JPH0980543A - Image stabilizer - Google Patents

Abstract

(57) Abstract: In a shake correction device having a lock function, when the shake correction control is performed immediately after unlocking, the shake correction mechanism is impacted. Further, the control for avoiding the impact deteriorates the responsiveness of the shake correction device. In an image pickup apparatus having a shake correction device and a lock device for the shake correction device, a detection result information of a locked state is transmitted from a lens device to a body device and a first communication unit provided in the lens device and a detection result information of the locked state. And a second communication unit provided in the body device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blur correction device having a blur correction function.

[0002]

2. Description of the Related Art In a photographing apparatus represented by a camera, an AF
Devices (focusing devices) have become commonplace. In recent years, it has been proposed to add a VR device (shake correction device) that corrects image shake caused by camera shake or the like.

The shake correction device detects an angle variation of the optical axis due to hand shake and the like, and corrects the image shake in a photographed image based on the detection result. For example, Japanese Patent Laid-Open No.
-66535 discloses an example applied to a single-lens optical system, and JP-A-2-183217 discloses an example of performing blur correction by moving a part of a photographing optical system of an internal focusing type telephoto lens. Each has been proposed.

Further, a shake correction device with a lock mechanism for non-operation is disclosed in JP-A-4-34525 (camera system with image blur prevention function) and JP-A-4-11083.
Japanese Patent Laid-Open No. 5 (camera with image blur correction function)
-67274 (camera with image blur correction function) and the like.

[0005]

However, in the conventional photographing apparatus having both the shake correction function and the lock function, in which the body device transmits the unlocking control command to the lens device, the body device is There is an unavoidable delay between the time when the lock release command is sent to the lens device and the time when the actual lock is released.

Therefore, in the case where the body device performs the shake correction control immediately after unlocking, the shake correcting control may be started before the completion of unlocking, and when the unlocking is completed, the shake correcting device is activated. There is a risk that a large acceleration will act and give a shock.

In order to avoid such an impact on the shake correction device, after the body device transmits a lock release command to the lens device, a shake correction control command is issued to the lens device after a long time has elapsed. Just send it. But,
If this is done, the responsiveness at the time of activation of the image stabilization device will deteriorate.

Further, in the shake correction device having the lock state detection device, although the actual lock state can be detected, there is almost no difference between the individual cameras, and the delay time from the unlocking execution to the unlocking completion is small. Is constant, the control effect of executing the shake correction control command after a long time has elapsed after the unlock command is transmitted is low. Therefore, in order to improve the responsiveness of the shake correction device, it is only possible to mount the lock state detection switch in the vicinity of the lock mechanism, which leads to an increase in cost.

[0009]

The present invention has been made based on the following findings to solve the above-mentioned problems.

A signal indicating the locked state of the blur correction optical system is transmitted from the lens device to the body device. The signal indicating the locked state of the blur correction optical system is transmitted after waiting for a state signal request from the body device to the lens device.

The shake correction start signal is transmitted after the reply of unlocking. The centering signal is transmitted after the reply of unlocking. A lock command execution end signal is transmitted to the body device.
This eliminates the need for the lock state detection switch.

The lock instruction execution end signal has a timing delay of a predetermined time. The timing delay time is the delay time required for lock execution.

According to a first aspect of the present invention, there is provided a photographing optical system of a photographing device, a blur detecting unit for detecting blurring of an optical axis in the photographing optical system, and a part of the photographing optical system. A blur correction optical system for correcting the image blur, a blur correction drive unit for moving a part or all of the blur correction optical system relative to a shooting screen, and an output based on the blur detection unit. A shake correction control unit that generates a shake correction signal of the shake correction drive unit; a lock unit that locks the shake correction optical system at a predetermined position; and a body device or a lens device that constitutes the photographing device, A lock state detection unit that detects whether or not the shake correction optical system is locked at the predetermined position, and a lock state detection result information provided by the lock state detection unit that is provided to the lens device. First to be transmitted to the body apparatus from
A communication unit and a second communication unit which is provided in the body device and receives the lock state detection result information are provided.

According to a second aspect of the present invention, in the image blur correction device according to the first aspect, the second communication unit may send the lock state detection result information alone or together with other information from the first communication unit. A lock state detection result information transmission command instructing to transmit to the second communication unit is transmitted to the first communication unit.

