JP3386189B2 - Camera system having camera shake detection device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a camera shake detecting device.
Related to the camera, especially when the mirror or shutter is activated.
Camera with a camera shake detection device that avoids
Related. 2. Description of the Related Art Conventionally, when a mirror or shutter is operated,
Hand shake that accurately detects camera shake by avoiding the impact of the generated shock
Techniques relating to the detection device have been developed. For example, JP
In Japanese Unexamined Patent Publication No. Hei 4-237268, a conversion lens
When the camera is attached, the magnification
Rhythm swing angle, etc. must be adjusted so that image blur correction can be performed accurately.
An adapted technique is disclosed. [0003] Japanese Patent Laid-Open Publication No. 4-328534 discloses
Determines hand-held shooting / tripod shooting,
Sensor erroneous signal output due to operation shock of mirror, shutter, etc.
To change the cutoff frequency of the low-pass filter.
A technique for removing the above is disclosed. [0004] However, the above-mentioned features
In the technology disclosed in Japanese Unexamined Patent Publication No. 4-237268,
If accessories such as a converter are installed,
Error signal output from the sensor due to operation
Problems such as changing bells and frequencies
However, no technology has been developed to solve this problem.
Not shown. Further, Japanese Patent Application Laid-Open No. 4-328534 discloses
Just like the technology disclosed in the report,
Sensor miscommunication with low-pass filter based on leg shooting decision
By simply removing the signal, the combination of the camera body and lens
Sensor output affected by camera operation
You can't cope well with power. [0006] The present invention has been made in view of the above problems.
The purpose is to set the camera body and lens
When mirror or shutter operation is performed even when registration is changed
Avoids the effects of shocks that occur on the
To do. [0007] In order to achieve the above object,
And a camera system having a camera shake detection device according to the present invention.
The camera is the camera body and the replacement
Camera system with camera shake detection device including lens
Camera shake detection to detect camera shake
Means to perform a release operation of the camera body in a stationary state.
The output value of the camera shake state detecting means when the
Before the impact after the mechanism inside the
Output value is almost the same as when the release operation is not performed in the state
Timing information about the timing of timing
To the combination of the camera body and the interchangeable lens
Storage means for storing correspondingly, and storage in said storage means
Based on the timing information
Sampling means for sampling the output of the detecting means
Based on the sampling result of the sampling means
Camera shake correction amount calculator that calculates the camera shake correction amount
And a step. [0010] That is, a camera having a camera shake detection device according to the present invention.
Camera system is attached to the camera body and this camera body
Having a camera shake detection device including an interchangeable lens to be used
In the system, the camera shake state detecting means is used to detect camera shake.
The state of the camera is detected, and the memory
The camera shake state detection hand when the body is released
The output value of the stage converges after the mechanical operation inside the camera
Before the release, do not perform the release operation in the stationary state
The output timing is almost the same as the
Information on the camera and the replacement lens
Memory in accordance with the combination with
Timing information stored in the storage means
The output of the camera shake state detecting means is sampled based on
And the camera shake correction amount calculating means is connected to the sampling means.
Camera shake correction amount based on the sampling result of
Calculate. Embodiments of the present invention will be described below with reference to the accompanying drawings.
Will be explained. FIG. 1 shows a camera shake according to a first embodiment of the present invention.
FIG. 2 is a diagram illustrating a configuration of a camera having a detection device. In FIG. 1, the camera shake state is detected.
For example, an acceleration sensor or angular velocity sensor
The shake detection unit 1 outputs an output signal corresponding to the shake state.
Connected to the sampling unit 2 for sampling
I have. And it is taken in by this sampling unit 2
Based on the information from the camera shake detector 1
The camera shake amount, camera shake speed, and
First control for calculating the drive control amount of the illustrated shake correction unit
The unit 3 is connected to the sampling unit 2. this
Is a CPU or the like in the lens, for example. In addition,
The sampling unit 2 includes the sampling unit 2 and the first control unit.
