JPH086096A - Shake correcting camera - Google Patents

Abstract

PURPOSE:To improve the operability of a camera by efficiently operating a shake correcting function. CONSTITUTION:The shake correcting camera can correct the shake of a picked-up image caused by a vibration and is actuated by the operation of a photographer and provided with locking switches 9 and 10 for temporally stopping the AF and AE functions of the camera and a camera CPU 8 stopping the shake correcting operation of the camera. When a full depression switch 11b is turned on, the stopped shake correcting operation is resumed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shake correction camera having a function of correcting image shake caused by camera shake of a photographer.

[0002]

2. Description of the Related Art There is known a conventional shake correction camera of this type in which the operation of the shake correction function can be temporarily stopped by an operation of a photographer. This is for avoiding that framing is difficult to be performed because the shake correction operation suppresses operations such as panning that are intended by the photographer. For example, in the one disclosed in Japanese Patent Application Laid-Open No. 3-237411, a switch is provided on the lens barrel portion, and the photographer operates the switch to temporarily stop the operation of the shake correction function. .

[0003]

However, in the above-described conventional shake correction camera, when it is desired to temporarily stop the operation of the shake correction function, the shake correction operation stop switch must be operated each time, There is a problem that it is troublesome and lacks in operability.

The present invention has been made in order to solve the above problems, and an object thereof is to efficiently operate a shake correction function and improve the operability of a camera.

[0005]

In order to achieve the above-mentioned object, the invention of claim 1 is a shake correction camera capable of correcting shake of a photographed image due to vibration, which is operated by a photographer's operation and A lock unit for temporarily stopping a predetermined function and a shake correction control unit for controlling a shake correction operation of the camera based on the operation of the lock unit are provided. According to a second aspect of the present invention, in the shake correction camera according to the first aspect, a shake correction operation by the shake correction control unit is controlled based on a timer unit that counts the operating time of the lock unit and the count of the timer unit. And a control canceling unit for canceling.
According to a third aspect of the present invention, in the shake correction camera according to the first aspect, a release section for starting an exposure operation of the camera, and control of the shake correction operation by the shake correction control section based on the operation of the release section. And a control canceling unit for canceling.

According to a fourth aspect of the present invention, in the shake correction camera according to the first aspect, the shake correction control section is provided in a lens barrel of the camera and a lens side control section for controlling a shake correction operation of the camera. And a main control unit for controlling a series of photographing operations of the camera and transmitting a signal for controlling a shake correction operation of the camera to the lens side control unit according to the operation of the lock unit. To do. Claim 5
The invention of No. 2 is the image stabilization camera according to claim 4,
The main control unit transmits a signal for canceling the control of the camera shake correction operation to the lens side control unit based on the count of the timer unit. Characterize. Claim 6
The invention of No. 2 is the image stabilization camera according to claim 4,
A release unit for starting the exposure operation of the camera is provided, and the main control unit is based on the operation of the release unit,
A signal for canceling the control of the camera shake correction operation is transmitted to the lens side control unit.

According to a seventh aspect of the present invention, in the shake correction camera according to the first aspect, the shake correction control section controls a series of photographing operations of the camera and outputs a signal according to the state of the lock section. And a lens-side control unit that is provided in the lens barrel of the camera and controls the shake correction operation based on the signal from the main control unit. According to an eighth aspect of the present invention, in the shake correction camera according to the seventh aspect, a timer unit that counts the operating time of the lock unit is provided, and the main control unit outputs a signal according to the count of the timer unit to the lens It is transmitted to the side control unit, and the lens side control unit releases the control of the shake correction operation based on the signal from the main control unit. According to a ninth aspect of the present invention, in the shake correction camera according to the seventh aspect, a release section for starting an exposure operation of the camera is provided, and the main control section outputs a signal according to a state of the release section to the lens. It is transmitted to the side control unit, and the lens side control unit releases the control of the shake correction operation based on the signal from the main control unit.

