JPH07203281A - Image pickup device - Google Patents

Abstract

PURPOSE:To always obtain a picture with high quality. CONSTITUTION:When a V lens 1b and an RR lens 1d are moved in a direction of an optical axis 6 in the zooming or focusing or the like, a camera control circuit 24 confirms the presence of the operation of a zoom operation switch 21 or the change in the position of the zoom lens 1b by an encoder 22 to start prescribed image shake correction. Thus, the image shake is reduced by reducing the shake of the picked up picture on an image screen of a photoelectric conversion element 17 that might be caused by a play of the V lens 1b and the RR lens 1d to always obtain a picture with high quality.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image pickup device, and in particular,
It is suitable for use in a video camera in which a photographing optical system having a moving optical system can be detachably mounted, or a video camera incorporating the photographing optical system.

[0002]

2. Description of the Related Art Conventionally, a video camera having a zoom function and a focus function has been designed so that an image obtained when a photographing optical system moves during zooming or focusing can be recorded. At this time, the quality of the recorded image may be deteriorated due to the shaking of the video camera due to the zooming or focusing operation.

There is also a phenomenon that the center positions of the screen at the telephoto end and the wide-angle end are displaced due to a slight inclination of the lens guide mechanism that occurs when the moving optical system moves. Therefore, by minimizing the rattling of the holding structure and the moving mechanism of the moving optical system, it is possible to prevent the moving optical system from rattling at the time of its movement, and to minimize the occurrence of shaking in a recorded image. The deterioration of the image quality and the deterioration of the quality are suppressed.

[0004]

However, in order to move the moving optical system, it is necessary to provide some clearance between the holding structure and the components of the moving mechanism. Therefore, when the moving optical system is moved, it is not possible to completely ignore the shaking of the moving optical system caused by the rattling of the moving optical system, which deteriorates the captured image and deteriorates its quality. There was something that happened.

By the way, in recent years, the size of image pickup devices such as CCDs has been reduced and the density of pixels has been increased, and a smaller image pickup optical system is being provided. However, although it is possible to reduce the size of the image pickup device, there is a limit to the reduction in the clearance between the components of the moving optical system holding structure and the moving mechanism. For this reason, it is inevitable that rattling during the movement of the moving optical system will occur to some extent regardless of the size of the image pickup device.

Under such a circumstance, when the image pickup device is downsized, the rattling and the tilt caused when the moving optical system moves becomes relatively large with respect to the size of the image pickup device.
There is a problem that the shake of the captured image also increases accordingly. That is, when the size of the image pickup device is reduced, there is a serious problem that the shake of the captured image becomes large, and the deterioration of the image quality and the quality of the captured image becomes remarkable.

The present invention has been made in order to solve such a problem, and an object thereof is to always obtain a high-quality photographed image even when the moving optical system moves.

[0008]

The image pickup apparatus of the present invention is an image pickup apparatus having an image pickup optical system in which a part of the image pickup apparatus is a movable optical system that can move in the optical axis direction, and when the movement of the movable optical system is started. In addition, an image shake correction means is provided for correcting the displacement or movement of the photographed image in the direction perpendicular to the optical axis at the time of movement or at the end of movement.

According to another aspect of the present invention, a camera shake correction means for correcting camera shake of a picked-up image due to vibration of the image pickup apparatus or camera shake is further provided. Further, at that time, the image shake correcting means is constituted by the camera shake correcting means.

In still another aspect of the invention, in the above-mentioned configuration, a camera shake detection means is further provided, and the camera shake correction is performed on the basis of the detection information on the camera shake and camera shake detected by the camera shake detection means. The means is configured to correct the shake of the captured image due to the shake of the image pickup apparatus or the shake of the hand. Further, image shake detecting means is further provided, and the image shake correcting means corrects the displacement or movement of the photographed image based on the detection information on the shift or movement of the photographed image detected by the image shake detecting means. Is configured as follows.

Another feature of the present invention is that
An operation timing detecting means for detecting the timing for operating the image shake correcting means is further provided, and the image shake correcting means is controlled according to the detection information from the operation timing detecting means.

Still another feature of the present invention is that
Further, a camera shake correction selecting means for selecting either a state in which the camera shake correction means performs the camera shake correction or a state in which the camera shake correction is not performed is further provided, and the camera shake correction selecting means selects a state in which the camera shake correction is performed. If not, or when the movement optical system starts or moves, the camera shake detection means is activated.

[0013]

Since the present invention comprises the above-mentioned technical means, when the moving optical system moves, if the photographed image is shaken due to rattling of the moving optical system, the image shake is corrected by the image shake correcting means. The photographed image is corrected to reduce the amount of noise, and the image shake is reduced. Further, when the shake correction unit is further provided, the above-mentioned picked-up image is corrected so as to reduce the shake of the picked-up image which may be caused by the vibration or the shake of the image pickup apparatus, and the image shake is further reduced.

According to another feature of the present invention, when the detection information for starting the image shake correction is given from the operation timing detecting means, or a state in which the hand shake correction is performed by the hand shake correction selecting means is selected. When not done,
Alternatively, the image shake correction is performed only when the movement of the moving optical system starts or when the movement is performed, and in other cases, the image shake correction operation is stopped.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a first embodiment of the present invention will be described with reference to FIGS.
It will be described based on. Here, FIG. 1 is a schematic configuration diagram of a camera according to the present embodiment, FIG. 2 is a block diagram showing a circuit configuration of the camera according to the present embodiment, and FIG. 3 is a relative positional relationship between two movable lenses for each object distance. Map to display, Figure 4
Is a map that is displayed by dividing the map shown in FIG.
6A to 6E are explanatory views showing the relationship between the subject image on the image pickup surface and the photographed image actually output, and FIG. 6 is a flowchart showing the operation of the camera according to the present embodiment.

In the camera shown in FIG. 1, 1a is a first group fixed lens, 1b is a zoom V lens, 1c is a third group fixed lens, and 1d is a focusing and zooming RR lens. A photographing optical system is configured by these lenses 1a to 1d. Reference numeral 2 denotes a fixed portion which holds the first group fixed lens 1a and the third group fixed lens 1c. Reference numeral 3 denotes a holding barrel for the V lens 1b, which has a sleeve portion 3a. Reference numeral 4 denotes a holding barrel for the RR lens 1d, which has a sleeve portion 4a and a screw portion 4b.

Next, 5 is a screw bar provided with a groove having a constant lead. The screw bar 5 engages with the sleeve portion 3a and is held by the holding barrel 3 so as to be rotatable by a motor 13 described later. Further, 6 is an optical axis, 7 is a guide bar, and the optical axis 6
This is for restricting rotation of the holding barrel 3 in a plane perpendicular to the plane.

Next, reference numerals 8 and 9 are guide bars for restricting rotation of the holding barrel 4 in a plane perpendicular to the optical axis 6. The guide bar 8 is provided on the holding barrel 4.
Is engaged with the sleeve portion 4a. The three guide bars 7, 8 and 9 are held by the fixed portion 2.

Next, 10 is a ball, and the ball 10 is pressed against the groove of the screw bar 5 from the side of the holding barrel 3 by being biased by the spring 11. The V lens 1b is positioned by the ball 10 that moves along the groove as the screw bar 5 rotates.

Next, 12 is a gear, which is attached to the screw bar 5. Reference numeral 13 is a motor for moving the V lens 1b fixed to the holding barrel 3. Reference numeral 14 denotes a gear, which is attached to the output shaft of the motor 13 and is engaged with the gear 12.

Next, 15 is a step motor for moving the RR lens 1d attached to the holding barrel 4, and the screw portion 15a of the output shaft thereof is fitted to the screw portion 4b of the holding barrel 4. There is. Further, 16 is an aperture unit, 17 is a photoelectric conversion element such as a CCD arranged on the image pickup surface, 18 is an electronic viewfinder, 19 is a finder lens, 20 is a power switch of the camera, and 21 is a zoom operation switch of the camera. is there.

Next, 22 is an encoder,
This is for detecting the position of the holding barrel 3 in order to detect the position of the lens 1b. Further, 23 is a switch for detecting the reference position of the RR lens 1d, 24 is a camera control circuit, 25 is a recording unit, and 26 is a power source.

The motor 13 and the step motor 1
5, aperture unit 16, photoelectric conversion element 17, electronic viewfinder 18, power switch 20, zoom operation switch 21, encoder 22, switch 23, recording unit 25,
The power source 26 and the power source 26 are electrically connected to the camera control circuit 24, respectively.

On the other hand, in the circuit configuration of the camera shown in FIG.
Reference numeral 13 'denotes a V lens drive motor control circuit, which controls the drive of the motor 13 for moving the V lens 1b. Reference numeral 15 'denotes an RR lens drive motor control circuit, which drives and controls the step motor 15 for moving the RR lens 1d.

Next, 16 'is an exposure amount control circuit,
The exposure amount is adjusted by controlling the diaphragm unit 16. A photoelectric conversion element control circuit 17 'controls the drive of the photoelectric conversion element 17 in accordance with a predetermined pulse signal. Further, 18 ′ is an electronic viewfinder control circuit, which controls the operation of the electronic viewfinder 18.

Next, 20 is a main switch, which is the same as the power switch 20. Further, 21a is a first zoom switch, 21b is a second zoom switch, and these zoom switches 21a, 21b constitute the zoom operation switch 21. Further, 21 'is the zoom switch 21a, 21b.
2 is a zoom switch state detection circuit for detecting the ON / OFF state of.

