of the camera shake correction optical system 1d is the center position. If it is not at the center position, the routine proceeds to step S166 to perform centering drive, and then this routine is exited. On the other hand, if it is the center position, it is not necessary to perform centering, so this routine is terminated without performing centering.

Further, in steps S162 to S164,
If the AF lens is attached, the auto focus mode is set, and the AF focus is being detected,
Centering is prohibited and this routine ends without centering.

FIG. 38 is a flow chart showing still another example of the "centering" routine. This is an example of efficiently operating the actuator within the power supply capacity.

First, in step S191, it is checked whether or not another actuator is operating and whether or not the strobe is being charged. Here, if it is not in operation, the process proceeds to step S193. On the other hand, if the actuator is operating or the flash is being charged, step S
Proceed to 192.

In step S192, it is checked whether or not the power supply has the ability to perform the centering operation.
Here, if the above capability remains, the process proceeds to step S193, and if not, the process returns to step S191. Then, in steps S191 and S192, the above operation is repeated until the operation of the other actuator is completed.

In the case of proceeding to step S193, the other actuator drive prohibition signal is set in order to prohibit the driving of other actuators and the strobe charge during the centering operation. Next, in step S194, centering drive is performed. Then, in step S195, the other actuator drive prohibition signal is cleared, and this routine ends.

If the centering operation is prioritized over other actuator operations, steps S191 and S192 may be omitted. It is also possible to configure a "centering drive" routine, as shown in FIG.

That is, first, in step S201, the power supply state is checked to determine whether or not centering of two axes can be performed simultaneously. Here, if possible, the process proceeds to step S202, and the two axes are simultaneously centered in parallel.
On the other hand, if it is determined that the two axes cannot be centered simultaneously, the process proceeds to step S203. And step S
The first axis is centered at 203, then step S2
At 04, the second axis is centered.

In this case, a known battery level determination method may be used to inspect the power supply state. FIG. 31 shows a schematic configuration of an external light type active AF camera.

In the figure, a photographing lens 76, an exposure device 77, and an AF group 78 movable in the direction of arrow B in the figure are provided as a photographing optical system in the camera body 75, and further behind the camera body 75. The film 27 is placed in the. On the other hand, in addition to the photographing optical system, a finder unit 79 and an active AF unit 80 as a finder optical system are provided above the camera body 75, for example.

FIG. 32 is a flow chart for explaining the schematic operation of the centering sequence in the external light active AF camera shown in FIG. In the case of AF by active AF, single-lens reflex camera (SL
Since AF is not performed by TTL as in (R), centering does not reduce the accuracy of AF focus detection. Further, the viewfinder image is not affected by centering. Centering at the same time as the AF operation is an effective measure to save the time required for centering.

Therefore, first, in step S171, the operation of the first release switch is checked. If the first release switch is operated, step S17
Proceeding to step 2, measurement of the subject distance by active AF and centering are performed simultaneously. Next, in step S173, the AF lens (AF group 78) is driven to the in-focus position. Centering may be applied during this driving.

If the centering is completed in step S174, the process proceeds to step S175.
Check the operation of the second release switch. If there is no operation of the second release switch, step S17
Go to 6 and check the operation of the first release switch. Here, if the first release switch is operated, the process returns to step S175, and if there is no operation, the process returns to step S171.

In step S175, if the second release switch is operated, step S177.
In step S178, the film is exposed, the film is wound up to the next frame, and then the process returns to step S171.

In this way, in the case of a camera using active AF, centering can be performed at the timing of AF. Further, an external light type passive AF other than the external light type active AF can be similarly configured.

By the way, there is a so-called red-eye phenomenon in which the pupil portion of a human subject is red-colored by strobe light. To reduce this red-eye phenomenon, a camera that pre-flashes a strobe or LED prior to stroboscopic photography is known. There is.

At this pre-flash timing, AF
The operation is finished, and the AF is not adversely affected by the centering operation regardless of the TTL / external light type. Therefore, as shown in the flowchart in FIG. 33, a camera configured to perform centering prior to exposure after operating the second release switch may be configured to perform red-eye strobe pre-flashing and centering simultaneously. ,
It leads to the reduction of time lag.

That is, in FIG. 33, step S1
If the second release switch is operated at 75, it is then checked at step S179 whether or not strobe pre-light emission is performed as a measure against the red-eye phenomenon.