According to a tenth aspect of the present invention, in the shake correction camera according to any of the first to ninth aspects, a focusing section for adjusting an image forming state of the photographing lens is provided, and the lock section operates the focusing section. It is characterized by stopping. According to an eleventh aspect of the present invention, in the shake correction camera according to the first to ninth aspects, an automatic exposure setting unit that sets an exposure condition at the time of shooting exposure
The lock unit stops the operation of the automatic exposure setting unit. The invention of claim 12 is,
9. The shake correction camera according to Item 9, further comprising: a focusing unit that adjusts an image formation state of a photographing lens; and an automatic exposure setting unit that sets an exposure condition at the time of photographing exposure, wherein the lock unit is the focusing unit. The operation of the automatic exposure setting unit is stopped at the same time. The invention of claim 13 relates to claims 1 to 12.
The shake correction camera described in (1) is characterized by comprising a recognition unit for notifying a photographer that the lock unit is operating.

[0009]

In the present invention, when the lock unit used in the preparation stage for photographing is operated by the photographer's operation, the shake correction control unit controls (for example, stops) the shake correction operation. Therefore, when a predetermined function of the camera is locked, that is, when it is preferable to control the shake correction operation in the shooting preparation stage, the shake correction operation is controlled without a special operation by the photographer. , The usability of the camera is improved. Furthermore, claim 10, 11, 12
In the invention, the shake correction operation is controlled by stopping the operations of the focusing unit (AF unit) and the automatic exposure setting unit (AE unit) by the lock unit. Therefore, operability such as panning is improved.

Further, in the inventions of claims 4 and 7, the main controller and the lens-side controller separately control the shake correction operation. Therefore, even in a camera with interchangeable lenses, the shake correction control of the present invention can be performed. In the inventions of claims 2, 3, 5, 6, 8 and 9, the shake correction control is automatically released when the release portion is operated or after a predetermined time has elapsed from the operation of the lock portion by the timer portion. . Therefore, it becomes possible to perform the image pickup in which the image blur is corrected while the lock function is effective, and the usability of the camera is improved when the subject is observed again after the framing. Further, in the invention of claim 13, the recognition section notifies the photographer that the lock section is operating. Therefore, the usability of the camera is further improved.

[0011]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an electrical configuration diagram showing the configuration of a first embodiment of an image stabilization camera (AF still camera) according to the present invention. The shake detection unit 1 is for detecting shake caused by hand shake acting on the camera. The shake detection unit 1 is, for example, a conventionally known angular velocity detection sensor, and is mounted on a small device such as a camera as follows.
A type called a vibration type gyro is suitable.
The image blur correction driving unit 2 drives a blur correction optical system (not shown) in a direction substantially perpendicular to the optical axis direction in order to correct the image blur. Image blur correction drive unit 2
As the known ones, for example, (1) moving the shake correction optical system by rotation of a feed screw by a motor, (2) linear movement of a coil called a voice coil,
Alternatively, one that moves the shake correction optical system by an electromagnetic force or the like that acts on the winding coil is preferable.

The photometric unit 3 is for measuring the brightness of the subject or the illuminance of the subject light transmitted through the taking lens in the TTL photometric system in order to determine the exposure during photography. The diaphragm driving unit 4 is for driving the diaphragm that adjusts the illuminance on the film surface during the exposure operation of the camera. The shutter drive unit 5 is for driving a shutter that adjusts the film exposure time during the exposure operation of the camera. The focus detection unit 6 is for detecting the image formation state of the photographing lens. The focusing drive unit 7 is for adjusting the image forming state of the photographing lens. Camera CP
U8 is electrically connected to the shake detection unit 1 to the focus drive unit 7 and switches 9 to 11 described later, detects the state of each detection unit and each switch, and drives each drive unit. It is for controlling the start and stop of. Here, the camera CPU 8 in the embodiment has various functions such as a storage function, a calculation function, a state determination function, and a time counting function.