Next, reference numeral 22 'is a V lens position detecting circuit, which detects the position of the V lens 1b by detecting the position of the holding barrel 3 using the encoder 22. Reference numeral 23 'is an RR lens position detection circuit, which detects the reference position of the RR lens 1d using the step motor 15 and the switch 23. Further, 25 'is a recording unit control circuit for controlling the operation of the recording unit 25.

Next, 27 is a photographing switch for instructing the start and end of photographing. Also,
An image shake correction amount storage circuit 28 stores information on the image shake direction and the shake amount according to each condition such as the position, the moving direction, and the moving speed of the V lens 1b. In addition, 29
Is an image shake correction control circuit, which corrects the captured image based on the image shake information stored in the image shake correction amount storage circuit 28 so that the image shake caused by the rattling of the V lens 1b is reduced. To do.

The above circuits and switches shown in FIG. 2 are electrically connected to the camera control circuit 24,
The operation of each of these circuits and each switch is controlled by the camera control circuit 24.

Next, the operation of the camera configured as described above will be described. First, when the power switch 20 of the camera is operated by the photographer to turn on the power of the camera,
The camera control circuit 24 rotates the step motor 15 to move the holding barrel 4 fitted to the screw portion 15a of the output shaft thereof in the optical axis direction. As a result, the RR lens 1d held by the holding barrel 4 is moved to a predetermined reference position.

When the RR lens 1d reaches its reference position, the switch 23 is turned on and detected, and at this time, the camera control circuit 24 stops energizing the step motor 15. Then, the absolute position of the RR lens 1d is detected by counting the pulse current applied to the step motor 15 from this reference position. Then R
The R lens 1d is slightly vibrated in the optical axis direction, and the photoelectric conversion element 1
RR at the position where the high frequency component of the video signal from 7 becomes maximum
The lens 1d is moved. By performing the focusing operation as described above, the focus of the subject image is adjusted.

On the other hand, the exposure amount is adjusted by the photoelectric conversion element 17
This is done by controlling the aperture diameter of the aperture unit 16 so that the amount of light incident on is constant. Further, the camera control circuit 24 displays the image obtained by the image pickup by the photoelectric conversion element 17 on the electronic viewfinder 18 so that the photographer can observe the image. Note that such a state will be referred to as a standby state.

When the zoom operation switch 21 is operated by the photographer in such a standby state, the camera control circuit 24 rotates the motor 13 and the step motor 15 to cause the V lens 1b and the RR lens 1 to rotate.
and d are moved in the optical axis direction. At this time, RR lens 1
d moves according to the principle as described above. Also, V
The lens 1b moves according to the following principle.

That is, when the motor 13 rotates, the rotation of the motor 13 is transmitted to the screw bar 5 via the gear 14 and the gear 12. By the way, as mentioned above,
In the groove having the lead of the screw bar 5, the spring 1
The ball 10 is pressed from the side of the holding barrel 3 by being urged by 1.

Therefore, the ball 10 moves along the groove as the screw bar 5 rotates, and the holding barrel 3 moves in the optical axis direction as the ball 10 moves. As a result, the V lens 1b held by the holding barrel 3 moves in the optical axis direction. At this time, the position of the V lens 1b is detected by the encoder 22.

Here, the V lens 1b and the RR lens 1
The principle of the zoom operation performed by moving d in the optical axis direction will be described with reference to FIGS. 3 and 4. The horizontal axis of the graph shown in FIG. 3 represents the position of the V lens 1b, and the vertical axis represents the position of the RR lens 1d. Further, each length of 0.002 m, 0.4 m, 2 m, and ∞ in FIG. 3 indicates the distance from the camera to the subject (subject distance).

In FIG. 3, when the position of the V lens 1b is changed from the wide angle (W) to the telephoto (T), the RR is moved to the position shown by the curve in FIG. 3 according to the subject distance at that time. This indicates that the focus is out of focus unless the lens 1d is moved. Therefore, when the V lens 1b is moved to perform zooming of the subject image, the RR is moved according to the information stored in the map shown in FIG.
It is necessary to move the lens 1d to a predetermined position.

However, the map shown in FIG. 3 shows the positional relationship between the V lens 1b and the RR lens 1d at a typical subject distance as described above, and corresponds to all subject distances. is not. In contrast,
If the maps corresponding to all the subject distances are stored, there is a problem that a huge storage capacity is required to store the maps.

Therefore, in order to solve this problem, the V lens 1b is moved at a constant speed in the direction from the wide angle (W) to the telephoto (T) or in the direction from the telephoto (T) to the wide angle (W). Further, as shown in FIG. 4, the map shown in FIG. 3 is divided into areas I, II, ... And the RR lens 1d moves in accordance with the moving direction and the moving speed of the V lens 1b for each of these areas. The direction and moving speed are stored.

If the RR lens 1d is moved based on this stored information, the map for all subject distances shown in FIG. 3 can be completely traced with a small storage capacity. This method is described in detail in JP-A 1-280709.

As described above, the zoom operation switch 21
Is provided with a first zoom switch 21a and a second zoom switch 21b. And of these,
When the first zoom switch 21a is turned on by the photographer, the motor 13 rotates in the forward direction, and the V lens 1b moves to the wide angle side along the optical axis direction. At this time, the RR lens 1d moves according to the map information as described above.

On the other hand, when the second zoom switch 21b is turned on by the photographer, the motor 13 rotates in the opposite direction, and the V lens 1b moves to the telephoto side along the optical axis direction. At this time, the RR lens 1d moves according to the map information as described above. The first zoom switch 21a and the second zoom switch 21b are turned on at the same time.
It cannot be set to N.

After the subject image is zoomed in this way, when the photographer presses a photographing button (not shown), the photographing switch 27 is turned on. Then, the camera control circuit 24
After confirming that the photographing switch 27 is turned on, starts photographing a subject image. That is, the camera control circuit 24 supplies the video signal obtained from the photoelectric conversion element 17 to the recording unit 25, and the recording unit control circuit 25 ′ performs a predetermined process to record the video signal on the recording medium.

During this photographing, the camera control circuit 24 also
Adjusts the focus and the exposure amount of the subject image described above, and displays the image obtained at the time of this photographing on the electronic viewfinder 18 so that the photographer can observe it.

After that, when the photographer releases a photographing button (not shown), the photographing switch 27 is turned off. Then, when confirming that the photographing switch 27 is turned off, the camera control circuit 24 stops the photographing operation and puts it in the standby state again.

Next, the principle of image shake correction of the camera according to this embodiment will be described with reference to FIG. It should be noted that the image shake referred to here is a shake of a captured image caused by the movement of the moving optical system during the movement of the moving optical system in the photographing optical system or the tilt of the moving mechanism.

For example, as described above, the V lens 1b moves in the optical axis direction when the zoom operation switch 21 is operated when the camera is capable of shooting or during shooting, but at this time, the screw bar 5 and the sleeve portion 3a. And the clearance between the guide bar 7 and the holding barrel 3
Rattling may occur in the lens 1b. As a result, the image picked up by the photoelectric conversion element 17 moves in the vertical direction with respect to the optical axis 6 although slightly, causing an image shake.

By the way, if the lens barrel of the photographic optical system is the same and the position, the moving direction, and the moving speed of the V lens 1b are the same, the image shaking direction and the shaking amount as described above are almost the same. It will be the same value.

Therefore, in the present embodiment, as shown in FIG. 2, an image shake correction amount storage circuit 28 is provided and the V lens 1b is provided.
The information of the direction of the image shake and the amount of shake corresponding to each condition such as the position, the moving direction, the moving speed, etc. are stored in advance when the lens barrel of the photographing optical system is manufactured. And when using the camera,
The image shake is corrected based on the image shake information according to each condition of the V lens 1b at that time.

Here, in FIGS. 5A to 5E, the photoelectric conversion element 17 when the same subject is photographed by the photographing optical system and the focal length is changed from the wide angle to the telephoto at a constant speed.
The subject image above is shown. The solid frame in FIG. 5 indicates the range of the subject image that can be captured by the photoelectric conversion element 17. Moreover, the frame of the broken line shows the range of the subject image actually output as the screen output.

As is apparent from FIG. 5, when zooming is performed from wide angle to telephoto, the range of the image picked up by the photoelectric conversion element 17 shown by the solid line may fluctuate, and image shake may occur. Therefore, image shake correction as described below is started in accordance with the presence / absence of operation of the zoom operation switch 21 or at least one of the changes in the position of the V lens 1b detected by the encoder 22.

That is, for example, in this image shake correction, using the image shake information stored in the image shake correction amount storage circuit 28, the range of the screen output indicated by the broken line is changed from (a) to FIG. It is performed by moving as shown in (e). The image shake correction amount may be changed according to the operation amount of the zoom operation switch 21 and the position information of the V lens 1b detected by the encoder 22.

As described above, the zoom operation switch 21 and the zoom switch state detection circuit 21 'for detecting the ON / OFF state thereof, the encoder 22 and the V lens position detection circuit 22' have a function as operation timing detection means. is doing.

Next, the operation of the camera as described above will be described with reference to FIG. Note that FIG. 6 is a flowchart showing the operation of the camera when image blur correction is started by detecting that the zoom operation switch 21 has been operated by the photographer.

In FIG. 6, first, when the power switch 20 is turned on by the photographer and the power of the camera is turned on, the camera control circuit 24 moves the RR lens 1d to the reference position in step P1, and at the same time, the photoelectric switch is operated. Conversion element 1
Drive 7 Then, in step P2, the focus of the subject image is adjusted and the exposure amount is adjusted. Step P
In 3, the image obtained by the image pickup by the photoelectric conversion element 17 is displayed on the electronic viewfinder 18.