If no countermeasure against the red eye phenomenon is taken, step S
After proceeding to 180 and performing only centering, step S
Proceed to 177. On the other hand, in the case of taking measures against the red-eye phenomenon, the process proceeds to step S181 to simultaneously perform the red-eye strobe pre-flashing and the centering, and then to step S177.

Incidentally, in FIG. 33, other steps S
Since steps 171 to S178 are the same as the steps of the flowchart of FIG. 32, description thereof will be omitted. In the above-described embodiment, the blur correction unit 1 has a configuration in which a blur is detected and the blur is corrected based on the detected value. However, the present invention is not limited to this configuration, and FIG. As shown, the shake correction unit 1 uses the inertial vibration damping unit 1 for space fixation using the inertial force of an inertial pendulum or a spinning gyro.
It can also be applied to a camera in which e is connected to the lens barrel portion 1g, and the lens barrel portion 1g is fixed in space against vibration of the camera body to correct shake.

FIG. 34 is a schematic configuration diagram showing an embodiment in the case of a camera having such a blur correction unit 1. In FIG. 34, the camera body 81 includes a lens barrel support portion 8 so that the lens barrel portion 1g can freely rotate about the x axis and the y axis.
2 is caught.

Further, in order to make the movement of the lens barrel portion 1g for camera shake correction with respect to the camera body 81 small and effective, the camera body 81 and the lens barrel portion 1g are separated from each other prior to the exposure to separate the lens barrel portion 1g. The exposure may be performed when the movement becomes small. Therefore, the main body barrel separating portion 1f for separating the body barrel portion 1g from the camera body 82 is connected to the body barrel portion 1g. A clutch mechanism of an electromagnetic actuator using a solenoid can be applied to this.

In the lens barrel portion 1g, the taking lens 83,
An exposure device 84 and a film 27 are arranged. A gyro rotor 85 is provided in the barrel portion 1g. Further, above the camera body 81, a finder section 86 as a finder optical system is provided in addition to the lens barrel section 1g of the photographing optical system.

The centering portion 2 of FIG.
The centering actuator 2a for returning the lens barrel portion 1g to the original position is an actuator using electromagnetic force, and when energized, an attraction force is generated to the center to perform centering. The space-fixed inertial force is generated by the gyro rotor 85.

Before the exposure, the lens barrel portion 1g is held at the center position and the gyro is activated, the force generated by the centering actuator 2a is blocked during exposure, and the main lens barrel separation portion 1f is actuated to actuate the lens barrel portion 1g. Camera body 8
From 1 to free state. As a result, vibration of the lens barrel portion 1g during exposure is eliminated, and camera shake is corrected.

At the time of centering, a suction force is generated in the centering actuator 2a, and after centering, the main body barrel disconnecting portion 1f is driven to the connection side to release the separated state.

As a result, the lens barrel portion 1g and the camera body 81 have an integrated structure except during exposure and centering. It is possible to perform centering at the above-described centering timing even for a camera having such a centering mechanism.

According to the above embodiment of the present invention, the following constitution can be obtained. (1) In a camera including a blur correction device including a blur correction means for correcting image blur on a film and a hand movement correction centering means for initializing the blur correction means to a predetermined position, A camera characterized by centering in response to the end of exposure.

(2) Equipped with a rotatable quick return mirror that switches the optical path of the light flux passing through the taking lens between the observation system and the exposure system, and the quick return mirror returns to the optical path until the centering operation is completed. The camera according to (1) above, wherein the camera is prohibited.

(3) A camera including a blur correction device composed of a blur correction means for correcting image blur on a film and a blur correction system centering means for initializing the blur correction means to a predetermined position. In this, the camera is characterized by performing centering in response to the film running timing.

(4) The camera described in (3) above, which is centered in response to a film feeding sequence. (5) The camera according to (3) above, which is centered in response to the output of the film running detection means.

(6) Consists of a blur detecting means for detecting image blur on the film, a blur correcting means for correcting the blur, and a blur correcting system centering means for initializing the blur correcting means to a predetermined position. In a camera including a blur correction device, the camera performs centering when the blur detection unit detects a large blur exceeding a predetermined value.

(7) A camera including a blur correction device constituted by a blur correction means for correcting image blur on a film and a blur correction system centering means for initializing the blur correction means to a predetermined position. In the camera, the camera performs centering when the shake correcting means is not in the initial position when not in the shake correcting mode or when the centering operation is not performed.