The AF lock switch 9 is a switch for stopping the drive of the focusing drive section 7. Camera CPU
When the closed state of the AF lock switch 9 is detected, the control unit 8 controls the focus drive unit 7 to stop driving.
The AE lock switch 10 is a switch for stopping the update of the exposure calculation value. When detecting the closed state of the AE lock switch 10, the camera CPU 8 stops the update of the exposure calculation value executed in the camera CPU 8.
Therefore, when the exposure operation of the camera is started with the AE lock switch 10 closed, the AE lock switch 1
The drive control of the diaphragm drive unit 4 and the shutter drive unit 5 is performed with the exposure calculation value calculated based on the detection information of the photometry unit 3 immediately before 0 is closed. The release switch 11 includes a half-push switch 11a and a full-push switch 11b. The half-push switch 11a is a switch for starting a series of operations of the camera. When detecting the closed state of the half-push switch 11a, the camera CPU 8 starts a series of operations of the camera. Full push switch 11b
Is a switch for starting the exposure operation of the camera. The camera CPU 8 starts the exposure operation of the camera when detecting the closed state of the full-press switch 11b.

FIG. 2 is a flow chart showing a first embodiment of the operation of the shake correction drive. Further, FIG. 3 is a flowchart following FIG. When the camera CPU 8 detects the closed state of the halfway press switch 11a, step 1
The operation shown in FIG. 2 is started from 00. First, in step 110, the camera CPU 8 sets the parameter PM for determining the states of the AF lock switch 9 and the AE lock switch 10 to “00”, and resets the parameter PM. The parameter PM is preferably stored in the RAM portion in the camera CPU 8, or a storage element such as a RAM or EEPROM provided elsewhere, or
It may be stored in a magnetic or magneto-optical storage medium or the like. Next, in step 120, the camera CPU 8
The state of the full-press switch 11b is detected. When the full-push switch 11b is in the open state, the routine proceeds to step 130, and when it is in the closed state, the routine proceeds to step 250 in FIG. 3 to perform the exposure operation.

At step 130, the camera CPU 8
Information about the subject brightness detected by the photometric unit 3 is input. Subsequently, in step 140, the camera CPU 8 inputs information on the image formation state of the camera detected by the focus detection unit 6. Further, in step 150, the camera CPU 8
Inputs information about vibration (for example, angular velocity) acting on the camera detected by the shake detection unit 1. Next Step 1
At 60, the camera CPU 8 uses the AE lock switch 10
Detect the state of. When the AE lock switch 10 is in the open state, the process proceeds to step 170, and when it is in the close state (when the photographer turns the AE lock switch 10 on), the process proceeds to step 180 without performing the exposure calculation of step 170.

At step 170, the camera CPU 8
Based on the detection information of the photometry unit 3 obtained in step 130, the control values of the diaphragm drive unit 4 and the shutter drive unit 5 for performing proper exposure are calculated and stored. At this time,
AE mode settings such as aperture priority AE, shutter priority AE, program AE, aperture value set for aperture priority AE, shutter speed set for shutter priority AE, or film sensitivity used for shooting, Information related to exposure such as exposure correction is also used in the above calculation. On the other hand, in step 180, the camera CP
Since U8 stores that the AE lock switch 10 is in the closed state, the parameter P set in step 110 is set.
Add “10” to M and proceed to step 190.

At step 190, the camera CPU 8
The state of the AF lock switch 9 is detected. When the AF lock switch 9 is in the open state, the process proceeds to step 200, and when the AF lock switch 9 is in the closed state (when the photographer turns on the AF lock switch 9), the process proceeds to step 210 without performing the focusing drive of step 200. . In step 200, the camera CPU 8 calculates the amount of adjustment of the image formation state based on the detection information of the focus detection unit 6 obtained in step 140, outputs a drive control signal to the focusing drive unit 7, and in step 220. move on. Here, when no adjustment is necessary (in focus), the drive is not performed. On the other hand, in step 210, the camera CPU 8 stores that the AF lock switch 9 is in the closed state, and therefore step 110 or step 180
“01” is added to the parameter PM set in step and the process proceeds to step 220.