Information on the sampling timing of the first control
Sampling information utilized by instructions from part 3
The information storage unit 4 is connected. And the first control unit
Reference numeral 3 denotes a communication unit 5 for communicating between the lens and the camera body.
Connected to the second controller 6. This is for example a turtle
A CPU in the camera body that controls the entire camera. In such a configuration, the camera shake detecting section 1
If the camera shake is detected by
The above-mentioned blurring state at a fixed sampling frequency by the unit 2
After the corresponding output signal is sampled,
The first control unit 3 calculates a shake amount, a shake speed, and the like.
It is. The first control unit 3 on the lens side communicates with the communication unit 5.
Communicates with the second control unit 6 on the camera body side via the
The type of the camera body being worn is determined. And unfair
The exposure start signal from the exposure start section shown to the second controller 6
Is output to the first control unit via the communication unit 5.
3 is transmitted. In response to this, the first control unit 3
Stored in the sampling information storage unit 4 for the
Sampling based on sampling information
To give instructions. Then, based on this instruction, sump
The ring unit 2 has a constant sampling frequency before the exposure start operation.
The output of the camera shake detection unit 1 is output at a timing different from the number.
Perform sampling. Therefore, after the exposure start signal is output,
The first control unit 3 performs a shake calculation based on the signal.
Become. Next, FIG. 2 further embodies the first embodiment.
Having a camera shake detection device according to the second embodiment
FIG. 3 is a diagram showing the configuration of FIG. In FIG. 2, on the lens side
Is the rotation axis center in the X-axis direction of the camera (film feeding direction)
A camera shake detection unit 1X for detecting a shake
Direction (the direction perpendicular to the film feeding direction and the direction of the photographing optical axis)
The camera shake detection unit 1Y that performs shake detection for
It is connected to the section 2. Then, the circuit shown in FIG.
The sampling information storage unit 4 further includes a camera shake detection unit 1X.
For the sampling information storage unit 4X and the camera shake detection unit 1Y
The sampling information storage unit 4Y is divided into
The pulling unit 2 and the first control unit 3 are connected to each other. Further
The first control unit 3 on the lens side includes a photographing lens driving unit 7 and
And a shake correcting section driving section 9. And shooting
The lens driving unit 7 drives the photographing lens 8 for focusing.
The motion compensation unit driving unit 9 drives the motion compensation unit 10
Connected to each other to operate. On the other hand, on the camera body side, the second control unit 6
Connected to the first control unit 3 on the lens side via the communication unit 5
I have. The second controller 6 performs a photometric operation.
Measuring unit 11, a distance measuring unit 12 for performing a distance measuring operation,
An exposure start unit 13 for instructing an exposure start of the camera;
Mirror driving unit 14 used for actually performing exposure, and
And a shutter drive unit 16 are connected. And Mira
The drive unit 14 has a shutter for driving the mirror 15.
The drive unit 16 is provided for driving the shutter 17.
It is connected. In such a configuration, on the lens side,
Determines the type of camera body attached at that time
The first control unit 3 communicates with the second control unit
Communicate with 6. Then, determine the type of camera body and
Which of the storage contents of the sampling information storage units 4X and 4Y
Decide whether to use the storage contents for each camera body. Then, on the camera body side, the exposure starts.
Before the exposure start instruction of the unit 13 (at the time of the first known release),
Photometric operation by the photometric unit 11 under the control of the second control unit 6
The distance measuring operation by the distance measuring unit 12 is performed. And measurement
Based on the result of distance measurement by the distance unit 12, focus adjustment is performed.
The lens drive amount is determined, and this information is transmitted via the communication unit 5
Sent to the first control unit 3 and photographed by the photographing lens drive unit 7
The lens 8 is driven. Then, by the exposure start unit 13
When an exposure start instruction signal is output to the second control unit 6
(At the time of a known second release), this information is transmitted via the communication unit 5.
Is transmitted to the first control unit 3. Further, on the lens side,
In addition, camera shake based on the sampling information storage units 4X and 4Y
Sampling of the output signals of the detectors 1X and 1Y is a sampler.
The first control unit based on the result.