[0015] The invention of claim 3 is claim 1 or claim 2.
In the blur correction device described in paragraph 1, the second communication unit transmits, to the first communication unit, a blur correction drive start command for instructing the blur correction drive unit to start blur correction drive. And

According to a fourth aspect of the present invention, there is provided the first to third aspects.
In the shake correction device described in any one of the above items, the second communication unit may transmit a lock start command for instructing the lock unit to start a lock operation to the first communication unit. It is a feature.

The invention of claim 5 is from claim 1 to claim 4.
In the blur correction device described in any one of the above items, the second communication unit transmits an unlock start command for instructing the lock unit to start an unlock operation to the first communication unit. It is characterized by

The invention according to claim 6 is the invention according to claims 1 to 5.
In the shake correction device described in any one of the above items, the second communication unit may lock the lock unit based on the lock state detection result information when a transmission request of the shake start command is made. When it is, the transmission request of the shake start command is discarded, or the transmission request of the shake start command is held until it is detected that the lock unit is in the unlocked state.

The invention of claim 7 is from claim 1 to claim 6.
In the shake correction device described in any one of the above items, the second communication unit issues a centering command to the shake correction drive unit to move the shake correction drive to an optical center position. It is characterized by transmitting to the communication unit.

The invention of claim 8 is from claim 1 to claim 7.
In the blur correction device described in any one of the above items, the second communication unit is in a locked state based on the lock state detection result information when a transmission request for the centering command is made. In some cases, the transmission request of the centering start command is discarded or the transmission request of the centering command is held until it is detected that the lock unit is in the unlocked state.

According to a ninth aspect of the present invention, a photographing optical system of a photographing device, a blur detecting unit for detecting blurring of an optical axis in the photographing optical system, and a part of the photographing optical system are arranged, and are generated by the blur. A blur correction optical system for correcting the image blur, a blur correction drive unit for moving a part or all of the blur correction optical system relative to a shooting screen, and an output based on the blur detection unit. A shake correction control unit that generates a shake correction signal of the shake correction drive unit, a lock unit that locks the shake correction optical system at a predetermined position, a lock control unit that controls the lock unit, and the photographing apparatus are configured. When the lock control unit is provided to the lens device, the lock command execution end information indicating whether or not the lock control unit has finished outputting the lock signal or the unlock signal to the lock unit is combined with the lens device from the lens device. A first communication unit for transmitting to the body unit being provided in said body unit, characterized in that it comprises a second communication unit that receives the lock instruction execution end information.

According to a tenth aspect of the present invention, in the shake correction device according to the ninth aspect, the second communication unit may send the lock command execution end information alone or together with other information from the first communication unit. A lock command execution end information transmission command for instructing transmission to the second communication unit is transmitted to the first communication unit.

According to an eleventh aspect of the present invention, in the blur correction device according to the ninth or tenth aspect, the second communication section instructs the blur correction drive section to start the blur correction drive. The correction drive start command is transmitted to the first communication unit.

According to a twelfth aspect of the present invention, in the blur correction device according to any one of the ninth to eleventh aspects, the second communication section starts a locking operation in the lock section. A lock start command to instruct is transmitted to the first communication unit.

According to a thirteenth aspect of the present invention, in the blur correction device according to any one of the ninth to twelfth aspects, the second communication section starts an unlock operation of the lock section. A lock release start command for instructing is transmitted to the first communication unit.

According to a fourteenth aspect of the present invention, in the blur correction device according to any one of the ninth to thirteenth aspects, when the second communication unit requests the transmission of the blur start command. In the above, when it is determined from the lock command execution end information that the lock unit is in the locked state, the transmission request of the shake start command is discarded or it is determined that the lock unit is in the unlocked state. The transmission request of the shake start command is held during the period.

According to a fifteenth aspect of the present invention, in the blur correction device according to any one of the ninth to fourteenth aspects, the second communication unit causes the blur correction drive unit to perform the blur correction drive. A centering command for instructing to move to the optical center position is transmitted to the first communication unit.

According to a sixteenth aspect of the present invention, in the image blur correction device according to any one of the ninth to fifteenth aspects, the second communication unit receives a transmission request for the centering command. During the time when it is determined that the lock unit is in the locked state based on the lock command execution end information, the transmission request of the centering start command is discarded, or until it is determined that the lock unit is in the locked state. The transmission request of the centering command is held.