At step 220, the camera CPU 8
It is determined whether or not the value of the parameter PM is “00”. When the parameter PM is "00", that is, A
When the E lock switch 10 and the AF lock switch 9 are not closed, the routine proceeds to step 230. On the other hand, when the parameter PM is not “00”, that is, A
When at least one of the E lock switch 10 and the AF lock switch 9 is closed, step 2
Proceed to 40.

At step 230, the camera CPU 8
Based on the detection information of the shake detection unit 1 obtained in step 150, the image shake amount of the camera is calculated, and a drive control signal for correcting the image shake is output to the image shake correction drive unit 2. When this step is passed for the first time (including when this step is passed for the first time after passing step 240), driving of the image blur correction drive unit 2 is started. After the first time, the shake correction drive is continuously performed. Then, the process returns to step 110. In the present embodiment, a detailed description of the shake correction drive control method is omitted, but some of the latest shake information obtained in step 150 is stored in a storage element such as a RAM inside the camera CPU 8 or outside, The camera CPU 8 separately calculates statistical and analytical data such as average value, rate of change, integral value, differential value, second-order differential value or re-average value after excluding abnormal values of these time-series information. Then, the camera CPU 8 outputs the optimum drive control signal for image shake correction to the image shake correction drive unit 2 based on both the detection information of the shake detection unit 1 obtained in step 150 and the calculated value. You may do it.

On the other hand, in step 240, the camera CPU
Reference numeral 8 outputs a drive stop signal to the image blur correction drive unit 2 to stop the drive of the image blur correction drive unit 2. When this step is continuously passed, the drive stop of the image blur correction drive unit 2 is continued. Then, the process returns to step 110.

In step 120, when the full-press switch 11b is in the closed state, step 250 in FIG.
Proceed to. In step 250, the camera CPU 8 inputs information about the shake (eg, angular velocity) acting on the camera detected by the shake detection unit 1. This is step 150
This is the same processing as. In the next step 260, the camera CPU 8 calculates the image shake amount of the camera based on the detection information of the shake detection unit 1 obtained in step 250, and outputs the drive control signal for correcting the image shake in the image shake correction driving. Output to section 2. This is the same processing as step 230. Note that this step is passed even when the AE lock switch 10 or the AF lock switch 9 is in the closed state. At the time of exposure of the camera, even if both switches 9 and 10 are closed, the stopped state of the image blur correction drive is released, and the image blur correction drive is performed at the time of exposure regardless of the state of both switches 9 and 10. Will be done.

At the next step 270, the camera starts the exposure operation. The camera CPU 8 outputs a drive control signal to the diaphragm drive unit 4, the shutter drive unit 5, and other portions that need to be driven at the time of starting exposure, and controls each unit so that proper exposure can be performed. . It should be noted that this step is effective only for the first pass, and since the exposure operation is already in progress for the second time and thereafter, a series of exposure operations is continued. In step 280, the camera CPU 8 determines whether it is the timing to end the exposure operation. If it is not the end timing, the process returns to step 250, and if it is the end timing, the process proceeds to step 290. Step 29
At 0, the camera CPU 8 outputs a drive control signal to the diaphragm drive unit 4, the shutter drive unit 5, etc., and ends the exposure operation. At this time, a drive stop signal is also output to the image blur correction drive unit 2 to end the blur correction drive. Then, the process proceeds to step 300 to end the series of operations.

Through the series of operations described above, the shake correction camera according to the present invention can be operated by the AF lock switch 9 or the AE lock switch 10 during the framing operation in the preparation stage for photographing.
When at least one of the above is turned on by the photographer, the shake correction operation is stopped. Therefore, the operation for stopping the shake correction operation by the photographer is unnecessary, and the operability of the camera is improved. Since the shake correction operation is automatically started at the same time as the exposure operation is started, the exposure operation is not performed while the shake correction operation is stopped. As an application of this embodiment, the AE lock switch 10 and A
The camera may be provided with a switch that also serves as both the F lock switch 9 and the image blur correction operation may be stopped depending on the state of the switch. For example, the camera may be provided with a changeover switch which also functions as an AE lock function when the AF lock switch 9 is operated.
The lock switch 10 may also function as the AF lock function switch.