(8) A camera including a blur correction device constituted by a blur correction means for correcting image blur on a film and a blur correction system centering means for initializing the blur correction means to a predetermined position. In this case, the camera is characterized by performing centering according to a change in the power management state such as turning on the power, shifting to the standby state, and returning from the standby state.

(9) A camera including a blur correction device including a blur correction unit for correcting image blur on a film and a blur correction system centering unit for initializing the blur correction unit to a predetermined position. In the camera, the centering is performed in response to at least one of setting and canceling the shake correction mode.

(10) A camera including a blur correction device constituted by a blur correction unit for correcting image blur on a film and a blur correction system centering unit for initializing the blur correction unit to a predetermined position. A camera characterized in that centering is performed according to a mode reset operation of a set operation mode.

(11) A camera including a blur correction device constituted by a blur correction unit for correcting image blur on a film and a blur correction system centering unit for initializing the blur correction unit to a predetermined position. In the camera, when the blur correction means is within a predetermined correction range, centering is not performed.

(12) The camera as described in (1), (3), (6) or (8) above, which is not centered when not set in the shake correction mode. (13) In the continuous shooting mode, the centering is not performed within a predetermined time after the end of exposure, (1),
The camera according to (3), (6) or (7).

(14) The camera described in (1), (3), (6) or (7) above, wherein in the continuous shooting mode, no centering is performed between one exposure and the next exposure. .

(15) The camera according to the above (14), characterized in that in the continuous shooting mode, the blur correction is continued between the exposure and the next exposure. (16) The camera according to (1), (3), (6), or (7), which is not centered in an AF locked state in which the focal position of the taking lens is fixed.

(17) The camera described in (1), (3), (6) or (7) above, which is not centered in the AE lock state for fixing the exposure condition. (18) The above (1), (3), characterized in that centering is not carried out when proper exposure to the film is impossible.
The camera according to (6) or (7).

(19) The above (1), wherein the film is not centered when no film is loaded,
The camera according to (3), (6) or (7). (20) The camera according to (1), (3), (6), or (7) above, which is not centered when the back cover or the film storage unit cover is open.

(21) The above (1), (3), (6) or (7) is characterized in that when photographing cannot be continued due to a malfunction of functions other than the blur correction system, centering is not performed.
The camera described in.

(22) The camera as described in (6) or (7) above, wherein the camera is centered after the blur correction operation is completed. (23) Blur correction means for correcting image blur on film, blur correction system centering means for initializing this blur correction means to a predetermined position, and focus adjustment for the photographing optical system A
A camera including a blur correction device configured by F (automatic focus adjustment) means, wherein the centering is permitted at a timing when the AF means does not operate effectively.

(24) Blur correction means for correcting image blur on film, blur correction system centering means for initializing this blur correction means to a predetermined position, and AF (automatic focus adjustment) for focus adjustment of the photographing optical system. ) Means and a camera capable of exchanging a lens including a blur correction device, the AF means does not perform centering during the operation of the AF means.
A camera that allows centering when a compatible photographic lens is not attached.

(25) Blur correction means for correcting image blur on film, blur correction system centering means for initializing this blur correction means to a predetermined position, and AF (automatic focus adjustment) for focus adjustment of the photographing optical system. ) Means, a camera including a blur correction device, wherein the centering is not performed during the operation of the AF means, and the centering is permitted in the manual focus mode.

(26) Shake correction means for correcting image shake on film, shake correction system centering means for initializing the shake correction means to a predetermined position, and AF (automatic focus adjustment) for adjusting the focus of the photographing optical system. ) Means, the camera including a blur correction device, wherein the centering is not performed during the operation of the AF means, and the centering is permitted during the recovery of the lens from the retracted state. .

(27) Blurring detecting means for detecting image blur on the film, blur correcting means for correcting the blur,
A camera including a blurring correction device centering means for initializing the blurring correction means to a predetermined position, wherein forced centering is permitted.

(28) The camera as described in (27) above, wherein the camera is forcibly centered by multiple operations of predetermined operation members. (29) The camera as described in (27) above, wherein forced centering is performed when a blur correction selecting member that enables blur correction by operating the release operation at the same time is operated.