Then, in step P4, the positions of the V lens 1b and the RR lens 1d are detected, and in step P5, the photographing area is determined. Further, in Step P6, representative information is read out from the information on the moving speed and moving direction of the RR lens 1d corresponding to the moving speed and moving direction of the V lens 1b as shown in FIG. Then, Step P7
Wait until the shooting switch 27 is turned on. The camera control circuit 24 puts the camera in the standby state as described above.

Under such a standby state, the first and second zoom switches 21 are set in steps P8 and P10.
The operation states of a and 21b are detected. And step P
When the photographer turns on the first zoom switch 21a in 8, the camera control circuit 24 determines the V lens 1 in step P9.
While b is moved to the wide-angle side, the RR lens 1d is moved to the corresponding appropriate position according to the information read in step P6. Further, the image shake correction as described above is started using the image shake information stored in the image shake correction amount storage circuit 28.

On the other hand, in step P8, the photographer does not turn on the first zoom switch 21a, but in step P10 the second zoom switch 21a is turned on.
When the zoom switch 21b of No. 1 is turned on, the camera control circuit 24 performs the same process as described above in step P1.
1 to move the V lens 1b to the telephoto side,
The lens 1d is moved to the corresponding appropriate position. Also,
Image shake correction is started using the image shake information.

When the first zoom switch 21a and the second zoom switch 21b are not turned on by the photographer, steps P10 to P20.
After stopping the zoom operation and image shake correction operation,
It returns to step P4. On the other hand, as described above, step P
After performing the zooming and the accompanying image shake correction in Steps P8 and P9 or Steps P10 and P11, perform Step P7.
Return to.

When the photographer turns on the photographing switch 27 in step P7, the camera control circuit 24 starts video recording in step P12. During this photographing, the photographer selects the first zoom switch 2 in step P13.
When 1a is turned on, the camera control circuit 24 moves the V lens 1b and the RR lens 1d to the wide-angle side and starts image shake correction in the same manner as the process in Step P9 in Step P14.

If the photographer does not turn on the first zoom switch 21a in step P13 and turns on the second zoom switch 21b in step P15, the camera control circuit 24 executes the processing in step P11 in step P16. Similarly, the V lens 1b and the RR lens 1d
Move to the telephoto side and start image shake correction.

In this way, steps P13 and P14
Alternatively, after performing zooming and accompanying image shake correction in steps P15 and P16, the process proceeds to step P18,
It is confirmed whether or not the photographing switch 27 is still turned on. If the first zoom switch 21a and the second zoom switch 21b are not turned on, or if they are turned off by the photographer after being turned on, the zoom operation and the image shake correction operation are performed in step P17. After stopping and, go to Step P18.

Then, in step P18, the photographing switch 2
When it is confirmed that 7 is turned on, step P
Returning to step 13, the processes of steps P13 to P17 are repeated. On the other hand, when it is confirmed that the photographing switch 27 is not turned on in step P18, the video recording is stopped in step P19, the zoom operation and the image shake correction operation are stopped in step P20, and then the process returns to step P4. . Then, until the power switch 20 of the camera is turned off,
The above processing is repeated.

Next, a second embodiment of the present invention will be described with reference to FIGS. 7 and 8. Here, FIG. 7 is a schematic configuration diagram of a camera according to the present embodiment, and FIG. 8 is a block diagram showing a circuit configuration of the camera according to the present embodiment. In FIGS. 7 and 8, the components denoted by the same reference numerals as those shown in FIGS. 1 and 2 have the same functions, and thus duplicated description will be omitted.

The flowchart showing the overall operation of the camera is the same as that shown in FIG. further,
A characteristic diagram showing a map in which the relative positional relationship between the two movable lenses is displayed for each object distance, and a diagram in which this map is divided and displayed are the same as those shown in FIGS. 3 and 4. It is to be noted that these FIGS. 3 and 4 are also used in the third to tenth embodiments described below.

In FIG. 7, reference numeral 31 denotes a variable apex angle prism, which is constructed by connecting the outer circumferences of two transparent substrates with an elastic member and enclosing a liquid having a high refractive index between these transparent substrates. Is. Further, 32 is an actuator for changing the apex angle of the variable apex angle prism 31, and 33 is a sensor for detecting the apex angle of the variable apex angle prism 31. The actuator 32 and the sensor 33 are electrically connected to the camera control circuit 24.

Further, in FIG. 8, reference numeral 34 is a variable apex angle prism control circuit, which is based on the image shake information stored in the image shake correction amount storage circuit 28, and which corresponds to the result of detection by the sensor 33. The actuator 32 is driven and controlled so as to change the apex angle of the variable apex angle prism 31.

The camera according to the second embodiment differs from the camera according to the first embodiment described above in the operation of image shake correction. The image shake correction method according to the second embodiment will be described below.

Also in the camera of this embodiment, when the subject image is zoomed, the image shake may occur as described above. Therefore, image shake correction as described below is started in accordance with the presence / absence of operation of the zoom operation switch 21 or at least one of the changes in the position of the V lens 1b detected by the encoder 22.

That is, the variable apex angle prism control circuit 34
Drives the actuator 32 according to the detection result of the apex angle output from the sensor 33 on the basis of the image shake information stored in the image shake correction amount storage circuit 28, whereby the apex of the variable apex angle prism 31 is increased. Change the corner. In this way, by changing the apex angle of the variable apex angle prism 31, the optical axis of the light beam incident on the photoelectric conversion element 17 is moved, and the center point of the photographic screen is prevented from moving, whereby image shake correction is performed. I do.

As described above, according to the first and second embodiments, the fluctuation of the image on the image pickup surface caused by the movement of the V lens 1b in the optical axis direction during the zooming of the subject image. Since the correction is performed, it is possible to prevent deterioration of image quality and obtain a high-quality image. Further, since the image shake correction as described above is performed in response to the start of zooming of the subject image, the power consumption of the camera can be saved.

Next, a third embodiment of the present invention will be described with reference to FIGS. Here, FIG. 9 is a block diagram showing the circuit configuration of the camera according to the present embodiment, FIG. 10 is an explanatory diagram showing the relationship between a subject image on the imaging surface and a captured image actually output as screen output, and FIG. FIG. 12 is an explanatory diagram showing a relationship between a subject image having image shake caused by camera shake and a photographed image actually output as a screen output, and FIG. 12 is a flowchart showing an image stabilization operation of the camera according to the present embodiment.

It is to be noted that, in FIG. 9, the elements denoted by the same reference numerals as those shown in FIG. 2 have the same functions, and therefore, duplicated description will be omitted. The general configuration of the camera according to the third embodiment is the same as the general configuration of the camera according to the first embodiment shown in FIG. further,
The flowchart showing the overall operation of the camera is the same as that shown in FIG.

In FIG. 9, a motion detection circuit 36 detects a motion vector of an image by using a predetermined detection frame. Reference numeral 37 denotes a camera shake detection circuit, which detects the presence or absence of camera shake based on the motion vector detected by the motion detection circuit 36.

Next, 38 is an image shake / camera shake correction control circuit, which corrects the image shake based on the image shake information stored in the image shake correction amount storage circuit 28, and is detected by the motion detection circuit 36. The camera shake is corrected based on the motion vector. Reference numeral 39 denotes an image stabilization switch, which is used by the photographer to instruct the start or end of the image stabilization operation.

In the third embodiment, the operations other than the image stabilization operation and the image blur correction operation are the same as the operations described in the first embodiment, so the description thereof will be omitted. Only the shake operation and the image shake correction operation will be described.

First, the image stabilization operation will be described.
In FIG. 9, first, when the anti-vibration switch 39 is turned on by the photographer, the portion of the image on the imaging surface shown in the solid line frame of FIG. Image is output as shown in FIG.
When camera shake occurs in this state, (a) in FIG.
As shown in (c) to (c), the subject image moves on the imaging surface.

The shake of the subject image is detected as follows. In other words, in (a) to (c) of FIG. 11, the image signal of one field before and the image signal of the current field are compared with each other in a predetermined detection frame indicated by a dashed-dotted line frame at five locations, The shake of the subject image is detected by obtaining the direction and amount (motion vector) of the motion of the subject.

Then, in accordance with the motion vector obtained as described above, the camera shake correction is performed by translating the range of screen output indicated by the broken line showing the large quadrangle in FIG. The control of the above series of operations is performed by the camera control circuit 24, the motion detection circuit 36, the camera shake detection circuit 37,
The photoelectric conversion element control circuit 17 'and the image shake / camera shake correction control circuit 38 perform this.

The above-mentioned image stabilization operation will be described more specifically as follows. That is, a plurality of representative points are set in each motion vector detection frame described above. The motion detection circuit 36 performs a correlation calculation between the pixel data of the representative point one field before and the pixel data around the representative point of the current field for all the representative points to obtain the motion vector for each representative point. The camera shake detection circuit 37 determines whether the motion vector thus obtained is due to the camera shake or the motion of the subject according to the conditions described below.

That is, when different motion vectors are detected at the respective representative points and the difference between the motion vectors becomes larger and larger, a moving subject exists in the screen. That is,
It is determined that the obtained motion vector is due to the motion of the subject. On the other hand, if all the motion vectors of the representative points point in the same direction and the difference between the motion vectors is small, it is determined that the motion vector is due to camera shake.

When it is determined that the above conditions are satisfied, the screen output range indicated by the broken line in FIG. 11 is left unchanged. On the other hand, when it is determined that the above condition is satisfied, it is assumed that camera shake has occurred, and the screen output range indicated by the broken line in FIG. 11 is translated in accordance with the motion vector obtained as described above. By doing so, camera shake correction is performed.

Next, using the flowchart of FIG.
The operation of camera shake correction as described above will be described. First, in step P21, the photographer selects the image stabilization switch 39.
When is turned on, the value of K representing the field number is initialized to 0 in step P22.