Alternatively, the setting of such a switch function is performed by, for example, giving a command signal to the camera CPU 8 from the outside,
The function of each switch may be changed. In the above case, the AE lock switch 10 and the AF lock switch 9 may be combined into one switch, and in this case, steps 190 to 210 are unnecessary. Further, the setting of the value of the parameter PM is not limited to this embodiment. For example, the setting in step 110 is set to “0”, the addition in steps 180 and 210 is set to “+1”, and the addition in step 220 is performed. The judgment is "PM =
"0"? It is also good as Another determination format may be used as long as the camera CPU 8 can identify the states of the two switches. Furthermore, the stop of the shake correction operation may be linked to only one of the AF lock switch 9 and the AE lock switch 10. Here, depending on the photographer's preference, a switch that can be switched so that either one or both of them may be interlocked may be added.

FIG. 4 is a flow chart showing a second embodiment of the operation of the shake correction drive. In this example,
The camera CPU 8 has a timer function for counting the duration of the closed state of the AF lock switch 9 or the AE lock switch 10. Then, after a lapse of a predetermined time after the photographer closes the AF lock switch 9 or the AE lock switch 10, the stop state of the shake correction drive is automatically released. With such a configuration, the shake correction drive is automatically restarted when the subject is observed again after the framing operation before shooting, and the usability of the shake correction camera is further improved.

In FIG. 4, when the camera CPU 8 detects that the half-push switch 11a is in the closed state, the operation starts from step 100. The same steps as those described with reference to FIG.
A duplicate description will be omitted. First, in step 105,
The camera CPU 8 resets the parameter TM for counting the duration of the closed state of the AF lock switch 9 or the AE lock switch 10 to "0". It is preferable that the parameter TM is stored in the RAM or other information storage medium in the camera CPU 8 similarly to the parameter PM in FIG. Next, the process proceeds to step 110 and the same operation as in FIG. 2 is performed until step 220.

In step 220, the parameter PM
Is "00", the process proceeds to step 223, and if the parameter PM is not "00", the process proceeds to step 225. At step 223, since the AE lock switch 10 and the AF lock switch 9 are not in the closed state, the camera C
PU8 resets the parameter TM as "0",
Go to step 230. On the other hand, in step 225, A
Since at least one of the E lock switch 10 and the AF lock switch 9 is closed, the camera CPU 8
Adds "1" to the parameter TM and then proceeds to step 227.
Proceed to.

At step 227, the camera CPU 8
It is determined whether the parameter TM is larger than the predetermined value "C". When the parameter TM is equal to or less than the predetermined value "C", that is, the AF lock switch 9 or the AE lock switch 10
When the duration of the closed state has not exceeded the predetermined time, the process proceeds to step 240 (the shake correction function is stopped). On the other hand, when the parameter TM is larger than the predetermined value “C” in step 227, that is, when the duration of the closed state of the AF lock switch 9 or the AE lock switch 10 has passed the predetermined time, the process proceeds to step 230 (the shake correction function is performed. Driven). Steps 230 and 24
At 0, the same operation as in FIG. 2 is performed.

With the above operation, the AF lock switch 9
Alternatively, the duration of the closed state of the AE lock switch 10 is counted, and when the predetermined time has elapsed, the stop state of the shake correction drive is automatically released. When the AF lock switch 9 or the AE lock switch 10 is in the closed state and a predetermined time has passed, the count-up of the parameter TM continues even after the branch state of the step 227 is automatically canceled. When both switches 9 and 10 are opened, they are reset in step 223. Further, the setting of the value of the parameter TM is not limited to this embodiment, and for example, the setting in step 105 and step 223 may be “TM =
“C” (C is a predetermined value), the calculation in step 225 is subtraction of “TM = TM−1”, and the determination in step 220 is “TM <“ 0 ”? It is also good as Another determination format may be used as long as the camera CPU 8 can detect the duration of the closed state of the two switches 9 and 10. Further, the timer function may be interlocked with only one of the AF lock switch 9 and the AE lock switch 10. Further, a changeover switch selectable by the photographer may be added so that either one or both of them are interlocked.