At 3, the shake calculation is performed. On the camera body,
At the same time, the mirror driving unit 14 moves the mirror 15
Up operation and the shutter drive unit 16
The front curtain of the shutter 17 starts running, and the exposure operation is substantially started.
You. In the meantime, on the lens side,
The image stabilizing unit 10 is driven, and shake correction during exposure is performed.
It is. On the other hand, on the camera body side,
After the determined predetermined exposure time has elapsed, the shutter 17
The rear curtain is driven by the shutter drive unit 16, and the
Thereafter, the mirror 15 is moved down by the mirror driving unit 14.
After the film is wound up, a series of operations are completed.
You. Here, referring to FIG.
Sampling stored in the storage unit 4X, 4Y
Explain sampling based on timing information.
You. FIG. 3A shows the output of the camera shake detection unit 1X when the camera is stationary.
FIG. 3B shows a force waveform, and FIG.
FIG. 7 shows an output waveform of the camera shake detection unit 1X at the time of exposure.
You. FIG. 3E shows the operation of each part during camera exposure.
Is shown. FIG. 3 (c) shows a camera shake detection when the camera is stationary.
FIG. 3D shows an output waveform of the output section 1Y, and FIG.
Output of camera shake detection section 1Y during camera operation (exposure)
4 shows a force waveform. FIGS. 3A and 3C show the camera static.
Since the waveform at the time of stop, the amplitude of VX and VY is almost ± 0.
[V]. On the other hand, FIGS. 3B and 3D
Because the waveform is when the camera is operating,
Shock when the mirror is raised and the shutter curtain is running
Is transmitted to the camera shake detection units 1X and 1Y,
Despite the fact that there is basically no image blur in the stationary state
The camera shake detectors 1X and 1Y output signals as shown in the figure.
And outputs forces VX 'and VY'. As described above, the camera shake detection section 1X,
In order to finally perform blur correction based on the 1Y output signal,
Unnecessary signal output of camera shake detection units 1X and 1Y due to this impact
Can reduce the blurring correction rate, that is, how much the original camera shake
This is a problem because the ratio of completion is reduced. Also, dew
At the end of light, the impact when the rear curtain of the shutter is completed, and the mirror
The impact at the time of the down is transmitted to the camera shake detection units 1X and 1Y, and
As described above, the camera shake detection units 1X and 1Y output signal outputs as shown in the figure.
are doing. However, at the end of exposure, the exposure has already been completed
Therefore, basically, if this signal output is
Absent. FIG. 3 (b) and FIG. 3 (d)
This will be described in detail. First, in FIG.
The waveforms shown are TX1, TX2,.
The signal output level is zero
(± 0 [V]). This phenomenon is
Mera's mirror and shutter
Attenuates gradually due to signal output. Therefore, the output level
The time becomes smaller with time, the time between TX1, TX2 ...
The interval increases over time. This phenomenon is caused by one
It has been confirmed that the reproducibility is
I have. This is shown in FIG. 3D, that is, the Y axis
Is also independent of the X axis (signal output amplitude level
, Cycle, and timing of the zero-cross point).
Therefore, the zero cross points TX1, TX2,.
In TY2 ..., the signal outputs of the camera shake detection units 1X and 1Y are supported.
If sampling is performed by the sampling unit 2,
When the mirror of the camera is up, and when the shutter
Mitigates the effects of motion shock on camera shake detection units 1X and 1Y
It becomes possible to do. Therefore, sampling of this zero cross point
-The timing information is stored in the sampling information storage units 4X and 4Y.
To be stored. The exposure start signal of the exposure start unit 5
After the signal is input to the control / operation unit 3, this sampling
Sampling unit based on information stored in information storage units 4X and 4Y
2. Sampling of the signal output of the camera shake detection units 1X and 1Y
And then perform shake calculation and shake correction based on this.
Will be. FIG. 4A is similar to FIG. 3B described above.
The camera shake detector when the camera is stationary
It is an example of an output waveform of 1X. FIG. 4B shows a camera.