Subsequently, after 1 is added to the value of K in step P23, whether or not the value of K is larger than 1 in step P24, that is, the field image at that time, the image stabilization switch 39 is turned ON. After that, it is determined whether it is the first field image or the second and subsequent field images.

If it is determined that the field image is the first field image, the process proceeds to step P35 to output the first field image to the recording section 25. On the other hand, when it is determined that the field image is the second and subsequent field images, the process proceeds to step P25, and the motion detection circuit 36 detects the motion vector of each representative point.

Then, in the next steps P26 to P33, it is determined whether the motion vector is caused by the motion of the subject.
Alternatively, the camera shake detection circuit 37 determines whether it is due to camera shake. That is, first, in step P26, it is confirmed whether or not there is a difference of a certain value or more between the motion vectors of the representative points.

If it is determined that there is a difference of a certain value or more, the motion vector having a difference of a certain value or more is removed from the motion vectors of the representative points in step P27, and then the above-described step P28 is performed. It is confirmed whether the remaining motion vectors removed in this way are 3 or less.

When both the conditions of steps P26 and P28 are satisfied, the above condition, that is,
Since different motion vectors are detected at the respective representative points and the condition that the difference between the motion vectors becomes larger and larger is satisfied, it is understood that the motion vector detected by the motion detection circuit 36 is due to the motion of the subject.
Therefore, in this case, the process proceeds to step P35 without performing the camera shake correction.

On the other hand, if any one of the conditions in steps P26 and P28 is not satisfied, the above condition is not satisfied. In this case, therefore, in step P2
Proceed to 9. In Step P29, it is confirmed whether or not the motion vector at each representative point has a magnitude larger than a certain value. Here, if each motion vector has a magnitude equal to or greater than a certain value, it is determined that the motion vector is due to the motion of the subject, and the camera shake correction is not performed, and the process proceeds to step P35.
Proceed to.

Further, when each motion vector does not have a magnitude larger than a certain value, it can be considered that the motion vector is due to camera shake. However, since it is possible that the subject is moving slightly in the screen, in order to handle such a case, step P3
At 0 and P31, it is further confirmed whether or not the direction of each motion vector is the same from 10 fields before.

Then, when the direction of each motion vector is the same from 10 fields before, the motion vector is
It is determined that it is due to the slightly moving subject, and the process proceeds to step P35 without performing camera shake correction. When the conditions of steps P30 and P31 are not satisfied, it is determined that the motion vector is due to camera shake, and the process proceeds to step P32, where the camera shake correction amount of the Kth field image given at that time is set. calculate.

As described above, even when it is determined that the detected motion vector is due to the camera shake, if the subject image is displaced from the screen by performing the camera shake correction, the camera shake correction cannot be performed. Not desirable. Therefore, in step P33, it is determined whether or not this is the case, and if so, the process proceeds to step P35 without performing camera shake correction.

On the other hand, if it is determined in step P33 that the subject image subjected to the camera shake correction does not deviate from the screen, the process proceeds to step P34, in which it is given based on the camera shake correction amount obtained in step P32. The image stabilization of the Kth field image is performed. And
In step P35, the Kth field image is output to the recording unit 25.

Next, in Step P36, the image stabilization switch 3
It is confirmed whether 9 is still turned on. If the image stabilization switch 39 is turned off, the process proceeds to step P37 to stop the above image stabilization operation. If the image stabilization switch 39 is still turned on, step P
After storing the K-th field image in the memory at 38, the process returns to step P23 and the above-described image stabilizing operation is repeated.

Next, the image blur correction operation of the camera according to this embodiment will be described. The image shake correction operation according to the present embodiment is almost the same as the image shake correction operation according to the first embodiment described above, but is different in the following points.

That is, the feature of the image blur correction operation of the present embodiment is that the range of the image actually output as the screen output is moved, but the range of the screen output is moved when the above-described camera shake correction is performed. It is in the place of using the function. As a result, as shown in FIG. 9, one image shake
The image blur correction control circuit 38 can control the image blur correction and the image blur correction, and the circuit scale can be reduced.

Next, a fourth embodiment of the present invention will be described with reference to FIGS.
It will be described with reference to FIG. Here, FIG. 13 is a schematic configuration diagram of a camera according to the present embodiment, FIG. 14 is a block diagram showing a circuit configuration of the camera according to the present embodiment, and FIG. 15 is a flow chart showing an image stabilizing operation of the camera according to the present embodiment.

Incidentally, in FIG. 13 and FIG.
And those with the same reference numerals as those shown in FIG.
Since they have the same function, duplicate description will be omitted. The flowchart showing the overall operation of the camera is the same as that shown in FIG.

In FIG. 13, reference numeral 41 denotes a camera shake detection sensor for detecting camera shake, which is composed of a vibration gyro, an angular acceleration sensor and the like. The camera shake detection sensor 41 is electrically connected to the camera control circuit 24. Further, in FIG. 14, reference numeral 42 denotes a camera shake detection circuit, which detects camera shake together with the camera shake detection sensor 41.

In the fourth embodiment, the operations other than the image stabilizing operation and the image blur correcting operation are the same as the operations described in the first embodiment, so the description thereof is omitted. Only the shake operation and the image shake correction operation will be described.

First, the image stabilization operation of this embodiment will be described with reference to FIGS. In FIG. 15, when the photographer turns on the image stabilization switch 39 in step P41, the camera shake detection circuit 42 including the camera shake detection sensor 41 is activated in step P42. When camera shake occurs in this state, camera shake is detected by the camera shake detection sensor 41 in step P43.

Then, in step P44, the camera control circuit 24 determines the adjustment amount and the adjustment direction of the apex angle of the variable apex angle prism 31 based on the detection result by the camera shake detection sensor 41. The adjustment amount and the adjustment direction are set so that the movement of the captured image by the photoelectric conversion element 17 caused by the shake of the camera is corrected.

In the next step P45, the actuator 32 is driven by the variable apex angle prism control circuit 34, and the apex of the variable apex angle prism 31 is adjusted based on the apex angle adjustment amount and the adjustment direction determined in the above step P44. The corners are adjusted. By performing the image stabilization in this way, deterioration of the captured image due to the image stabilization is prevented.

Next, in Step P46, the image stabilization switch 3
It is confirmed whether 9 is still turned on, and when the image stabilization switch 39 is turned on, the process returns to step P43 to continue the above image stabilization operation. When the image stabilization switch 39 is turned off, the process proceeds to step P47 to stop the operation of the camera shake detection circuit 42 and stop the image stabilization operation.

Next, the image shake correction of this embodiment will be described. In the present embodiment, the variable apex angle prism control circuit 34 operates the actuator according to the detection result of the apex angle output from the sensor 33 based on the image shake information stored in the image shake correction amount storage circuit 28. Drive 32.
As a result, the apex angle of the variable apex angle prism 31, which is also used when performing the above-described camera shake correction, is changed to move the optical axis of the light beam incident on the photoelectric conversion element 17,
Image shake correction is performed by preventing the center point of the shooting screen from moving.

As described above, according to the third and fourth embodiments, in addition to the correction of the image shake, the shake of the image caused by the hand shake is also corrected, so that a higher quality image is obtained. be able to.

By the way, in the above-described first to fourth embodiments, the image shake caused by the rattling of the V lens 1b when the V lens 1b moves in the optical axis direction during the zooming of the subject image is performed. The case of correction is described. Further, a case will be described in which the image blur correction is started according to at least one of the presence / absence of the operation of the zoom operation switch 21 when the camera is used or the change in the position of the V lens 1b detected by the encoder 22. There is.

However, as described above, when the subject image is zoomed, the RR lens 1d also moves in the optical axis direction, and thus the shaking of the RR lens 1d during this movement may cause image shake. Also, since the RR lens 1d moves in the optical axis direction even during the focusing operation of the subject image, the shaking of the RR lens 1d during this movement may cause image shake.

Therefore, the following fifth to eighth embodiments will be described.
In this embodiment, the image shake can be corrected even in the standby state where the focus of the subject image is adjusted, and the image shake caused by the rattling of the RR lens 1d can be dealt with. By doing so, it becomes possible to perform image shake correction with higher accuracy.

Further, in the above-described first to fourth embodiments, in the case where the image shake of the subject image is corrected based on the predetermined image shake information stored in advance in the image shake correction amount storage circuit 28. About. On the other hand, in the fifth to eighth examples, the amount of rattling of the V lens 1b and the RR lens 1d and the direction thereof are actually detected,
The image shake correction of the subject image is performed based on the information of the image shake correction amount calculated using the result of this detection and the correction direction thereof.

First, the fifth embodiment of the present invention will be described with reference to FIGS.
It will be described with reference to FIG. Here, FIG. 16 is a schematic configuration diagram of a camera according to the present embodiment, FIG. 17 is a block diagram showing a circuit configuration of the camera according to the present embodiment, and FIG. 18 is a flowchart showing an overall operation of the camera according to the present embodiment. . 16 and 17, the components denoted by the same reference numerals as those shown in FIGS. 1 and 2 have the same functions, and thus detailed description thereof will be omitted.

In FIG. 16, 44 is a displacement sensor for detecting the displacement of the holding barrel 3 in the direction perpendicular to the optical axis 6, and 45 is a displacement sensor for the holding barrel 4 in the direction perpendicular to the optical axis 6. It is a displacement sensor for detecting. These displacement sensors 44 and 45 are electrically connected to the camera control circuit 24.