FIG. 5 is a diagram showing the electrical construction of the second embodiment of the shake correction camera according to the present invention. This shake correction camera is a camera with interchangeable lenses. Below, Figure 1
The same parts as those in FIG. The shake correction camera includes a body CPU 8a on the camera body side and a lens CPU 8b on the interchangeable lens unit side (lens barrel side). Body CPU
The lens unit 8a and the lens CPU 8b are electrically connected to each other by mounting the lens unit on the body of the camera. On the lens unit side, a shake detection unit 1, an image shake correction drive unit 2, an aperture drive unit 4, and a focus drive unit 7 are provided.
The PU 8b performs signal processing, control processing, and the like of these parts. On the other hand, the focus detection unit 6, the photometry unit 3, the shutter drive unit 5, and the switches 9, 10, 11 are provided on the camera body side, and the body CPU 8a performs signal processing, control processing, etc. of these parts. To do.

The lens CPU 8b controls the steps 150, 200, 230, 240 in FIG. 4 and the steps 250, 260 in FIG. 3, and the body CPU 8a controls the other steps. that time,
Steps 150 and 250 are steps 230 and 24.
It suffices that the steps are performed before 0 and step 260, and the order of the steps does not necessarily have to be the relationship shown in FIG. Further, in step 200, the body CPU 8a calculates the adjustment amount of the image-forming state, transmits a signal relating to the drive amount to perform focus drive to the lens CPU 8b, and the lens CPU 8b uses the focus drive unit 7 based on the signal. The drive control signal may be output to the.

Furthermore, the body CPU 8a transmits a shake correction drive start or operation continuation signal to the lens CPU 8b in step 230 when proceeding from step 227 to step 230, and when proceeding to step 240,
In step 240, a signal for stopping or continuing the shake correction drive is transmitted to the lens CPU 8b, and the lens CPU 8b
Should follow the instructions of these body CPUs 8a. In addition, the shake correction drive start in step 260,
The instruction regarding the timing of the exposure start in step 270 and the end of the exposure operation in step 290 is the body CP.
It may be performed by transmission from the U8a to the lens CPU 8b.

Alternatively, as another sharing method, steps 105, 110, 150, 180, 210, 220, 2
Parameter P of 23, 225, 227, 230, 240
Lens CP for setting and calculation of M and TM, and determination work
It may be performed in U8b. In this case, the body CPU 8a may detect the state of each switch in steps 160 and 190, and the information signal regarding the state of the switch may be transmitted to the lens CPU 8b.

FIG. 6 is a diagram showing the electrical construction of the third embodiment of the shake correction camera according to the present invention. The third embodiment is a modification of the second embodiment and has a diaphragm driving function,
The focus drive function is provided on the camera body side. The camera control CPU 8c is provided on the camera body side and has a photometric unit 3, an aperture drive unit 4, a shutter drive unit 5, a focus detection unit 6, a focus drive unit 7, an AF lock switch 9, and A.
The signal processing and control processing of the E lock switch 10, the release switch 11 and the like are performed. The image blur correction control CPU 8d is provided on the lens unit side and performs signal processing and control processing of the blur detection unit 1 and the image blur correction drive unit 2.

The image blur correction control CPU 8d controls steps 150, 230, 240 in FIG. 4 and steps 250, 260 in FIG. 3, and otherwise controls the camera control CPU 8c. At that time, step 1
The steps 50 and 250 may be performed before the steps 230 or 240 and the step 260, respectively, and the order of the steps does not necessarily have to be the relationship shown in FIG. Further, the camera control CPU 8c transmits a start or operation continuation signal of image blur correction drive to the image blur correction control CPU 8d in step 230 when proceeding from step 227 to step 230, and when proceeding to step 240, step Image shake correction control CPU 8 at 240
It is preferable that a signal for stopping or continuing the image blur correction drive be transmitted to d, and the image blur correction control CPU 8d follows the instructions of the camera control CPU 8c. In addition, it is preferable that the instruction regarding the timing in steps 260 and 290 is issued from the camera control CPU 8c to the image blur correction control CPU 8d.