Is not in a stationary state but in a normal hand-held state and with camera shake
Waveform of Camera Shake Detection Unit 1X When Operated in Prone State
It is an example. In FIG. 4B, the camera shake detecting section 1X
The output corresponding to the camera shake is made from
Shape affected by the operation of mirrors, shutters, etc.
It has become. Therefore, the camera is operated in FIG.
If not, follow the trajectory of the wavy line in the output waveform.
However, referring to the figure,
I understand. Accordingly, the zero-cross points TX1 and T1 in FIG.
The information of X2 ... is calculated from the sampling information storage unit 4X.
Then, based on the information, the output signal of the camera shake detection unit 1X is supported.
By sampling, almost the wavy line part in the output waveform
Following the trajectory. With this, at the start of exposure
In the form of mitigating the operational impact of camera mirrors, shutters, etc.
Camera shake status can be known, and more accurate image stabilization operation
It is possible to do. Next, the difference between the combination of the lens and the camera body
Camera shake caused by the impact of the mirror and shutter
FIG. 5 shows that the signal output of the detection unit 1 changes.
It will be described in the light of the above. FIG. 5A shows a camera shake detection unit and a shake compensation unit.
A camera body “A” is mounted on a lens with a positive function.
Output signal from the camera shake detector when the camera is worn and performs the exposure operation
It is a waveform. FIG. 5B shows the same lens as in FIG.
Exposure was performed with the camera body "B" attached
6 is an output signal waveform of a camera shake detection unit in the case. Where
Camera body “A” and “B” are different camera bodies
For example, if the mirror drive method is “spring drive” or “mode
Drive "or shutter curtain running" vertical "or" horizontal "
There is a difference between them. FIGS. 5A and 5B show the waveforms.
And the output of the camera shake detector at the start of exposure and at the end of exposure
It can be seen that there is a difference in the signal waveform. This is the lens and
The overall weight system changed depending on the combination of the camera body
As a result, the resonance point changes or the mirror or
This is considered to be due to the difference in the driving method of the data. As described above, when the camera operation shock is received,
Amplitude level and frequency of the output signal waveform of the camera shake detector
Differs depending on the combination of the lens and the camera body. Therefore,
Depending on the attached camera body,
The sampling of the signal output of the camera shake
Change timings TX1, TX2 ..., TY1, TY2 ...
It is desirable to do so. This allows you to
Even if the camera body has changed,
The change in the output signal waveform of the camera shake
Calculation of more accurate shake amount and shake speed, and even more
Based on this, blur correction driving can be performed. Next, referring to FIG.
Sampling information storage unit 4 for responding to body changes
The information stored in X and 4Y will be described. FIG.
Arrangement of storage information in sampling information storage units 4X and 4Y
Is described briefly, as shown in FIG.
Each address has a corresponding camera body and X axis
Sampling data in the form of data for
Information TX1, TX2..., TY1, T
Y2... Are stored. In the second embodiment,
The output of the camera shake detection units 1X and 1Y is referred to
Sampling is performed at the moment. Hereinafter, referring to the flowcharts of FIGS.
The operation of the second embodiment will be described with reference to FIG. Mei not shown
Power is supplied by turning on the
When the second control unit 6 starts operating, first,
(Step S1), and then shake the camera body.
It is determined whether a correctable lens is mounted.
This is a first control unit on the lens side performed via the communication unit 5.
Judgment from the result of communication with the
If not, the process proceeds to step S4 (step S4).
S2). And a lens that can correct blur is attached
If there is, the second control unit 6 again performs the first control on the lens side.
The communication with the unit 3 is performed. This communication is
To determine whether the camera body is attached
This corresponds to the operation of step S33 on the lens side.
(Step S3). Subsequently, the second control unit 6 outputs the first release signal
Judge whether or not is input, and wait for input
(Step S4). Then, the first release signal is input.
The camera body is equipped with a lens that can correct blur.
Judge whether or not the lens is
If not, the process proceeds to step S7 (step S7).
S5). And a lens that can correct blur is attached
In this case, communication with the first control unit 6 on the lens side is performed. This
Communication is based on the output of the camera shake
This is for starting the calculation of the speed.