According to a seventeenth aspect of the present invention, in the shake correction device according to any one of the ninth to sixteenth aspects, the lock command execution end information indicating whether or not the lock release signal is output is set for a predetermined time. The lens device transmits the signal to the body device with a delay.

According to an eighteenth aspect of the present invention, in the shake correction device according to the seventeenth aspect, the lock control unit starts lock control and then the lock unit finishes the lock release operation or the lock operation for the certain period of time. It is characterized by the time required until the end.

[0031]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) Hereinafter, the present invention will be described in more detail by way of an embodiment of the present invention with reference to the drawings.

FIG. 1 is a block diagram showing a signal system of an image pickup apparatus to which the first embodiment of the image stabilization apparatus according to the present invention is applied, and FIG. 3 is an image pickup to which the image stabilization apparatus of the first embodiment is applied. It is a schematic diagram showing a configuration including a photographing optical system of the apparatus.

As shown in FIGS. 1 and 3, this shake correction device is incorporated in a photographing device (see FIG. 3) which is composed of a lens device 1 and a body device 2, and will be described later. A part of the photographing optical system is moved based on the detected value of the blur amount of the optical axis in the photographing optical system.

The lens device 1 is provided with a shake correction control microcomputer 3, an ultrasonic motor microcomputer 16, a communication microcomputer 24, etc., while the body device 2 is provided with a body microcomputer 25, etc. It is provided.

Microcomputer 3 for blur correction control
Is a microcomputer 25 for the body of the body device 2.
Of the X-axis drive motor 7, the X-axis motor driver 8, the Y-axis drive motor 11, and the Y-axis drive motor 11 based on the optical system position information from the X encoder 5, the Y encoder 9, the distance encoder 15, the zoom encoder 22, and the like. The drive of the shake correction drive unit including the shaft motor driver 12 and the like is controlled.

Further, the shake correction control microcomputer 3 serves as a lock state detecting portion of the fixed magnet 29, which will be described later, and determines whether the fixed magnet 29 is locked or not depending on the energization state of the fixed magnet 29.

Further, the shake correction control microcomputer 3 also serves as a lock control section for controlling the fixed magnet 29. When the shake correction control microcomputer 3 forming the lock state detection unit is provided in the body device 2, the lock state detection result information is used as the first communication unit once provided in the lens device 1 for communication. The data may be sent to the microphone / computer 24, and the communication microphone / computer 24 may be sent to the shake correction control microcomputer 3. The lens contact 4 is the lens device 1
It is a group of electrical contacts used for exchanging signals between the body device 2 and the body device 2, and is connected to the communication microcomputer 24.

The X encoder 5 is for detecting the amount of movement of the optical system in the X-axis direction, and its output is connected to the X encoder IC 6. The X encoder IC 6 is for converting the amount of movement of the optical system in the X axis direction into an electric signal, and the signal is sent to the shake correction control microcomputer 3. Further, the X-axis drive motor 7 is a drive motor that moves and drives the X-axis shake correction optical system, and the X-axis motor driver 8 is a circuit that drives the X-axis drive motor 7.

Similarly, the Y encoder 9 is for detecting the amount of movement of the optical system in the Y-axis direction, and its output is connected to the Y encoder IC 10. The Y encoder IC 10 is for converting the amount of movement of the optical system in the Y-axis direction into an electric signal, and the signal is sent to the shake correction control microcomputer 3. Further, the Y-axis drive motor 11 is a drive motor for moving and driving the Y-axis shake correction optical system, and the Y-axis motor driver 12 is a circuit for driving the Y-axis drive motor 11.

The blur correction head amplifier 13 is a blur detection unit for detecting the blur amount, and is a circuit for detecting the blur amount. That is, the image blur information is converted into an electric signal, and the signal is sent to the blur correction control microcomputer 3. As the shake correction head amplifier 13, for example, an angular velocity sensor or the like can be used.

The VR switch 14 is a switch for switching on / off of the shake correction drive. The distance encoder 15 is an encoder that detects a focus position and converts it into an electric signal, and the output thereof is similarly the blur correction control microcomputer 3, the ultrasonic motor microcomputer 16 and the communication microcomputer 2.
4 is connected.

Microcomputer 16 for ultrasonic motor
Is for controlling the ultrasonic motor 19 that drives the focusing optical system drive unit. The USM encoder 17 is
It is an encoder that detects the amount of movement of the ultrasonic motor 19, and its output is connected to the USM encoder IC 18. The USM encoder IC 18 is a circuit that converts the movement amount of the ultrasonic motor 19 into an electric signal, and the signal is
It is sent to the microcomputer 16 for the ultrasonic motor.