(30) The forced centering is permitted when the shake detecting means has a failure.
The camera according to 7). (31) A mode in which forced centering is permitted and a mode in which forced centering is not permitted depending on the state of the camera,
The camera according to (27) above, which further comprises:

(32) The camera described in the above (27), characterized in that forced centering is performed in response to a mode reset operation in the setting mode. (33) Blur correction means for correcting image blur on the film, blur correction system centering means for initializing the blur correction means to a predetermined position, and TTLAF (automatic) for focus adjustment based on the light flux passing through the taking lens. A camera including a blur correction device composed of a focus adjusting means and the blur correction device, wherein the TTLAF means is disabled during the blur correction operation.

(34) Blurring correction means for correcting image blurring on film, blurring correction centering means for initializing this blurring correction means to a predetermined position, and external light AF using an optical path other than the taking lens. (Automatic focus adjustment) means,
A camera including a blur correction device configured according to claim 1, wherein centering is permitted during operation of the external light AF means.

(35) Blur correction means for correcting image blur on the film, blur correction system centering means for initializing this blur correction means to a predetermined position, and external means operating in parallel with the operation of this centering means. A camera including an optical AF (autofocus) means.

(36) A camera including a blur correction device constituted by a blur correction means for correcting image blur on a film and a blur correction system centering means for initializing the blur correction means to a predetermined position. A camera characterized by performing centering during pre-flash of a strobe device for reducing the occurrence of red-eye phenomenon.

(37) A camera including a blur correction device constituted by a blur correction means for correcting image blur on a film and a blur correction system centering means for initializing the blur correction means to a predetermined position. A camera having an exposure mode of an exposure procedure with centering and an exposure procedure without centering.

(38) A camera including a blur correction device composed of a blur correction means for correcting image blur on a film and a blur correction system centering means for initializing the blur correction means to a predetermined position. In this case, the camera is characterized by not performing centering in a shooting mode in which the image stabilization is not performed.

(39) The actuator in the camera and the actuator for centering the blur correction optical system are
A camera characterized by at least not being driven simultaneously. (40) A camera having a mode for simultaneously centering a plurality of directions in a blur correction optical system and a mode for time-wise centering for each direction.

According to the camera described in (1) above, since the centering is performed after the exposure is completed, it is possible to achieve both quick shooting that does not miss a shutter chance and securing a blur correction range for the next shooting. According to the camera described in (2) above, since the centering is performed after the end of exposure without showing the shake of the image due to the centering after the shooting to the photographer, quick shooting that does not miss a shutter opportunity and camera shake during the next shooting. The compensation range can be secured at the same time. According to the cameras described in (3) to (5) above, since centering is performed during film running, which is a time period that is incompatible with exposure, rapid shooting that does not miss a shutter opportunity and blur correction range for the next shooting can be achieved. Secure both. According to the camera described in (6) above,
Since centering is performed in the case of a large shake that reduces the accuracy of shake correction, it is possible to achieve both quick shooting that does not miss the shutter opportunity for shooting with a normal camera shake occurrence level and securing a shake correction range for the next shooting. According to the camera described in (7) above, since centering is performed when there is a deviation from the movable origin of the blur correction unit, it is possible to secure the blur correction range for the next shooting. According to the camera described in (8) above, since centering is performed when the camera is not in the shooting state, such as when the power is turned on, when the power is turned on, when returning from the standby state, etc., quick shooting and shooting that does not miss a shutter chance. It is possible to secure the blur compensation range at the same time. Further, according to the camera described in (9) above, since centering is performed when the mode is not in the shooting state when the mode is changed, it is possible to achieve both quick shooting that does not miss a shutter chance and securing a blur correction range during shooting. According to the camera described in (10) above, since the centering signal is generated by operating the mode reset instruction button of the operation mode set in the camera, the mode reset operation can be explicitly transmitted to the photographer, and The position of the blur correction optical system can be reliably initialized, the camera can be operated by an easy operation, and the blur correction range at the time of shooting can be secured at the same time.