This corresponds to the operation of step S36 (step S6). Further
Next, a distance measurement operation is performed by the distance measurement unit 12, and the result of the distance measurement is
Extending amount of the taking lens 8 for focusing based on
Is determined via the communication unit 5 and the first control unit 3.
The image data is transmitted to the photographing lens driving unit 7 and the photographing lens 8 is driven.
(Step S7). Subsequently, photometry by the photometry unit 11
The operation is performed (step S8). Further, the second controller 6 controls the first release again.
It is determined whether or not a signal is input, and the first release is performed.
If there is no delay signal input, the process returns to step S4.
(Step S9). And the input of the first release signal
If there is, the second release by the exposure start instruction unit 13
It is determined whether or not the close signal has been input. 2nd reli
If there is no input of the release signal, the process returns to step S8.
(Step S10). Then, the second release signal is input.
In this case, mount a lens that can correct
Judge whether or not the camera is
If not, the process proceeds to step S13 (step S13).
S11). In addition, a shake-correctable lens is attached
The second control unit 6 is the first control unit 3 on the lens side.
Communication with the This communication is based on the second release signal (exposure
Start instruction signal) is input,
Output of the camera shake detection unit 1 based on the storage contents of the
This is for sampling the force.
This corresponds to the operation of Step S41 (Step S12). Subsequently, the second controller 6 controls the mirror driver 14
After the mirror-up operation of the mirror 15 is started by
Step S13) The front curtain of the shutter 17 is a shutter driving unit
16 and the substantial exposure starts (scan).
Step S14). Then, the second control unit 6 determines a predetermined exposure time.
Is determined whether or not the predetermined exposure time has elapsed.
(Step S15), and a predetermined exposure time elapses.
Then, the rear curtain travel of the shutter 17 is performed by the shutter driving unit 16.
(Step S16). Then mirror 1
5 is performed by the mirror drive unit 14 (step
Step S17). Further, the second control unit 6 returns to the camera body again.
Determines whether a shake-correctable lens is attached
If you do not have a shake-correctable lens
Proceed to step S20 (step S18). And bu
Second control when a lens that can correct
The unit 6 communicates with the first control unit 3 on the lens side. This message
Since the exposure operation has ended after the predetermined exposure time has elapsed,
Calculation of shake amount and shake speed based on output of shake detection unit 1
And to stop the blur correction operation.
This corresponds to the operation of Step S51 (Step S19).
After the film winding operation is performed,
Returning to step S4, the above-described series of operations is repeated (step
S20). On the other hand, when the lens is mounted on the camera body
Supplies power to the first control unit 3 on the lens side.
When the first control unit 3 on the close side starts operation, first,
Perform the rise. (Step S31). Subsequently, the first control
The unit 3 turns on the power of the camera shake detection units 1X and 1Y (step
Step S32), the first control unit 3 communicates with the camera book via the communication unit 5.
The communication with the second control unit 6 on the body side is performed. This communication is
Performed to judge the camera body attached at the time
Corresponding to the operation of step S3 on the camera body side
(Step S33). Then, this step S33
Of the camera body is determined based on the communication result of
Then (step S34), the result of step S34 is
Then, the above-mentioned sampling information storage units 4X and 4Y are referred to.
A start address is determined (step S35). Then, the first control unit 3 again communicates via the communication unit 5
To communicate with the second controller 6 on the camera body side. this
For communication, the first relays signal is input on the camera body side.
To check whether the camera is
This corresponds to the operation of step S6 (step S36). Soshi
In response to the result of step S36, the first control unit 3
Indicates that the first release signal is input to the camera body
The first release signal is input.
If not, the process returns to step S36 (step S3
7). Further, the first release signal is output from the camera body.
Is confirmed by the sampling unit 2,
The output signals of the detectors 1X and 1Y are converted to a fixed sampling frequency.
Sampling by number. This sampling result is
It is sent to the first control unit 3 on the main body side (step S38).