Further, in FIG. 17, reference numeral 46 denotes a displacement detection circuit, which responds to the displacement of the holding lens barrel 3 detected by the displacement sensor 44 in accordance with the displacement of the V lens 1b in the direction perpendicular to the optical axis 6 ( Rattling) is detected. 47
Is a displacement detection circuit for detecting the displacement (rattle) of the RR lens 1d in the direction perpendicular to the optical axis 6 according to the displacement of the holding barrel 4 detected by the displacement sensor 45. .

Next, 48 is an image shake detection circuit,
The image shake amount and the direction thereof are obtained based on the information on the position and rattling of the lens 1b and the RR lens 1d. An image shake correction control circuit 49 corrects the image shake of the image on the basis of the information on the image shake amount and the direction obtained by the image shake detection circuit 48.

In the camera according to the fifth embodiment, in order to correct the image shake of the image, first, the V lens position detection circuit 22 'including the encoder 22 detects the position of the V lens 1b, and the step motor 15 is used. And switch 2
RR lens position detection circuit 23 'including
The position of d is detected.

Further, the displacement detection circuit 46 including the displacement sensor 44 detects rattling when the V lens 1b is moved, and the displacement detection circuit 47 including the displacement sensor 45 is rattled when the RR lens 1d is moved. To detect.

Then, the image shake detection circuit 48 obtains the image shake amount and its direction based on the detection result of the position and rattling of the V lens 1b and the RR lens 1d. Thereafter, based on the information on the image shake amount and the direction obtained in this way, the image shake correction control circuit 4 is operated by the following method.
9 corrects the image shake.

That is, for example, when the focal length of the subject image is changed from the wide angle to the telephoto, (a) to (f) of FIG.
It is assumed that the image shake as shown in (e) occurs. And
The range of the subject image actually output as a screen output in the image shake direction by the amount of the image shake of the V lens 1b and the RR lens 1d obtained as described above (the range indicated by the broken line in FIG. 5). ) Is moved to correct the image shake of the subject image.

Next, the overall operation of the camera of this embodiment will be described with reference to the flowchart of FIG. It should be noted that, in FIG. 18, the processes given the same numbers as the step numbers in the flowchart shown in FIG. 6 indicate that they are the same processes, and therefore duplicated description thereof will be omitted.

In this embodiment, the first zoom switch 21 is operated as in the operation described in the flowchart of FIG.
The image blur correction is not started according to the operation state of the a or the second zoom switch 21b, but the focusing operation and the exposure amount adjusting operation of the subject image are started in Step P2 of FIG. 18, and then in Step P51. Image shake correction is started.

Therefore, steps P52 and P in FIG.
In the processing of 53, P54, P55, the V lens 1b
Also, the RR lens 1d is only moved to the wide-angle side or the telephoto side, and no instruction to start image shake correction is issued. Further, in steps P56 and P57, only the instruction to stop the zoom operation is given, and the instruction to stop the image shake correction operation is not issued.

As described above, by starting the image shake correction regardless of whether the zoom operation switch 21 is operated and performing the image shake correction even in the above-described standby state, the focusing operation of the subject image is performed. V lens 1 at time
It is also possible to correct the image shake that accompanies the movement of b and the RR lens 1d.

Next, a sixth embodiment of the present invention will be described with reference to FIGS. 19 and 20. Here, FIG. 19 is a schematic configuration diagram of the camera according to the present embodiment, and FIG. 20 is a block diagram showing a circuit configuration of the camera according to the present embodiment. 19 and 20, the components denoted by the same reference numerals as those shown in FIGS. 7 and 8 have the same functions, and detailed description thereof will be omitted.
Also, the flow chart showing the overall operation of the camera is
It is the same as that shown in FIG.

In FIG. 19, reference numeral 51 denotes a sensor having a light emitting portion and a light receiving portion. By receiving the reflected light of the light emitted from the light emitting portion in the holding barrel 3 by the light receiving portion,
The holding lens barrel 3, that is, the wobbling of the V lens 1b is detected. Reference numeral 52 denotes a sensor that detects the rattling of the holding barrel 4, that is, the RR lens 1d, by receiving the reflected light of the light emitted from the light emitting unit in the holding barrel 4 at the light receiving unit. The sensors 51 and 52 are electrically connected to the camera control circuit 24.

Further, in FIG. 20, 53 is the V lens 1
The displacement detection circuit for b detects the displacement of the V lens 1b in the direction perpendicular to the optical axis 6 together with the sensor 51. Reference numeral 54 denotes a displacement detection circuit for the RR lens 1d, which detects the displacement of the RR lens 1d in the direction perpendicular to the optical axis 6 together with the sensor 52.

Next, 55 is an image shake detection circuit,
The image shake amount and the direction thereof are obtained based on the information on the position and rattling of the lens 1b and the RR lens 1d. Further, 56 is a variable apex angle prism control circuit,
The apex angle of the variable apex angle prism 31 is changed on the basis of the information on the image shake amount and the direction obtained by the image shake detecting circuit 55 to correct the image shake of the image.

The image blur correction operation according to this embodiment will be described below. In the camera shown in FIGS. 19 and 20, when the V lens 1b moves in the optical axis direction due to zooming of a subject image or the like, if the holding barrel 3 rattles, the holding barrel 3 rattles. That is, the amount of movement of the V lens 1b in the direction perpendicular to the optical axis 6 and its direction are detected by the sensor 51.

Similarly, when the RR lens 1d moves in the optical axis direction due to zooming of a subject image or the like, if the holding barrel 4 rattles, that is, the holding barrel 4 rattles, that is, RR lens 1 in the direction perpendicular to the optical axis 6
The amount of movement of d and its direction are detected by the sensor 52. Further, the positions of the V lens 1b and the RR lens 1d in the optical axis direction at this time are detected by the encoder 22, the step motor 15 and the switch 23.

Then, the image shake detection circuit 55 detects the amount of movement of the V lens 1b and the RR lens 1d in the direction perpendicular to the optical axis, the detection result in that direction, and the position detection result in the optical axis direction. Based on this, the image shake amount and its direction are obtained. After that, the variable apex angle prism control circuit 56 performs image shake correction by the method described below, based on the information on the image shake amount and the direction obtained as described above.

That is, based on the information on the image shake amount and the direction thereof, the actuator 32 operates in accordance with the detection result of the apex angle output from the sensor 33 so that the center point of the photographing screen does not move due to the image shake. By driving and changing the apex angle of the variable apex angle prism 31, image shake correction is performed.

Next, a seventh embodiment of the present invention will be described with reference to FIG. The seventh embodiment is an example in which the third embodiment shown in FIG. 9 and the fifth embodiment shown in FIG. 17 are combined and modified. Therefore, in the block diagram showing the circuit configuration of the camera according to the seventh embodiment,
Those given the same reference numerals as those shown in FIG. 9 and FIG. 17 indicate that they have the same function.

The general structure of the camera according to the seventh embodiment is the same as the general structure of the camera according to the fifth embodiment shown in FIG. Further, the flowchart showing the overall operation of the camera is the same as that shown in FIG. 18, and the flowchart showing the image stabilization operation is the same as that shown in FIG.

In FIG. 21, the motion detecting circuit 36 and the camera shake detecting circuit 37 determine the motion vector in a predetermined detection frame in the same manner as described in the third embodiment shown in FIG. Then, it is determined whether the motion vector is caused by the motion of the subject or camera shake.

When it is determined that the motion vector is due to camera shake, the image shake / camera shake correction control circuit 58 actually outputs it as a screen output in the same manner as in the third embodiment according to the motion vector. Image stabilization is performed by moving the range of the image output to.

On the other hand, the displacement detection circuits 46 and 47 and the image shake detection circuit 48 are similar to those described in the fifth embodiment shown in FIG.
The image shake amount of the R lens 1d and its direction are obtained. Then, the image shake / camera shake correction control circuit 58 uses the function of moving the range of the screen output when performing the above-described camera shake correction, and moves the range of the image actually output as the screen output to move the image. Correct the shake.

Next, an eighth embodiment of the present invention will be described with reference to FIGS. 22 and 23. This eighth embodiment is
This is an example in which the fourth embodiment shown in FIGS. 13 and 14 and the sixth embodiment shown in FIGS. 19 and 20 are combined and modified.

Therefore, in FIG. 22, which is a schematic block diagram of a camera according to the eighth embodiment, those designated by the same reference numerals as those shown in FIGS. 13 and 19 have the same functions. Shows. FIG. 23 is a block diagram showing the circuit configuration of the camera of this embodiment.
In FIG. 14, the components having the same symbols as those shown in FIGS. 14 and 20 have the same function.

In the camera according to the eighth embodiment, the flowchart showing the overall operation of the camera is
It is the same as that shown in FIG. 18, and the flowchart showing the image stabilization operation is the same as that shown in FIG.

In FIG. 22 and FIG. 23, the camera shake detection circuit 42 including the camera shake detection sensor 41 and the camera control circuit 24 are controlled by the camera shake in the same manner as described in the fourth embodiment shown in FIG. The generated camera shake is detected, and the adjustment amount and the adjustment direction of the apex angle of the variable apex angle prism 31 are determined based on the detection result.

Then, the variable apex angle prism control circuit 60
By adjusting the apex angle of the variable apex angle prism 31 by driving the actuator 32 based on the information on the apex angle adjustment amount and the adjustment direction so that the captured image does not move due to camera shake. Perform camera shake correction.

On the other hand, the displacement detection circuits 53 and 54 and the image shake detection circuit 55 are similar to those described in the sixth embodiment shown in FIG. 20, and the image shake amounts of the V lens 1b and the RR lens 1d are the same. And its direction.