Further, according to the camera described in (11) above, the centering operation is prohibited when the blurring correction means is already near the driving origin, and the centering operation is prohibited. Therefore, the time and energy required for the centering are saved. it can. According to the camera described in the above (12), the centering operation is prohibited when the centering without performing the shake correction is not necessary, so that the time and energy required for the centering can be saved. According to the cameras described in (13) to (15) above, it is possible to provide a camera with a shake correction function that does not impair the rapid-fire property in the continuous shooting mode in which importance is attached to the shutter chance. According to the camera described in (16) above, it is possible to provide a camera with a blur correction function that is true to the photographer's screen drawing intention without shifting the angle of view by performing centering after AF locking. According to the camera described in (17) above, it is possible to provide a camera with a shake correction function that is centered after AE lock and does not shift the angle of view and is faithful to the photographer's screen drawing intention.
Further, according to the cameras described in (18) to (20), the centering operation is prohibited when the centering is not necessary, which is the case where the film is not exposed, so that the time and energy required for the centering are reduced. You can save. According to the camera described in (21) above, the centering operation is prohibited when the exposure of the film cannot be performed due to the failure of the camera and the centering is not necessary.
It is possible to save the time and energy required for centering, and to provide a camera that does not cause the photographer to have useless expectations. According to the camera described in (22) above,
Centering is performed after shake correction, and when there is a large shake that reduces the accuracy of shake correction, or when there is a deviation from the movable origin of the shake correction means, centering is performed, so there is a shutter chance for shooting at a normal shake occurrence level. Both quick shooting that you do not miss and securing the blur correction range for the next shooting are compatible.

According to the camera described in (23) above, centering is performed at a timing when the AF function does not work effectively in a single-lens reflex camera or the like, so a camera in which the image movement due to centering does not give an error to the TTLAF is used. Can be provided. According to the camera described in (24) above, the centering is not performed during the operation of the AF function in the single-lens reflex camera or the like, the image movement due to the centering does not give an error to the TTLAF, and it is quick in the case of the manual focus lens. It is possible to provide a camera capable of ensuring a blur correction range. According to the camera described in (25) above, the AF can be performed by a single-lens reflex camera or the like.
It is possible to provide a camera in which centering is not performed during operation of a function, an image movement due to centering does not give an error to TTLAF, and a blur correction range can be secured quickly in the manual focus mode. According to the camera described in (26) above, centering is not performed during operation of the AF function in a single-lens reflex camera or the like, and
It is possible to provide a camera in which an image movement due to centering does not give an error to TLAF and a blur correction range can be secured quickly when AF cannot be performed.

According to the camera described in (27) above, since it has a mode / means for performing centering regardless of the state of the camera, it is possible to provide a camera capable of ensuring a rapid blur correction range when necessary. it can. Above (28)
According to the camera described in (1), since the photographer intentionally has a mode / means for performing centering regardless of the state of the camera, it is possible to provide a camera that can quickly secure a shake correction range when necessary. it can. According to the camera described in (29) above, when the photographer intentionally performs the shake-correction photography, the camera can react, so that the mode can be confirmed.
Further, it is possible to provide a camera capable of quickly ensuring a blur correction range. Further, according to the camera described in (30) above, when the photographer intentionally performs the shake-correction shooting, it is possible to confirm the failure of the shake correction when there is no camera reaction, and the camera lens has an appropriate angle of view. A camera that carries can be provided. According to the camera described in (31) above, when the photographer intentionally changes the centering mode, it is possible to provide a camera that can reflect various intentions of the photographer, and the camera can execute a mode according to need. It is possible to provide a camera having a blur correction function most suitable for the situation. According to the camera described in (32) above, since the centering signal generating means surely generates the centering signal by operating the mode reset instruction button of the operation mode set in the camera, the mode reset operation is clearly indicated to the photographer. In addition, the position of the blur correction optical system can be reliably initialized, the camera can be operated by an easy operation, and the blur correction range at the time of shooting can be secured at the same time.

Further, according to the camera described in (33) above, the TTL using the TTLAF information during the shake-preventive shooting is used.
Since AF can be prohibited, it is possible to eliminate a malfunction of AF based on AF data at a timing when TTLAF during exposure cannot be performed. In addition, the T
The photographer is informed that the mode is the demo mode in order to prohibit the TLAF. According to the cameras described in (34) and (35), the active AF system camera has no AF malfunction due to the centering, and both quick shooting without missing a shutter opportunity and securing of a blur correction range at the next shooting are compatible. To do. According to the camera described in (36) above, since the centering is performed in the time lag time before exposure in which no shooting is performed, quick shooting that does not miss a photo opportunity and securing of a shake correction range during shooting are compatible. According to the camera described in (37) above, the optimum centering mode can be set according to the shooting mode, and quick shooting that does not miss a shutter chance and securing of a blur correction range during shooting are compatible.
According to the camera described in (38) above, the optimum centering mode can be set according to the shooting mode, and both quick shooting that does not miss a photo opportunity and securing of a blur correction range during shooting are compatible. Furthermore, (39) and (4
According to the camera described in 0), it is possible to configure the centering device of the shake correction device that operates efficiently in accordance with the power supply capacity in the camera.