Subsequently, calculation of the blur amount, the blur speed, the blur correction control amount, etc. is performed.
(Step S39), the calculation result of Step S39 is obtained.
Based on the result, the blur correcting unit driving unit 9 and the blur correcting unit 10
(Step S40).
Incidentally, the operation of the blur correction drive in this step S40 is the exposure
Since it is before, it may be omitted. Subsequently, the first control unit 3 again communicates via the communication unit 5.
To communicate with the second controller 6 on the camera body side. this
For communication, the second release signal is input on the camera body
To check whether the camera is
(Step S4)
1). In response to the result of step S41,
The second release signal is input on the camera body
It is determined whether or not this is the case (step S42).
If the release signal is not input, step S43
To step S44 if it has been entered.
No. Further, in step S43, the camera body
The second release signal on the side has been input for a predetermined time or more
Is determined. This is because the second relays signal is
If the input has not been performed for a longer time, the first release signal is also
Because it is highly likely that you are not being forced,
is there. Then, the second release signal is inputted for a predetermined time or more.
If not, the process returns to step S36, and the
If yes, the process returns to step S38. Then, in step S44, the sample
Sampling time stored in the storage information storage unit 4X.
.. Are referred to. Note that the reference
The start address used in step S35 is used.
(Step S44). Similarly, the information is stored in the sampling information storage unit 4Y.
The stored sampling timing data TY1,
TY2... Note that the reference start address is
The one determined in step S35 is adopted (step S4).
5). Then, the sampling unit 2 determines in step S4
4 based on the sampling timing data TX
Sampling of the output of the camera shake detection unit 1X depending on the timing
And the information is taken into the first control unit 3 (step
Step S46). And from the information of this step S46
The camera shake amount and camera shake speed around the X-axis direction,
Calculation of the blur correction control amount and the like is performed (step S47). Further, the sun in this step S45
With timing based on the pulling timing data TY
The sampling unit 2 samples the output of the camera shake detection unit 1Y.
Perform pulling, and take the information into the first control unit 3.
(Step S48). Then, the information of step S48 is obtained.
From the information, the camera shake amount and shake around the Y axis
Calculation of speed, shake correction control amount, etc. is performed (step S4).
9). Then, the result of steps S47 and S49 is obtained.
The blur correction drive corresponds to the result, and the blur correction drive unit 9
This is performed by the shake correction unit 10 (step S50).
Note that the operation from step S46 to step S50 is performed in each axis direction.
In parallel based on the sampling timing data
Done. Subsequently, the first control unit 3 again communicates via the communication unit 5.
To communicate with the second controller 6 on the camera body side. this
Communication is whether the exposure operation is completed on the camera body side
Check that the camera is
This corresponds to the operation of step S19 (step S51). Soshi
Receiving the result of step S51,
It is determined whether or not the exposure operation has been completed at
If not, the process returns to step S46 (step
S52). Then, the exposure operation on the camera body side ends.
Then, the sampling of the output of the camera shake detection unit 1 and the amount of shake,
Calculation of shake speed and end of shake correction drive operation (stop
After that, the process returns to step S36 (step S36).
53). As described above, the upper side on the lens side
In steps S38 to S40, the shake calculation and the shake correction
After the movement, in the above steps S46 to S50
The reason why the shake calculation and shake correction drive are performed again is that
To detect the latest blurring state and perform high-precision blurring correction
It is. Then, the lens was removed from the camera body.
In this case, the first control unit 3 on the lens side is turned off,
When the lens is mounted on the camera body again, the first control unit 3
Is supplied to the lens and the operation on the lens side is started. In the embodiment described above, the photographing lens side
The camera shake detecting unit 1 and the shake correcting unit 10 were mounted.
However, even if this is mounted on the camera body side as shown in FIG.
Of course it is good. In the improved example shown in FIG.
The image stabilizing unit 10 includes, for example, an image pickup unit (not shown).
Drive to offset the effect of blur on the film. FIG. 10 shows a third embodiment of the present invention.
FIG. 2 is a diagram illustrating a configuration of a camera having a camera shake detection device.