The ultrasonic motor 19 is a motor for driving the focusing optical system. The ultrasonic motor drive circuit 20 is a circuit which has a drive frequency specific to the ultrasonic motor 19 and generates two drive signals having a 90 ° phase difference from each other.
The ultrasonic motor IC 21 is a circuit that interfaces between the ultrasonic motor microcomputer 16 and the ultrasonic motor drive circuit 20.

The zoom encoder 22 is an encoder for detecting the lens focal length position and converting it into an electric signal.
The output is the image stabilization control microcomputer 3,
It is connected to the ultrasonic motor microcomputer 16 and the communication microcomputer 24.

The DC-DC converter 23 is a circuit that supplies a stable DC voltage against the voltage fluctuation of the power supply battery, and is controlled by a signal from the communication microcomputer 24.

The communication microcomputer 24 performs communication between the lens apparatus 1 and the body apparatus 2, and the other microcomputers in the lens apparatus 1 (the shake correction control microcomputer 3 and the ultrasonic motor microcomputer 16). Etc.) is a microcomputer that transmits a command to. Further, in the present embodiment, the communication microcomputer 24 serves as a first communication unit that transmits the lock state detection result information output from the shake correction control microphone / computer 3 that is the lock state detection unit to the body device 2. ing.

The first communication section sends the lock command execution end information indicating whether or not the shake correction control microphone / computer 3 as the lock control section outputs the lock signal or the unlock signal to the fixed magnet 29, to the body device. Send to 2.

The body microcomputer 25 instructs the blur correction display section 27 to display a warning based on the maximum blur correction time information transmitted from the lens device 1, the exposure setting information, the subject brightness information, and the like.

Further, in this embodiment, the body microcomputer 25 is the communication microcomputer 24.
The second receiving the lock state detection result information output from the second
It is a communication unit. The second communication unit also receives the lock command execution end information.

The release switch 28 is provided in the body device 2, and when the photographer transmits the start of exposure control to the body device 2 and is designated by the blur correction control start switch determination processing, the blur correction control signal is issued. Determine the transmission timing of. It is composed of a half-press switch SW1 which starts a shooting preparation operation by half-pressing the release button by the photographer, and a full-press switch SW2 which instructs start of exposure control by fully pressing the release button.

A fixed magnet 29, which is a lock portion for locking the shake correction optical system at a predetermined position (center position), is provided in the lens device 1, and is a mechanical component (shown in the figure) provided for fixing the shake correction mechanism. When the electromagnetic magnet is energized, the shake correction mechanism is in a movable state, and when the electromagnetic magnet is not energized, the shake correction mechanism is in a fixed state. In other words, the fixed magnet 29 is a lock mechanism having an energization type unlocking function that releases the fixation of the shake correction mechanism to a predetermined stop position (center position) when energized.

The image pickup apparatus to which the image stabilization apparatus of this embodiment is applied is constructed as described in detail above. FIG.
FIG. 6 is a flowchart illustrating an operation sequence of the image capturing apparatus according to this embodiment.

Step (hereinafter abbreviated as "S") 2
At 00, the communication microcomputer 24 prepares for communication. At the same time, the shake correction control microcomputer 3 prepares for communication in S201, and the ultrasonic motor microcomputer 16 prepares for communication in S202.

In S 203, the communication microcomputer 24 communicates with the body device 2 via the lens contact 4. In step S204, the focus control instruction from the body device 2 is transmitted to the ultrasonic motor microcomputer 16.

In S205, the ultrasonic motor microcomputer 16 performs focusing control based on the information of the zoom encoder 22, the distance encoder 15, and the like. In step S206, the shake correction control instruction or the lock-related control instruction (lock control instruction or lock release control instruction) from the body device 2 is transmitted to the shake correction control microcomputer 3.

In step S207, the shake correction control microcomputer 3 performs a shake correction calculation. In step S208, the shake correction control microcomputer 3 issues a shake correction control or lock-related control instruction (lock control instruction or lock release control instruction).

FIG. 4 and FIG. 5 both show the operation of the blur correction control and the lock-related control of the body device 2 according to the present embodiment until the blur correction control command after the film exposure control is finished is transmitted to the lens device 2. It is a flow chart explaining the order.