Alternatively, as another sharing method, step 1
05, 110, 150, 180, 210, 220, 22
Parameter PM of 3,225,227,230,240
Also, the setting, calculation, and determination work of TM may be performed by the image blur correction control CPU 8d. In this case, the state of each switch in step 160 and step 190 may be detected by the camera control CPU 8c, and an information signal regarding the state of the switch may be transmitted to the image blur correction control CPU 8d.

Further, in step 240 of FIGS. 2 and 4, the driving of the image blur correction driving section 2 may not be completely stopped, and an operation different from that in step 230 may be performed.

The image blur amount calculated in step 230 is multiplied by a magnification of 1 or less (about 1/4 to 1/20, or 1/1).
It is also possible to output the image blur amount obtained by multiplying 8 to 1/12) to the image blur correction drive unit 2 as a drive control signal. Therefore, the drive amount for image blur correction is apparently small. As a result, it is possible to avoid a situation in which an operation such as a panning operation, which is performed by the photographer's intention, is suppressed by the image blur correction operation, and framing is difficult to perform. Alternatively, the image blur is caused only in a part of the central portion within the drivable range of the image blur correction drive unit 2 (for example, about 1/4 to 1/20, or 1/8 to 1/12 of the drive range is preferable). When the correction drive unit 2 is driven, the drive range for image blur correction is narrowed and the same effect as described above is obtained.

Furthermore, in addition to the centering bias of the known image blur correction drive (a drive control that always tries to move the correction means toward the center of the correctable range, in addition to the drive control amount corresponding to the image blur amount to be corrected). Amount. Centripetal force.)
If a drive control signal equivalent to the one having an increased intensity (4 to 20 times, or 8 to 12 times is preferable) is output to the image blur correction drive unit 2, the drive range for image blur correction is effectively narrowed. The driving amount is apparently small, and the same effect as described above can be obtained. Furthermore, if the above means are used in combination as necessary, framing becomes easier.

When the operation of the image blur correction drive is controlled in conjunction with the lock function of the camera, in order to inform the photographer of the on / off states of the AE lock, AF lock, and correction operation, for example, LED in viewfinder,
If a display device such as LCD or EC (electrochromic) is used to display that effect, or if a piezoelectric buzzer or the like emits sound continuously or intermittently, a more convenient camera is provided. You can In particular, it is effective when the presence or absence of the shake correction operation is switched using a timer as in the flowchart shown in FIG.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment,
Various modifications are possible without departing from the spirit of the invention. For example, in the embodiment, the image blur correction driving unit 2 causes
Although an example in which the shake correction optical system is driven in a direction substantially perpendicular to the optical axis has been shown, the invention is not limited to this. The image blur may be corrected by a method of deflecting the light flux or the like.

[0042]

As described above, according to the present invention, when a predetermined function is locked by the lock portion, that is, when it is preferable to control the shake correction operation, the photographer does not perform a special operation. Since the shake correction operation is controlled, it is possible to reduce the number of operation members and to provide a user-friendly camera. further,
According to the tenth, eleventh and twelfth aspects of the present invention, the shake correction operation is controlled by stopping the operation of the focusing unit and the automatic exposure control, so that the operability such as panning can be improved.

According to the fourth and seventh aspects of the invention, even in a camera with interchangeable lenses, shake correction control can be shared between the camera body side and the lens side. According to the inventions of claims 2, 3, 5, 6, 8 and 9, it is possible to perform image pickup in which the image blur is corrected while the lock function remains effective, and when the subject is observed again after framing. Moreover, the shake correction operation can be restarted, and the operability of the camera can be improved. Further, according to the invention of claim 13, the photographer can know whether or not the shake correction operation is controlled, and the usability of the camera can be further improved.

[Brief description of drawings]

FIG. 1 is an electrical configuration diagram showing a configuration of a first embodiment of a shake correction camera (AF still camera) according to the present invention.