In FIG. 10, in order to detect the camera shake state.
The camera shake detecting section 1 of the camera shake detecting section 1
Sampling to sample the corresponding output signal
It is connected to the section 2. And this sampling unit 2
Based on the information from the camera shake detection unit 1
For correcting the camera shake amount, camera shake speed, and camera shake
Control for calculating the drive control amount of the camera shake correction device
The section 3 is connected to the sampling section 2. this
Corresponds to, for example, a CPU in a lens. In addition,
The first control unit 3 performs communication between the lens and the body.
Communication is performed by the first control unit 3 and the communication unit 5 via the unit 5.
Connected to the second control unit 6. This second control unit 6
Is, for example, a CPU in the body that controls the entire camera.
Applicable. Further, the shake calculated by the first control unit 3
Restoration information storage that stores restoration information such as amount and shake speed
The section 18 contacts the sampling section 2 and the first control section 3.
Has been continued. In such a configuration, the camera shake detecting section 1
The camera shake state is detected by the
Is sampled at a constant sampling frequency,
The first controller 3 on the lens side controls the amount of blur, the blur speed, and the like.
Calculation is performed. Also, the first control unit 3 communicates via the communication unit 5
Communication with the second control unit 6 on the body side is performed and the
The type of the camera body is determined. And the unillustrated in FIG.
The exposure start signal from the exposure start section shown to the second controller 6
Output to the first control unit via the communication unit 5.
3 is transmitted. In response, the first controller 3
The calculation of the amount and the shake speed is performed by the restoration from the restoration information storage unit 18.
Refer to the data and use this to get the final blur amount and
Execute the calculation such as the shake speed. FIG. 11 shows a further embodiment of the third embodiment.
Having a camera shake detection device according to the fourth embodiment
FIG. 3 is a diagram illustrating a configuration of a camera. In FIG. 11, the first control
The unit 3 is connected to restoration information storage units 18X and 18Y.
You. The repair information storage units 18X and 18Y store the above-described communication information.
The calculation of the amount of shake and the shake speed in the first control unit 3
The data used to perform the repair is stored in advance.
It is what has been. Here, the restoration information storage units 18X and 18Y
Use the stored data to restore blurring operation
The meaning will be described. In the previous embodiment, FIGS.
And an exposure start signal output from the exposure start unit 13 in FIG.
After that, the zero cross points TX1, TX2,.
, The camera shake detecting unit 1X by the sampling unit 2
I will explain about sampling the 1Y output.
Was. On the other hand, in the fourth embodiment, the exposure
At the timing when the exposure start signal is output from the start unit 13
Regardless, the sampling frequency by the sampling unit 2
Is constant. And the camera shake captured by this
The output signals of the detectors 1X and 1Y are mirrored up and
In accordance with the impact timing due to the
Based on the data in the repair information storage units 18X and 18Y.
Repair the calculation and obtain accurate blur information. This mirror
When the shutter is moved up, the impact
The output signals of the camera shake detection units 1X and 1Y in the
The data (information) to be offset is stored in the repair information storage units 18X, 18
Y. Thereby, the camera shake detection unit 1X,
Restoration of shake information obtained from 1Y and accurate shake calculation
It becomes possible. Hereinafter, referring to the flowchart of FIG.
Next, the operation of the fourth embodiment will be described. This fourth embodiment
In FIG. 7, the operation of the camera body side is first shown in FIGS.
Since the operation is the same as that of the third embodiment described above,
Description is omitted. In the operation on the lens side, the aforementioned step S
After performing the same operations as in steps S31 to S43,
The process moves to step 61. That is, in step S42,
Communication that the second release signal is input on the main unit
If there is, the process proceeds to step S61. And sump
The ring unit 2 controls the outputs of the camera shake detection units 1X and 1Y to a certain level.
Sampling at the sampling frequency
The result is sent to the first control unit 3 (step S61). Sa
Further, the first control unit 3 stores the repair data in the repair information storage unit 18X.
The data is referred to and taken in (step S62). Similarly, the first
The control unit 3 refers to the restoration data in the restoration information storage unit 18Y.