In S400 of FIG. 4, the body device 2 activates the power supply circuit in the body device 2 by turning on the body power supply switch, and proceeds to S401. In S401, the body device 2 communicates with the lens device 1 via the lens contact 4, detects lens information, and proceeds to S402.

In S402, the body device 2 performs S40.
Body device 2 based on the lens information obtained in 1.
It is determined whether or not the lens device 1 attached to the lens is a shake correction function compatible lens. If it is a lens compatible with the blur correction function, the process proceeds to step S403.

In S403, the body device 2 supplies power to the lens device 1, and the process proceeds to S404. In S404, the body device 2 determines whether or not the shake correction control mode (VR switch) is on. When the VR switch is on (when in shake correction control execution mode)
Goes to S405, and if the VR switch is not on (when in the shake correction control non-execution mode), the process proceeds to S411.

Here, the contents of the control operation in the shake correction control mode (VR switch) are summarized in the table as shown in Table 1.

[0062]

[Table 1]

In S405, it is determined whether or not the VR operation switch is on. If the VR operation switch is on, the operation proceeds to S406, and if the VR operation switch is not on, the operation proceeds to S411.

Here, the contents of the control operation by the VR operation switch are summarized in the table as shown in Table 2.

[0065]

[Table 2]

In S406, the body device 2 executes S40.
Lens device 2 based on the lens information obtained in 1.
It is determined whether or not the fixed magnet 29, which is the lock portion of the shake correction optical system built into the camera, is in the unlocked state.
If the fixed magnet 29 is in the unlocked state, S
If not in the unlocked state, the process proceeds to step S408.

In step S407, the body device 2 sends a shake correction control command to the lens device 1. In step S <b> 408, the body device 2 determines whether the unlock command has been transmitted to the lens device 1. If it has been transmitted, the process proceeds to S410, and if it has not been transmitted, the process proceeds to S409.

In step S409, the body device 2 is the lens device 1
Send unlock request to. In S410, the body device 2 transmits a lock state information transmission command to the lens device 2.

In S411, the body device 2 determines whether or not the release switch, which is the exposure start command by the photographer, is on. If the release switch is on, proceed to A (S500). If not, proceed to S411.
Is repeatedly executed.

In S500 of FIG. 5, the body device 2 determines the body device 2 based on the lens information obtained in S401.
It is determined whether or not the lens device 2 attached to the lens is a blur correction function compatible lens. If the lens is a shake correction function compatible lens, the process proceeds to S501, and if not, the process proceeds to S507.

In S501, the body device 2 determines whether or not the shake correction control mode (VR switch) is on. If the VR switch is on (shake correction control execution mode), the process proceeds to S502, and if the VR switch is not on (shake correction control non-execution mode), the process proceeds to S507.

In S502, the body device 2 executes S40.
Based on the lens information obtained in step 1, it is determined whether the fixed magnet 29 of the lens device 2 is in the locked state.
If it is in the unlocked state, the process proceeds to S503, and if it is not in the unlocked state, the process proceeds to S504.

In S 503, the body device 2 sends a blur correction control command to the lens device 1. In step S <b> 504, the body device 2 determines whether the unlock command has been returned to the lens device 1. If the reply has been sent, the process proceeds to S506, and if not, the process proceeds to S505.

In step S505, the body device 2 is the lens device 1
Reply to the unlock command. In S506, the body device 2 sends a lock state information reply command to the lens device 1.

In step S507, the body device 2 performs film exposure control. In S508, it is determined whether or not the VR switch is on. If the VR switch is on, the process proceeds to S509, and if not, the process returns. In S509, the body device 2 determines whether or not the VR operation switch is on. When the VR operation switch is on, the process proceeds to S510, and when the VR operation switch is not on, the process returns.

As described above, according to the image pickup apparatus to which the image stabilization apparatus according to the present embodiment is applied, there is a time lag between the body apparatus 2 transmitting the unlock command to the lens apparatus 1 and the completion of the locked state. Even when the length of this delay time varies depending on the working condition of the microphone computer of the lens apparatus 1, the body apparatus 2 receives the lock state information from the lens apparatus 1 and determines the lock state. The shake correction optical system can be driven. Therefore, even when the body device 2 performs the shake correction control immediately after the lock is released, the shake correction control is canceled before the lock is released, and the shake correction mechanism is not impacted.