Then, the image shake / shake correction control circuit 60
Uses the variable apex angle prism 31, the actuator 32, and the sensor 33 used when performing the above-described camera shake correction, and the center point of the photographing screen moves due to the image shake based on the information on the image shake amount and the direction thereof. Sensor 33
The image shake correction is performed by driving the actuator 32 in accordance with the detection result of the apex angle output from the device and changing the apex angle of the variable apex angle prism 31. At this time, the above-described camera shake correction may be performed at the same time.

In the fifth to eighth embodiments described above, only the displacement of the V lens 1b or the RR lens 1d in the direction perpendicular to the optical axis 6 is detected to determine the image shake amount and its direction. Instead of obtaining the above, the image shake amount and the direction thereof may be obtained by detecting the rotation of the V lens 1b or the RR lens 1d around the axis perpendicular to the optical axis 6.

Next, a ninth embodiment of the present invention will be described with reference to FIGS.
It will be described with reference to FIG. Here, FIG. 24 is a schematic configuration diagram of a camera according to the present embodiment, FIG. 25 is a block diagram showing a circuit configuration of the camera according to the present embodiment, and FIG.
FIG. 27E is an explanatory diagram showing how the motion vector detection frame on the imaging surface changes while the angle of view changes, FIGS. 27 and 28.
6 is a flow chart showing an image stabilization operation and an image shake correction operation of the camera according to the present embodiment.

Note that in FIG. 24 and FIG.
6 and those denoted by the same reference numerals as those shown in FIG. 21 have the same functions, and thus duplicated description will be omitted. The flowchart showing the overall operation of the camera of this embodiment is the same as that shown in FIG.

The camera according to the ninth embodiment is characterized by an image stabilizing operation and an image shake correcting operation. Hereinafter, first, the image stabilization operation of this embodiment will be described. Third
As described in the embodiment, the image of the part shown in the broken line frame in the image on the imaging surface shown in the solid line frame of FIG. , As shown in FIG. 10B. When camera shake occurs in this state, (a) to (a) of FIG.
As shown in (c), the subject image moves on the imaging surface.

At this time, if the anti-vibration switch 39 is turned on by the photographer, the motion detection circuit 36 and the camera shake detection circuit 37 in FIG. 25 are the same as those described in the third embodiment shown in FIG. In the same manner as described above, the motion vector of each representative point is obtained within the predetermined motion vector detection frame, and it is determined whether the motion vector is caused by the motion of the subject or camera shake.

When it is determined that the motion vector is due to camera shake, the camera shake / image shake correction circuit 62 parallelizes the screen output range indicated by the broken line in FIG. 11 according to the motion vector. Image stabilization is performed by moving the camera.

When the zooming operation and the focusing operation of the subject image are performed in the state where the image stabilization operation is performed as described above,
As shown in (a) to (e) of FIG. 26, the angle of view of the subject image changes. Note that, in FIG. 26, the angle of view is smallest in (a), the angle of view gradually increases from (b) to (d), and the angle of view becomes maximum in (e). It shows the situation.

In such a case, the output range of the image on the image pickup surface does not change, but in the present embodiment, as shown in FIG.
As shown in, the size and position of the motion vector detection frame are changed according to the change of the angle of view. Also,
The positions of the plurality of representative points in the motion vector detection frame are also changed according to the size and position of the motion vector detection frame.

As shown in (c) of FIG. 26, the movement at a certain angle of view when changing from a small angle of view to a large angle of view or when changing from a large angle of view to a small angle of view. A new vector detection frame is provided to detect a motion vector, and the motion vector detection that has been performed up to that point is stopped. By obtaining the motion vector in this way, the camera shake component can be detected in a state in which the influence of the change in the angle of view is removed.

Here, the size and position of the motion vector detection frame and the plurality of representative points contained therein on the image pickup surface are determined by the angle of view or the changing speed of the angle of view. The angle of view and the speed of change of the angle of view are detected by the encoder 22, the step motor 15 and the switch 23 by the V lens 1b and the RR lens 1d.
By detecting the position of.

Further, when this electronic zoom is performed in a camera having an electronic zoom function, FIG. 10, FIG. 11 and FIG.
The size of the screen output range indicated by the broken line in 6 changes. In such a case, the camera shake component is detected by changing the position and size of the motion vector detection frame in accordance with the change in the size of the screen output range. Then, the image shake / camera shake correction control circuit 62 corrects the camera shake component.

Next, the image shake correcting operation during the image stabilizing operation will be described. It should be noted that the image shake referred to here is a shake of a photographed image caused by the movement of the moving optical system during the movement of the moving optical system in the photographing optical system.

As described above, the V lens 1b and the RR lens 1d are moved in the optical axis direction when the zoom operation switch 21 is operated by the photographer when the camera is capable of photographing or during photographing. At this time, the V lens 1b may rattle due to the clearance between the screw bar 5 and the sleeve portion 3a or between the guide bar 7 and the holding barrel 3 shown in FIG. Further, the clearance between the guide bars 8 and 9 and the holding barrel 4 may cause rattling of the RR lens 1d.

Further, even when the RR lens 1d moves in the optical axis direction due to the focusing operation of the subject image, the RR lens 1d
Rattle may occur. As a result, the captured image on the photoelectric conversion element 17 is slightly different from the optical axis 6.
It may move in the vertical direction with respect to, and image shake may occur.

In other words, the image shake is similar to a hand shake in a picked-up image on the photoelectric conversion element 17 because the moving optical system rattles when the moving optical system moves in the optical axis direction during the zoom operation or the focusing operation. It occurs when a phenomenon occurs.

On the other hand, as described above, the image stabilization operation of this embodiment is intended to correct the movement of the photographed image in the direction perpendicular to the optical axis 6 due to camera shake.
Therefore, since the image shake component is included in the shake component here, the image shake is also corrected at the same time during the image stabilization operation as described above.

That is, when an image shake occurs during the image stabilization operation, the motion detection circuit 36, the camera shake detection circuit 37, and the camera shake / image shake composite component detection circuit 64 cause the composite component of the camera shake component and the image shake component. Is detected. Then, the image shake / image shake correction circuit 62 corrects the image shake of the image so that the composite component of the hand shake component and the image shake component is eliminated.

In the above-mentioned example, the motion vector detection frame is set to five, but the present invention is not limited to this, and any number of detection frames may be provided.

Further, the V lens 1b and the RR lens 1d
Based on the information such as the moving direction and the moving speed of, and the position of the motion vector detection frame and each of its representative points, the movement vector of the subject image due to the change of the angle of view on the imaging surface (angle of view change vector) is obtained, The movement vector of the subject image is detected at each of the representative points. Then, a motion vector due to camera shake may be detected based on the movement vector at each representative point and the angle-of-view change vector.

Further, as described above, instead of detecting the motion vector due to the camera shake according to the change of the angle of view, the motion vector due to the camera shake may be detected according to the photographing magnification or the changing speed thereof. Further, a motion vector due to camera shake may be detected in accordance with both the angle of view and the shooting magnification, and the speed of change thereof.
At this time, the view angle change component / magnification change component detection circuit 63 detects the view angle change component and the shooting magnification change component.

Next, the image shake correcting operation when the camera of this embodiment is not performing the image stabilizing operation will be described. Figure 2
When the image stabilization switch 39 shown in 5 is turned off, the above-described image stabilization operation (shake correction operation) is not performed. In this case, the camera shake detection sensor 41 detects the camera shake amount and the direction thereof.

On the other hand, V detected by the encoder 22
Based on the position information of the lens 1b and the position information of the RR lens 1d detected by the step motor 15 and the switch 23, the movement amount of the captured image in the photoelectric conversion element 17 due to camera shake and the direction thereof are calculated. At the same time, the amount of movement and the direction of the captured image of the photoelectric conversion element 17 due to the composite component of the camera shake component and the image shake component are calculated.

Then, the movement amount and its direction of the photographed image are compared with the camera shake amount and its direction detected by the camera shake detection sensor 41 to calculate a difference value thereof. The amount of movement and the direction of the movement due to the image shake of the captured image by the conversion element 17.
The image shake detection circuit 65 detects such an image shake component. Then, the camera shake / image shake correction circuit 62
Thus, only the image shake component is corrected by the method of changing the range of screen output described above.

In this embodiment, the power consumption is saved by stopping the driving of the camera shake detection sensor 41 during the image stabilization operation of the camera. Further, for example, as in an optical system in which the eccentricity sensitivity and the sag sensitivity of the V lens 1b are higher than that of the RR lens 1d, the movement of the V lens 1b in the direction perpendicular to the optical axis direction and the sag of the V lens 1b. Is much larger than that of the RR lens 1d and has a great influence on the image shake phenomenon,
Image shake correction should be performed only during the zoom operation.

Therefore, in this case, the zoom operation switch 21 is operated by the photographer, or the V lens 1b is moved in the optical axis direction based on the position information of the V lens 1b detected by the encoder 22. Only when it is confirmed by the camera control circuit 24, the camera shake detection sensor 41 is driven to save the power consumption.

However, when a sensor that takes a long time to start is used as the camera shake detection sensor 41, the camera shake detection sensor 41 may be kept driven during the photographing of the camera and the standby state.

Here, the image shake correction operation during the image stabilization operation as described above and the image shake correction operation when the image stabilization operation is not performed will be described with reference to FIGS. 27 and 28.
This will be described in detail with reference to the flowchart of. Note that FIG.
In FIG. 8, since the process given the same number as the step number in the flowchart shown in FIG. 12 is the same process, the duplicated description thereof will be omitted.