FIG. 2 is a flowchart showing a first embodiment of a shake correction drive operation.

FIG. 3 is a flowchart following FIG.

FIG. 4 is a flowchart showing a second embodiment of the operation of shake correction drive.

FIG. 5 is a diagram showing an electrical configuration of a second embodiment of the image stabilization camera according to the present invention.

FIG. 6 is a diagram showing an electrical configuration of a shake correction camera according to a third embodiment of the present invention.

[Explanation of symbols]

 1 shake detection unit 2 image shake correction drive unit 3 photometry unit 4 aperture drive unit 5 shutter drive unit 6 focus detection unit 7 focus drive unit 8 camera CPU 9 AF lock switch 10 AE lock switch 11 release switch 11a half press switch 11b all Push switch

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location G03B 7/08 17/00 Z

Claims (13)

[Claims] 1. A shake correction camera capable of correcting shake of a photographed image due to vibration, and a lock part which is operated by an operation of a photographer and temporarily stops a predetermined function of the camera, and an operation of the lock part. And a shake correction control unit that controls a shake correction operation of the camera based on the above. 2. The shake correction camera according to claim 1, wherein a timer unit that counts the operating time of the lock unit, and based on the count of the timer unit, cancels the control of the shake correction operation by the shake correction control unit. An image stabilization camera, comprising: 3. The shake correction camera according to claim 1, wherein the release section for starting the exposure operation of the camera, and the control of the shake correction operation by the shake correction control section are canceled based on the operation of the release section. An image stabilization camera, comprising: 4. The shake correction camera according to claim 1, wherein the shake correction control unit is provided in a lens barrel of the camera, and includes a lens side control unit that controls a shake correction operation of the camera and a series of the camera. And a main control unit that transmits a signal for controlling the shake correction operation of the camera to the lens side control unit according to the operation of the lock unit. 5. The shake correction camera according to claim 4, further comprising a timer unit that counts an operating time of the lock unit, wherein the main control unit is based on a count of the timer unit,
A shake correction camera, which transmits a signal for canceling the control of the shake correction operation of the camera to the lens side control unit. 6. The shake correction camera according to claim 4, further comprising a release section for starting an exposure operation of the camera, wherein the main control section performs a shake correction operation of the camera based on an operation of the release section. A shake correction camera, wherein a signal for canceling control is transmitted to the lens side control unit. 7. The shake correction camera according to claim 1, wherein the shake correction control unit controls a series of photographing operations of the camera and outputs a signal according to a state of the lock unit. A shake correction camera, comprising: a lens side control unit that is provided inside a lens barrel of the camera and controls a shake correction operation based on the signal from the main control unit. 8. The shake correction camera according to claim 7, further comprising a timer unit that counts an operating time of the lock unit, wherein the main control unit controls the lens side to output a signal according to the count of the timer unit. And a lens-side control unit cancels control of a shake correction operation based on the signal from the main control unit. 9. The shake correction camera according to claim 7, further comprising a release section for starting an exposure operation of the camera, wherein the main control section controls the lens side by a signal according to a state of the release section. And a lens-side control unit cancels control of a shake correction operation based on the signal from the main control unit. 10. The shake correction camera according to claim 1, further comprising a focusing unit that adjusts an image formation state of a taking lens, wherein the lock unit stops the operation of the focusing unit. A shake correction camera. 11. The shake correction camera according to claim 1, further comprising an automatic exposure setting unit that sets an exposure condition at the time of shooting exposure, wherein the lock unit stops the operation of the automatic exposure setting unit. A shake correction camera characterized by. 12. The shake correction camera according to claim 1, further comprising: a focusing unit that adjusts an image formation state of a photographing lens, and an automatic exposure setting unit that sets exposure conditions at the time of photographing exposure, The shake correction camera, wherein the lock unit simultaneously stops the operations of the focusing unit and the automatic exposure setting unit. 13. The shake correction camera according to claim 1, further comprising a recognition unit for notifying a photographer that the lock unit is operating.