Further, according to the present embodiment, the body device 2
Is to receive the lock state information from the lens apparatus 1 and determine the lock state to avoid an impact due to abrupt activation, so that the body apparatus 2 is required after transmitting an unlock command to the lens apparatus 1. The responsiveness is not deteriorated by the method of transmitting the shake correction control command to the lens apparatus 1 after the above time has elapsed.

According to this embodiment, the lock state information is transmitted from the lens device 1 to the body device 2 only when the body device 2 commands the lens device 1 to transmit the lock state information. . For this reason, unnecessary lock state information is not returned from the lens device 1 to the body device 2 when a lens capable of shake correction control is attached to a body device that is not capable of shake correction control.
It is also solved that the microphone computer of the body device 2 is devoted to unnecessary communication work and delays other necessary processing.

Further, according to the present embodiment, the lock state information at the time of unlocking is updated after the time required for unlocking has elapsed since the unlocking control was executed by the lock controller. It is possible to prevent damage to the shake correction mechanism due to the execution of shake correction control before unlocking that occurs when delay is not taken into consideration, and the lock state detection switch is not necessary, which enables cost reduction.

(Modifications) The blur correction device according to the present invention is not limited to the above-described embodiments, and various modifications and changes can be made, which are also included in the scope of the present invention. For example, in the present embodiment, the lens device of the single-lens reflex camera in which the lens device and the body device are detachable is described as an example, but the same can be applied to the lens portion of the compact camera.

[Brief description of drawings]

FIG. 1 is a block diagram showing a signal system of an image pickup apparatus to which a first embodiment of a blur correction apparatus according to the present invention is applied.

FIG. 2 is a flowchart illustrating an operation sequence of a photographing device to which the shake correction device of the first embodiment is applied.

FIG. 3 is a schematic diagram showing a configuration including a photographing optical system of a photographing device to which the blur correction device of the first embodiment is applied.

FIG. 4 is a flowchart illustrating an operation sequence of a blur correction control and a lock-related control of the body apparatus according to the present invention until a blur correction control command is transmitted to the lens apparatus after the film exposure control is finished.

FIG. 5 is a flowchart illustrating an operation sequence of a blur correction control and a lock-related control of the body device of the present invention until a blur correction control command is transmitted to the lens device after completion of film exposure control.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 lens device 2 body device 3 blur correction control microcomputer 4 lens contact 5 X encoder 6 X encoder IC 7 X axis drive motor 8 X axis motor driver 9 Y encoder 10 Y encoder IC 11 Y axis drive motor 12 Y motor driver 13 Shake correction head amplifier (angular velocity sensor) 14 VR switch 15 Distance encoder 16 Ultrasonic motor microcomputer 17 USM encoder 18 USM encoder IC 19 Ultrasonic motor 20 Ultrasonic motor drive circuit 21 Ultrasonic motor IC 22 Zoom encoder 23 DC- DC converter 24 Microcomputer for communication 25 Microcomputer for body 26 Subject finder 27 Blurring correction display section 28 Release switch 29 Fixed magnet (blurring correction Locking mechanism the device has energized type fixed release function for releasing the fixation to a given state)

Claims (18)