In FIG. 27, first, when the image shake correcting operation is started in step P61, it is determined in step P62 whether or not the image stabilizing switch 39 is turned on by the photographer. Here, when the image stabilization switch 39 is turned ON, the process proceeds to step P22 in FIG. On the other hand, when the image stabilization switch 39 is not turned on, the process proceeds to step P63 and the value of K representing the field number is 0.
Initialized to.

Subsequently, after 1 is added to the value of K in step P64, whether or not the value of K is larger than 1 in step P65, that is, the field image at that time, the image stabilization switch 39 is turned ON. After that, it is determined whether it is the first field image or the second and subsequent field images.

If it is determined that the field image at that time is the first field image, the process proceeds to step P78 and the first field image is output to the recording section 25. On the other hand, when it is determined in step P65 that the field image at that time is the second and subsequent field images, the process proceeds to step P66, and the camera shake detection sensor 41 is activated.

In the next step P67, the camera shake detection sensor 41 detects the camera shake direction and the camera shake amount. On the other hand, in Step P68, the encoder 22 detects the position of the V lens 1b, and the step motor 15 and the switch 23 detect the position of the RR lens 1d. Then, in steps P69 and P70,
Based on the detection results in steps P67 and P68, the amount of movement of the captured image in the photoelectric conversion element 17 due to camera shake and its direction, and the amount of movement due to image shake and its direction are calculated.

Then, in step P71, the movement vector of the V lens 1b, which is composed of the information on the moving direction and the moving speed of the V lens 1b, is detected, and the RR lens 1d is composed of the information on the moving direction and the moving speed of the RR lens 1d. Detect the movement vector of. Then, in step P72, based on the movement vector detected in this way and the position information of the motion vector detection frame and each representative point at that time, an image including information on the changing direction and changing speed of the angle of view is formed. Find the angle change vector.

Then, in step P73, the position and size of the motion vector detection frame and each of its representative points are changed in accordance with the angle-of-view change vector obtained as described above. Detect the motion vector of a point. Then, in step P75, the correction amount of camera shake and image shake of the Kth field image given at that time is calculated, and in the next step P76, the image shake correction amount of the Kth field image is calculated. .

Then, based on the image shake correction amount obtained as described above in step P77, image shake correction of the Kth field image is performed by a method of changing the range of screen output. Then, in step P78, the K-th field image is output to the recording unit 25, and in step P79.
After storing the above Kth field image in memory,
In step P80, it is confirmed whether or not the image stabilization switch 39 is turned on.

Here, when the anti-shake switch 39 is turned off, the process returns to step P64 and the above-described image shake correction operation is continued. On the other hand, the image stabilization switch 39 is O
If it is set to N, the driving of the camera shake detection sensor 41 is stopped in step P81, and then step P22 in FIG.
Proceed to. The operation described above is the detail of the image shake correction operation when the image stabilization operation is not performed.

As described above, the process after step P22 shown in FIG. 28 is almost the same as the process after step P22 shown in FIG. 12, but different in the following points. That is, in the present embodiment, when it is determined in step P24 that the value of K is greater than 1, the motion vector of each representative point in the motion vector detection frame is not immediately detected, but first, in steps P82 to P84. so,
By performing the same processing as the processing in steps P71 to P73 described above, the position and size of the motion vector detection frame and its respective representative points are changed.

Further, in the processing in steps P86 to P88, not only the camera shake component is targeted for correction, but the composite component of the camera shake component and the image shake component is targeted for correction. Accordingly, during the image stabilization operation for correcting the image shake caused by the camera shake, the image shake caused by the wobbling of the moving optical system can be simultaneously corrected. After stopping the image stabilizing operation in step P37, the process proceeds to step P63 in FIG. 27 to start the image shake correcting operation when the image stabilizing operation as described above is not performed.

Next, a tenth embodiment of the present invention will be described with reference to FIG.
~ It demonstrates based on FIG. Here, FIG. 29 is a block diagram showing the circuit configuration of the camera according to the present embodiment, and FIGS. 30 and 31 are flowcharts showing the image stabilization operation and image shake correction operation of the camera according to the present embodiment.

Note that, in FIG. 29, components denoted by the same reference symbols as those shown in FIG. 25 have the same functions, and therefore, duplicated description will be omitted. The schematic structure of the camera according to the tenth embodiment is the same as that shown in FIG. 13, and the flowchart showing the overall operation of the camera is the same as that shown in FIG.

In the tenth embodiment, the operations other than the image stabilization operation and the image shake correction operation are the same as those of the ninth embodiment described above. Therefore, the image stabilization operation and the image shake correction will be described below. Only the operation will be described.

In this embodiment, when the subject image shakes due to camera shake as in the ninth embodiment, the variable apex angle prism control circuit 67 operates as described in the ninth embodiment. The shake of the subject image is corrected so that the motion vector of the subject image detected in step S1 becomes zero.

That is, the variable apex angle prism control circuit 67
Under the control of the camera control circuit 24, drives the actuator 32 according to the detection result of the apex angle output from the sensor 33 so that the movement of the captured image due to the camera shake in the photoelectric conversion element 17 is corrected. Then, the apex angle of the variable apex angle prism 31 is changed. As a result, it is possible to prevent the captured image from deteriorating due to camera shake.

When an image shake occurs during such image stabilizing operation, the image shake and the shake of the subject image due to the hand shake are simultaneously corrected, as in the case of the ninth embodiment. Is.

When an image shake occurs when the image stabilizing operation is not performed, the image shake detecting circuit 65 detects the image shake detecting sensor 41 in the same manner as described in the ninth embodiment. A difference value between the camera shake amount and the direction thereof and the movement amount and the direction of the captured image calculated based on the position information of the V lens 1b and the RR lens 1d is calculated. Then, the difference value is set as the movement amount and the direction thereof due to the image shake of the captured image by the photoelectric conversion element 17.

Under the control of the camera control circuit 24, the variable apex angle prism control circuit 67 forms an image based on the image shake information of the photographed image and the position information of the V lens 1b and the RR lens 1d. The adjustment amount of the apex angle of the variable apex angle prism 31 for correcting the shake is determined. Then, based on the information on the adjustment amount of the apex angle, the actuator 32
Is driven to adjust the apex angle of the variable apex angle prism 31, so that only the image shake component is corrected.

Here, the image shake correction operation during the image stabilization operation as described above and the image shake correction operation when the image stabilization operation is not performed will be described with reference to FIGS. 30 and 31.
This will be described in detail with reference to the flowchart of. Note that FIG.
0 and FIG. 31, it is shown that the processes given the same step numbers as the step numbers in the flowcharts shown in FIGS. 27 and 28 are the same processes, and thus the duplicated description thereof will be omitted.

In this embodiment, when the image shake occurs while the image stabilizing operation is not performed, first, the step P in FIG.
The correction amount of camera shake and image shake is calculated in the process from 63 to step P75. Next, in Step P91, the adjustment amount of the apex angle of the variable apex angle prism 31 for correcting the image shake is determined based on the information of the correction amount and the position information of the V lens 1b and the RR lens 1d.

Then, in step P92, the apex angle of the variable apex angle prism 31 is adjusted on the basis of the above information on the amount of apex angle adjustment, so that only the image shake component is corrected. Then, in step P93, the captured image at that time is recorded in the recording unit 25.
Then, in step P79, the Kth field image is stored in the memory.

When an image shake occurs during the image stabilization operation, first, the motion vector of each representative point is obtained in the process of steps P22 to P31 and steps P82 to P84 of FIG. Check if the motion vector is due to camera shake. When it is determined that the motion vector is due to camera shake, the adjustment amount of the apex angle of the variable apex angle prism 31 for correcting the camera shake and the image shake is determined in step P94.

Then, in step P95, the apex angle of the variable apex angle prism 31 is adjusted based on the information of the amount of adjustment of the apex angle to correct the camera shake and the image shake component, and then in a step P96. Recorded image 25
Output to. By doing so, at the time of the image stabilization operation for correcting the image shake caused by the camera shake, the image shake caused by the rattling of the moving optical system is also corrected at the same time.

As described above, the ninth embodiment and the tenth embodiment
Although the example of the above has been described, the plurality of lenses 1a to 1d
The taking optical system configured by is not limited to the above-described form. That is, any optical system may be used as long as it has an imaging angle of view detection device such as a zoom position detection device or a focus position detection device. Further, the present invention is applied to a camera in which a photoelectric conversion element such as an image pickup element is arranged on a surface optically equivalent to an image pickup surface such as a secondary image formation surface, and autofocusing is performed by this photoelectric conversion element. It is also possible.

The first to the first embodiments described above are used.
In Example 0, the case where the present invention is applied to a camera having a built-in photographing optical system has been described. However, even if the present invention is applied to a camera in which the photographing optical system can be detachably mounted. It goes without saying that it is good. In this case, each circuit such as the camera control circuit 24 described above may be provided on the camera side or the photographing optical system side.

[0195]

As described above, according to the present invention, the image shake correcting means for correcting the shake of the photographed image on the image pickup surface caused when the moving optical system moves in the optical axis direction is provided. When the captured image is shaken due to rattling or the like during movement of the moving optical system, the captured image can be corrected to reduce the image shake.

Further, according to another feature of the present invention, since the shake correction means is further provided, it is possible to reduce the shake of the photographed image which may be caused by the shake of the image pickup apparatus or the shake of the hand. Since the shake can be further reduced, a high-quality image can always be obtained.

Further, as another feature of the present invention, an operation timing detecting means for detecting the timing for operating the image shake correcting means is further provided, and the image shake correcting means is operated according to the detection result. Alternatively, camera shake correction selecting means for selecting whether the camera shake correction means performs the camera shake correction or the state in which the camera shake correction is not performed is further provided, and the camera shake correction selecting means selects the camera shake correction state. If there is not, or when the movement optical system starts moving or when the movement of the moving optical system starts, the camera shake detection means is activated, so image shake correction is performed only in the above cases, and in other cases, image shake correction is performed. The operation can be stopped so that power consumption can be saved compared to the case where image stabilization is always performed. It can be.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a camera according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a circuit configuration of the camera according to the first embodiment.