[0215]

As described above, according to the present invention, it is possible to provide a camera shake correction apparatus in which it is difficult to miss a shutter chance and the correction range can be effectively used.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first basic configuration example of a camera shake correction device of the present invention.

FIG. 2 is a block diagram showing a second basic configuration example of the camera shake correction device of the present invention.

FIG. 3 is a block diagram showing a third basic configuration example of the camera shake correction device of the present invention.

FIG. 4 is a block diagram showing a fourth basic configuration example of the camera shake correction apparatus of the present invention.

FIG. 5 is a block diagram showing a fifth basic configuration example of the camera shake correction device of the present invention.

FIG. 6 is a block diagram showing a sixth basic configuration example of the camera shake correction device of the present invention.

FIG. 7 is a block diagram showing a seventh basic configuration example of the camera shake correction device of the present invention.

FIG. 8 is a block diagram showing an eighth basic configuration example of the camera shake correction device of the present invention.

FIG. 9 is a block diagram showing a configuration of a blur correction unit 1 and its peripheral portion.

FIG. 10 is a diagram showing an example in which the camera shake correction apparatus of the present invention is applied to a so-called single-lens reflex camera.

FIG. 11 is a diagram showing three axes of x, y, and z given to the camera.

12 is a diagram showing a detailed arrangement of the camera shake detection unit 1a in FIG.

13 is a diagram showing details of a motor 31 and a deceleration transmission part 32 for driving the parallel glass plate 22 of FIG.

14 is a diagram showing details of a motor 31 and a deceleration transmission part 32 for driving the parallel glass plate 22 of FIG.

15 is an eccentric cam 41x and a gimbal frame 36 of FIG.
It is the figure which showed a part of gimbal roller 42x which transmits the driving force which tilts the parallel glass plate 22 attached to the outer peripheral part of x.

FIG. 16 is a photo interrupter (PI) 47x of FIG.
And 48x is a diagram showing a circuit configuration on the output side.

17 is a time chart of signals showing pulse addition and direction detection in the pulse addition circuit 51x and the direction signal detection circuit 52x of FIG.

FIG. 18 is a diagram showing a circuit for applying electric power to a motor per one drive shaft.

FIG. 19 is a diagram showing the states of the transistors Tr1, Tr2, Tr3, Tr4 according to the states of the PWM signal, the direction signal, and the stop signal, and the state of the motor 31 in each state.

FIG. 20 is a diagram showing a configuration of an electrical signal processing block of the camera of the first embodiment.

FIG. 21 is a flowchart illustrating an operation of CPU 30 according to the first embodiment.

FIG. 22 is a flowchart illustrating an operation of CPU 30 according to the first embodiment.

FIG. 23 is a flowchart illustrating an operation of CPU 30 according to the first embodiment.

FIG. 24 is a CPU 30 as a second embodiment of the present invention.
3 is a flowchart illustrating the operation of the above.

FIG. 25 is a CPU 30 as a second embodiment of the present invention.
3 is a flowchart illustrating the operation of the above.

FIG. 26 is a CPU 30 as a third embodiment of the present invention.
3 is a flowchart illustrating the operation of the above.

FIG. 27 is a CPU 30 as a third embodiment of the present invention.
3 is a flowchart illustrating the operation of the above.

FIG. 28 is a flowchart illustrating an operation of an embodiment of processing when a failure of a camera shake sensor is detected.

FIG. 29 is a CPU 30 as a fourth embodiment of the present invention.
3 is a flowchart illustrating the operation of the above.

FIG. 30 is a flowchart showing another example of the “centering” routine.

FIG. 31 shows a schematic configuration of an external light type active AF camera.

32 is a flowchart illustrating a schematic operation of a centering sequence performed by the external light active AF camera shown in FIG. 31. FIG.

33 is a flowchart illustrating a schematic operation of another sequence for performing centering with the external light active AF camera of FIG. 31. FIG.

FIG. 34 is a schematic configuration diagram showing an embodiment in the case of a camera having the blur correction unit 1 shown in FIG. 9B.

FIG. 35 is a block diagram showing another example of the second basic configuration of the camera shake correction device of the present invention.