Capture (step S63). Then, in steps S61 to S63,
From the information, the output of the camera shake
The amount, shake speed, shake correction control amount, etc. are calculated (scan
Step S64). According to the result of step S64
The blur correction drive includes a blur correction device driving unit 9 and a blur correction device
10 (step S65). Furthermore, the first
The control unit 3 is a second control unit on the camera body side via the communication unit 5
6 is communicated. This is the exposure operation on the camera body side
This is for checking whether or not
Corresponds to the operation of step S19 on the camera body side (step
Step S66). In the first control unit 3, the process of this step S66
In response to the result, the exposure operation has been completed on the camera body side.
And determine if it has not been completed yet.
The process returns to step S61 (step S67). And exposure
When it is determined that the operation has been completed, the camera shake detection unit 1
Sampling of the output of the camera, calculation of the shake amount and shake speed, and
After the shake correction drive operation is completed (stopped)
The process returns to step S36 (step S68). As described in detail above, camera mirrors and cameras
The shock that occurs when the shutter moves
It is output as an error signal unrelated to camera shake at the detection unit.
This phenomenon is caused by the combination of the camera body and lens.
Differently, resulting in a reduced camera shake correction rate
The camera with the camera shake detection device of the present invention
Depends on the combination of the camera body and lens.
The output signal of the camera shake
More accurate hand movements for sampling or repair
It is possible to grasp the state of the
Reliable shake correction can be performed. According to the present invention, a camera body and a lens
Of the mirror and shutter when the combination of
High-precision camera shake detection avoids the impact of shocks that occur during operation
Provide camera system with camera shake detection device
can do.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing a configuration of a camera having a camera shake detection device according to a first embodiment of the present invention. FIG. 2 is a diagram illustrating a configuration of a camera having a camera shake detection device according to a second embodiment, which further embodies the first embodiment. FIG. 3 is a diagram for explaining sampling based on sampling information stored in a sampling information storage unit 4; FIG. 4 (a) shows a waveform similar to FIG. 3 (b),
(B) is a diagram illustrating an example of an output waveform of the camera shake detection unit 1X when the camera is operated in a normal hand-held state and with a camera shake, not in a stationary state. FIG. 5 is a diagram showing a camera shake detection unit 1 caused by the impact of the operation of the mirror and shutter described above due to the difference in the combination of the lens and the camera body.
FIG. 4 is a diagram showing a state in which the signal output of FIG. FIG. 6 is a diagram for describing information stored in a sampling information storage unit 4 for coping with a change in a camera body to be used. FIG. 7 is a flowchart for explaining the operation of the second embodiment. FIG. 8 is a flowchart for explaining the operation of the second embodiment. FIG. 9 is a diagram showing a configuration of an improved example of the second embodiment. FIG. 10 is a diagram illustrating a configuration of a camera having a camera shake detection device according to a third embodiment of the present invention. FIG. 11 is a diagram illustrating a configuration of a camera having a camera shake detection device according to a fourth embodiment, which further embodies the third embodiment. FIG. 12 is a flowchart for explaining the operation of the fourth embodiment. [Description of Signs] 1 ... camera shake detection unit, 2 ... sampling unit, 3 ... first control unit, 4 ... sampling information storage unit, 5 ... communication unit, 6 ... second control unit.

Claims (1)

(57) [Claim 1] In a camera system having a camera shake detection device including a camera body and an interchangeable lens mounted on the camera body, a camera shake state detection for detecting a camera shake state. Means for performing a release operation of the camera body in a stationary state ;
Timing information about the timing before the impact after the mechanism operation converges and which is almost the same as the output value when the release operation is not performed in a stationary state corresponds to the combination of the camera body and the interchangeable lens. Based on the timing information stored in the storage means.
Te, characterized by comprising sampling means for sampling the output of the upper Kite shake state detection means, and the hand shake correction amount calculating means for calculating a shake correction amount of the camera based on the sampling results of the sampling means, the A camera system having a camera shake detection device.