FIG. 3 is a characteristic diagram showing a map in which a relative positional relationship between two movable lenses is displayed for each subject distance.

FIG. 4 is a diagram showing a map in which the map shown in FIG. 3 is divided and displayed.

FIG. 5 is a diagram showing a relationship between a subject image on an imaging surface and a captured image actually output.

FIG. 6 is a flowchart showing the overall operation of the camera of the first embodiment.

FIG. 7 is a schematic configuration diagram of a camera according to a second embodiment of the present invention.

FIG. 8 is a block diagram showing a circuit configuration of a camera according to a second embodiment.

FIG. 9 is a block diagram showing a circuit configuration of a camera according to a third embodiment of the present invention.

FIG. 10 is an explanatory diagram showing a relationship between a subject image on an imaging surface and a captured image that is actually output.

FIG. 11 is an explanatory diagram showing a relationship between a subject image on the image pickup surface in which an image blur occurs due to a camera shake and a photographed image actually output.

FIG. 12 is a flowchart showing an image stabilizing operation of the camera of the third embodiment.

FIG. 13 is a schematic configuration diagram of a camera according to a fourth embodiment of the present invention.

FIG. 14 is a block diagram showing a circuit configuration of a camera according to a fourth embodiment.

FIG. 15 is a flowchart showing an image stabilization operation of the camera of the fourth embodiment.

FIG. 16 is a schematic configuration diagram of a camera according to a fifth embodiment of the present invention.

FIG. 17 is a block diagram showing a circuit configuration of a camera according to a fifth example.

FIG. 18 is a flowchart showing the overall operation of the camera of the fifth embodiment.

FIG. 19 is a schematic configuration diagram of a camera according to a sixth embodiment of the present invention.

FIG. 20 is a block diagram showing a circuit configuration of a camera according to a sixth embodiment.

FIG. 21 is a block diagram showing a circuit configuration of a camera according to a seventh embodiment of the present invention.

FIG. 22 is a schematic configuration diagram of a camera according to an eighth embodiment of the present invention.

FIG. 23 is a block diagram showing a circuit configuration of a camera according to an eighth example.

FIG. 24 is a schematic configuration diagram of a camera according to a ninth embodiment of the present invention.

FIG. 25 is a block diagram showing a circuit configuration of a camera according to a ninth embodiment.

FIG. 26 is an explanatory diagram showing how the motion vector detection frame on the imaging surface changes while the angle of view changes.

FIG. 27 is a flowchart showing the operation of image shake correction when the image stabilizing operation is not performed in the camera of the ninth embodiment.

FIG. 28 is a flowchart showing an image shake correcting operation at the time of the image stabilizing operation in the camera of the ninth embodiment.

FIG. 29 is a block diagram showing a circuit configuration of a camera according to a tenth embodiment of the present invention.

FIG. 30 is a flowchart showing the operation of image shake correction when the image stabilizing operation is not performed in the camera of the tenth embodiment.

FIG. 31 is a flowchart showing the operation of image shake correction during the image stabilization operation in the camera of the tenth embodiment.

[Explanation of symbols]

 1b V lens 1d RR lens 3,4 Holding barrel 3a, 4a Sleeve part 5 Screw bar 7,8,9 Guide bar 15 Step motor 17 Photoelectric conversion element 17 'Photoelectric conversion element control circuit 21 Zoom operation switch 21a First zoom Switch 21b Second zoom switch 21 'Zoom switch state detection circuit 22 Encoder 22' V lens position detection circuit 23 Switch 23 RR lens position detection circuit 24 Camera control circuit 28 Image shake correction amount storage circuit 29 Image shake correction control circuit 31 Variable Vertical angle prism 32 Actuator 33 Sensor 34 Variable vertical angle prism control circuit 36 Motion detection circuit 37 Hand shake detection circuit 38 Image shake / shake correction control circuit 39 Anti-shake switch 41 Hand shake detection circuit 42 Hand shake detection circuit 44 V lens displacement sensor 4 RR lens displacement sensor 46 V lens displacement detection circuit 47 RR lens displacement detection circuit 48 Image shake detection circuit 49 Image shake correction control circuit 51, 52 Sensor 53, 54 Displacement detection circuit 55 Image shake detection circuit 56 Variable apex angle prism Control circuit 58 Image shake / shake correction control circuit 60 Variable apex angle prism control circuit 62 Shake / image shake correction circuit 63 View angle change component / magnification change component detection circuit 64 Shake / image shake composite component detection circuit 65 Image shake detection circuit 67 Variable apex prism control circuit

Claims (18)

[Claims] 1. An imaging apparatus having a photographing optical system, a part of which is a movable optical system that can move in the optical axis direction, wherein a photographed image is obtained when the moving optical system starts moving, when moving, or when moving ends. An image pickup apparatus comprising image shake correcting means for correcting displacement or movement in a direction perpendicular to the optical axis. 2. The image pickup apparatus according to claim 1, wherein an operation timing detecting means for detecting a timing for operating the image shake correcting means, and detection information from the operation timing detecting means,
An image pickup apparatus comprising: a control unit that controls the image shake correction unit. 3. An image pickup apparatus having an image pickup optical system, a part of which is a movable optical system that can move in the optical axis direction, and a shake correction means for correcting shake of a picked-up image due to vibration of the image pickup apparatus or camera shake. An image shake correction unit that corrects a shift or movement of a captured image in a vertical direction with respect to the optical axis; an operation timing detection unit that detects a timing for operating the image shake correction unit; Depending on the detection information from the timing detection means,
An image pickup apparatus comprising: a control unit that controls the image shake correction unit. 4. The image pickup apparatus according to claim 3, wherein the image shake correction means is constituted by the camera shake correction means. 5. The image pickup apparatus according to claim 2, wherein the image in the image shake correcting means is detected according to position detecting means for detecting the position of the moving optical system and detection information given from the position detecting means. An image pickup apparatus comprising: a control unit that controls a shake correction amount. 6. The image pickup device according to claim 2, further comprising a position detection unit that detects the position of the moving optical system, and the operation timing detection unit is configured by the position detection unit. apparatus. 7. The image pickup apparatus according to claim 2, further comprising an operating unit configured to start the movement of the moving optical system according to an operating state of the image pickup apparatus, wherein the operation timing detecting unit is operated by the operating unit. An imaging device having the configuration. 8. An imaging device having a photographing optical system, a part of which is a movable optical system that can move in the optical axis direction, wherein a photographed image is obtained when the moving optical system starts moving, moves, or ends moving. Image shake detecting means for detecting a shift or movement in the direction perpendicular to the optical axis, and displacement or movement of the photographed image is corrected based on detection information provided from the image shake detecting means. An image pickup apparatus comprising: an image shake correction unit. 9. The image pickup apparatus according to claim 8, further comprising a shake correction unit that corrects a shake of a captured image due to a shake or a shake of the image pickup apparatus. 10. The image pickup apparatus according to claim 9, wherein the image shake correction means is constituted by the camera shake correction means. 11. An image pickup apparatus having an image pickup optical system, a part of which is a moving optical system that can move in the optical axis direction, and a camera shake detection unit for detecting vibration and camera shake of the image pickup apparatus, and the image pickup apparatus of the image pickup apparatus. A camera shake correction means for correcting the shake of a photographed image due to vibration or camera shake, and the photographed image being displaced or moved in the direction perpendicular to the optical axis when the moving optical system starts moving, moves, or ends. An image pickup apparatus comprising: an image shake detecting means for detecting the movement of the captured image; and an image shake correcting means for correcting the displacement or movement of the captured image. 12. The image pickup apparatus according to claim 11, wherein the comparison information is obtained by comparing the detection information provided by the camera shake detection means with the detection information provided by the image shake detection means, and calculating a difference therebetween. An image pickup apparatus, comprising: a control unit that controls the image shake correction unit according to difference information given from the unit. 13. The image pickup apparatus according to claim 11, wherein the camera shake detection means is responsive to operation timing detection means for detecting a timing at which the image shake correction means is activated, and detection information provided from the operation timing detection means. Comparing means for calculating the difference between the detection information given by the image shake detecting means and the detection information given by the image shake detecting means, and the camera shake correcting means and the image shake according to the difference information given by the comparing means. An image pickup apparatus comprising: a control unit that controls a correction unit. 14. The image pickup apparatus according to claim 11 or 13, wherein the image shake correction means is constituted by the camera shake correction means. 15. The image pickup apparatus according to claim 12, further comprising a control unit that controls the image blur correction unit to perform the image blur correction without performing the image blur correction by the image blur correction unit. A characteristic imaging device. 16. The image pickup apparatus according to claim 13, further comprising a position detection unit that detects the position of the moving optical system, and the operation timing detection unit is configured by the position detection unit. 17. The image pickup apparatus according to claim 13, further comprising an operating unit configured to start the movement of the moving optical system according to an operating state thereof, and the operation timing detecting unit is configured by the operating unit. An imaging device characterized by the above. 18. The image pickup apparatus according to claim 11, wherein the image stabilization correction unit selects one of a state in which the image stabilization is performed by the image stabilization unit and a state in which the image stabilization is not performed, The control means for controlling the camera shake detection means to operate only when the state for performing the camera shake correction by the camera shake correction selection means is not selected, or when the movement of the moving optical system is started or moved. A characteristic imaging device.