FIG. 36 is a block diagram showing still another example of the second basic configuration of the camera shake correction device of the present invention.

FIG. 37 is a block diagram showing a modified example of the second basic configuration of the camera shake correction device of the present invention.

FIG. 38 is a flowchart showing still another example of the “centering” routine.

FIG. 39 is a flowchart showing an example of a “centering drive” routine.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Shake correction part, 1a ... Shake detection part, 1b ... Shake correction signal generation part, 1c ... Shake correction actuator, 1d
... Shake correction optical system, 1e ... Inertial vibration damping section, 1f ... Main body barrel separating section, 1g ... Lens barrel section, 2 ... Centering section, 2a
... Centering actuator, 3 ... Centering signal generator, 4 ... Timing controller, 5 ... Film running unit,
6 ... exposure end signal section, 6a ... quick return mirror restoration prohibition section, 7 ... large shake detection section, 8 ... correction optical system position detection section, 9 ... shake mode setting section, 10 ... power state management section, 1
1 ... Centering prohibition unit, 12 ... Centering prohibition suppression unit, 13 ... Forced centering signal generation unit, 14 ... TTL
AF (autofocus) sensor prohibition unit, 15 ... TTL
AF (auto focus) section, 16 ... Active AF
Part, 17 ... Pre-emission signal output part, 18 ... Centering operation selection part, 22 ... Parallel glass plate, 30 ... CPU (microcomputer).

Continuation of front page (56) Reference JP-A-7-199262 (JP, A) JP-A-3-121435 (JP, A) JP-A-6-148711 (JP, A) JP-A-5-224270 (JP , A) JP-A-1-298332 (JP, A) JP-A-6-130475 (JP, A) JP-A-7-168234 (JP, A) JP-A-7-218949 (JP, A) JP-A-7-218949 (JP, A) 7-294985 (JP, A) JP-A-6-194711 (JP, A) JP-A-3-192226 (JP, A) JP-A-7-294986 (JP, A) JP-A-5-107619 (JP, A) JP-A-4-134316 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) G03B 5/00 G03B 17/00

Claims (3)

(57) [Claims] 1. A blur correction unit including a blur correction member driven within a predetermined movable range having a neutral point in order to optically correct an image blur on an exposure surface, and the blur correction member described above. and centering means for moving the neutral point, comprises a centering prohibiting unit that performs prohibition centering execution by said centering means, a focusing means for adjusting the focus of the photographing optical system, and in the case of continuous shooting mode, the Centering means
Before performing the focus adjustment by the focusing means.
After the focus adjustment is performed, the operation of the shake correction means is opened.
Started to perform the first exposure continuous, and the second the continuous shooting
Image stabilization is performed by the above image stabilization means in subsequent exposures
In this case, the camera shake correction apparatus is characterized in that the centering prohibiting unit prohibits execution of centering by the centering means. 2. An optical image blurring on an exposure surface is optically corrected.
Drive in a predetermined movable range having a neutral point.
A blur correction unit including a blur correction member, and a centering unit for moving the blur correction member to the neutral point.
Prohibiting centering execution by the centering means and the above centering means.
Comprising a centering prohibition unit that performs, and when the continuous shooting mode, the center before continuous first exposure
Perform centering by the ring means and
Examine the exposure time for each shooting, and
If the correction is shorter than the required predetermined value, the blur correction means
The image stabilization time is not corrected by the
If the positive value is longer than the required predetermined value,
The camera shake is corrected by the
When exposure is used to perform image stabilization using the above image stabilization means
The centering means, the centering
Lines are prohibited by the above centering prohibition section
The camera shake correction device characterized by the above . 3. Optical correction for image blur on an exposure surface
Drive in a predetermined movable range having a neutral point.
A blur correction unit including a blur correction member, and a centering unit for moving the blur correction member to the neutral point.
Prohibiting centering execution by the centering means and the above centering means.
Comprising a centering prohibition unit, the performing, if not continuous shooting mode, image stabilization was performed exposing final
When the mirror goes down after completion,
Centering by the above centering means
In the continuous shooting mode, the image stabilization was performed.
When the mirror goes down for each exposure during continuous shooting, the
Prohibiting the centering means by the ringing prohibition section,
When the mirror is down at the end of continuous shooting
In addition, the fact that the above centering is performed
Characteristic camera shake correction device.