[Claims] 1. A photographing optical system of a photographing apparatus, a blur detecting unit for detecting blurring of an optical axis in the photographing optical system, and a part of the photographing optical system which is arranged to correct an image blur caused by the blur. A shake correction optical system, a shake correction drive unit for moving a part or all of the shake correction optical system relative to a shooting screen, and the shake correction drive based on the output of the shake detection unit. A shake correction control unit that generates a shake correction signal for the camera unit, a lock unit that locks the shake correction optical system at a predetermined position, and a body device or a lens device that configures the photographing apparatus. A lock state detection unit that detects whether or not the system is locked at the predetermined position, and a lock state detection result information provided by the lock state detection unit that is provided by the lens state unit, and the lock state detection result information from the lens device is transmitted from the lens unit to the button. A first communication unit for transmitting to the D device,
A blur correction device, comprising: a second communication unit which is provided in the body device and receives the lock state detection result information. 2. The blur correction device according to claim 1, wherein the second communication unit uses the lock state detection result information alone or together with other information from the first communication unit to the second communication unit.
A shake correction device, characterized in that a lock state detection result information transmission command for instructing transmission to a communication unit is transmitted to the first communication unit. 3. The blur correction device according to claim 1, wherein the second communication unit issues a blur correction drive start command for instructing the blur correction drive unit to start the blur correction drive. An image stabilization device, which transmits to the first communication unit. 4. Any one of claims 1 to 3
The blur correction device according to item 1, wherein the second communication unit transmits a lock start command for instructing the lock unit to start a locking operation to the first communication unit. . 5. Any one of claims 1 to 4
In the shake correction device according to the item 1, the second communication unit may issue a lock release start command for instructing the lock unit to start an unlock operation.
An image stabilization device that transmits to a communication unit. 6. Any one of claims 1 to 5
In the shake correction device according to the paragraph (2), the second communication unit, when there is a request to transmit the shake start command, when the lock unit is in a locked state based on the lock state detection result information, An image stabilization apparatus, which holds the transmission request for the shake start command until the transmission request for the start command is discarded or until it is detected that the lock unit is in the unlocked state. 7. Any one of claims 1 to 6
The blur correction device according to the item 1, wherein the second communication unit transmits, to the first communication unit, a centering command that instructs the blur correction drive unit to move the blur correction drive to an optical center position. A shake correction device characterized by. 8. Any one of claims 1 to 7
In the blur correction device according to the item 1, the second communication unit, when there is a request to transmit the centering command, when the lock unit is in a locked state based on the lock state detection result information, the centering start command. The image stabilization apparatus holds the transmission request for the centering command until the transmission request is discarded or the lock unit is detected to be in the unlocked state. 9. An image pickup optical system of an image pickup apparatus, a shake detection unit for detecting a shake of an optical axis in the image pickup optical system, and a part of the image pickup optical system, which is provided to correct an image shake caused by the shake. A shake correction optical system, a shake correction drive unit for moving a part or all of the shake correction optical system relative to a shooting screen, and the shake correction drive based on the output of the shake detection unit. Provided in a lens device that constitutes the image capturing apparatus, a shake correction control unit that generates a shake correction signal of a camera unit, a lock unit that locks the shake correction optical system at a predetermined position, a lock control unit that controls the lock unit, A body device in which lock command execution end information indicating whether the lock control unit has finished outputting a lock signal or an unlock signal to the lock unit is combined with the lens device from the lens device. An image stabilization apparatus, comprising: a first communication unit that transmits the lock command execution end information to the body device; and a second communication unit that is provided in the body device and receives the lock command execution end information. 10. The shake correction device according to claim 9, wherein the second communication unit uses the lock command execution end information alone or together with other information from the first communication unit to the second communication unit.
A blur correction device, characterized in that a lock command execution end information transmission command for instructing transmission to a communication unit is transmitted to the first communication unit. 11. The blur correction device according to claim 9, wherein the second communication unit issues a blur correction drive start command for instructing the blur correction drive unit to start blur correction drive. An image stabilization device, which transmits to the first communication unit. 12. The blur correction device according to claim 9, wherein the second communication unit issues a lock start command for instructing the lock unit to start a lock operation. And a blur correction device, which transmits to the first communication unit. 13. The shake correction device according to claim 9, wherein the second communication unit commands the lock unit to start a lock release operation. The command, the first
An image stabilization device that transmits to a communication unit. 14. The blur correction device according to claim 9, wherein the second communication unit executes the lock command when a transmission request for the blur start command is made. Depending on the termination information,
When it is determined that the lock portion is in the locked state,
An image stabilization apparatus, which holds the transmission request for the shake start command until the transmission request for the shake start command is discarded or until it is determined that the lock unit is in an unlocked state. 15. The blur correction device according to claim 9, wherein the second communication unit causes the blur correction drive unit to move the blur correction drive to an optical center position. A blur correction device, which transmits a centering command for instructing that to the first communication unit. 16. The shake correction device according to claim 9, wherein the second communication unit terminates execution of the lock command when a transmission request for the centering command is made. When it is determined that the lock unit is in the locked state based on the information, the transmission request of the centering start command is discarded, or the transmission request of the centering command is issued until it is determined that the lock unit is in the locked state. An image stabilization device characterized by holding. 17. The blur correction device according to claim 9, wherein the lock command execution end information indicating whether or not a lock release signal is output is delayed by a predetermined time, and the lens is released. An image stabilization device that transmits from a device to the body device. 18. The shake correction device according to claim 17, wherein the certain period of time is a time required from the start of the lock control by the lock control unit to the end of the lock release operation or the end of the lock operation of the lock unit. A blur correction device characterized by being present.