JPH10319457A - Camera system, camera body and interchangeable lens - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a camera system, a camera body and an interchangeable lens capable of reducing power consumption. SOLUTION: This camera body 1 is equipped with a 1st shake correcting device consisting of a CCD driving part 100 driving a CCD 10. This interchangeable lens 2 is equipped with a 2nd shake correcting device consisting of a lens driving part 200 driving a shake correction lens 20. In a photographing preparation state, the lens 20 corrects shake by driving the driving part 200, and an image reflected by a quick return mirror 120 is confirmed through a finder optical system 11. In a photographing state, the mirror 120 is up, so that a subject image is not confirmed through the optical system 11. In such a case, the driving part 100 drives the CCD 10 so as to correct the shake.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera system, a camera body, and an interchangeable lens equipped with a shake correcting device for correcting shake.

[0002]

2. Description of the Related Art A digital still camera easily performs transmission and reception of data through a communication line, processing of image data, and the like by capturing captured video as data. Among such digital still cameras, there is a type in which an interchangeable lens for a conventional silver halide camera can be mounted as it is. For this reason, the photographer can enjoy photographing in the same manner as a silver halide camera by purchasing only the digital still camera body and mounting an interchangeable lens for the silver halide camera.

On the other hand, in the field of silver halide cameras, a technique for driving a blur correction optical system in accordance with an output signal of a sensor for detecting camera shake and the like to correct blur is established following AF and AE techniques. It is getting. Such camera shake can occur in a digital still camera as well as in a silver halide camera. A digital still camera hardly has a mechanical shutter like a silver halide camera, but there is a concept of a shutter speed like the silver halide camera.
The shutter speed in a digital still camera is
CCD (Charge Coupled Device)
e; charge transfer time of the charge transfer element), which varies according to the photometric value as in the case of the silver halide camera. Then, the blur generated in the imaging device during the charge accumulation time is stored as a blurred image in a memory in the imaging device. JP-A-63-217
Japanese Patent Application Publication No. 778 discloses a technique for correcting a camera shake of an imaging device by using a CCD. The shake correction device includes a detection unit (angular velocity sensor) that detects a shake of the imaging device and outputs a detection signal, a driving unit that drives the CCD in a direction to cancel the shake, and the like.

[0004]

The conventional camera is A
Various technologies such as F, AE, blur correction, and electronic recording have been added, and the problem of power consumption of the camera has become more serious. The conventional image stabilization device corrects the shot image to a clear image without camera shake by driving the image stabilization lens. This stops blurring of the subject, making it easier to catch the subject in the viewfinder. For this reason, the conventional blur correction device corrects the blur by continuously driving the heavy blur correction lens according to the blur immediately before shooting.
As a result, the conventional blur correction device consumes a particularly high amount of power when the operations such as the mirror operation, the aperture drive, and the AF drive overlap with the blur correction operation. There is a possibility that the battery needs to be frequently replaced.

[0005] It is an object of the present invention to provide a camera system, a camera body, and an interchangeable lens that can reduce power consumption.

[0006]

The present invention solves the above-mentioned problems by the following means. In addition, in order to make it easy to understand, description is given with reference numerals corresponding to the embodiment of the present invention, but the present invention is not limited to this. That is, the invention of claim 1 includes a first (20) and a second shake correction unit (10, 40), a first operating unit (200) for operating the first shake correction unit, and A second operating unit (100, 400) for operating the second shake correcting unit, and a control unit (14, 2) for controlling the first and second operating units.
4), and the control unit operates the first or second operating unit according to the shooting timing (S500, S100
0, S2000).

According to a second aspect of the present invention, in the camera system according to the first aspect, the control section activates the first operating section (S500) during a shooting preparation operation, and operates the second operation section during a shooting operation. (S1000, S2)
000).

[0008] The invention of claim 3 is claim 1 or claim 2.
In the camera system described in (1), the first blur correction unit includes a blur correction optical system (2) that changes an optical path of a photographing optical system.
0), the second shake correcting section includes an image information converting section (10) for converting a subject image into image information, and the first operating section includes a first operating section for driving the shake correcting optical system. Wherein the second operating section includes a second driving section (100) for driving the image information converting section.

[0009] The invention of claim 4 is the invention of claim 1 or claim 2.
In the camera system described in 1, the first blur correction unit includes a first blur correction optical system (20) that changes an optical path of a shooting optical system, and the second blur correction unit includes a first blur correction unit of the shooting optical system. A second blur correction optical system for changing an optical path, the first operating unit includes a first drive unit for driving the first blur correction optical system, and Is a camera system including a second drive section (400) for driving the second shake correction optical system.

[0010] The invention of claim 5 is the invention of claim 3 or claim 4.
In the camera system described in (1), a shake detection unit (13, 2) that detects shake and outputs shake detection information (S200).
3) and a calculation unit (14, 24) for calculating shake correction information according to a shake correction amount based on the shake detection information, wherein the control unit is configured to calculate the blur correction information based on the shake correction information. Drive the first and second drive units (S500, S100
0).

[0011] The invention of claim 6 is claim 1 or claim 2.
In the camera system described in (1), the first blur correction unit includes a blur correction optical system (2) that changes an optical path of a photographing optical system.
0), the second blur correction unit includes an image information conversion unit (10) that converts a subject image into image information, and the first operating unit includes a driving unit that drives the blur correction optical system. (200), wherein the second operating section includes an image restoration section (14) for restoring the subject image to a blur-free image.

According to a seventh aspect of the present invention, in the camera system according to the sixth aspect, a blur detecting section (13, 23) for detecting blur and outputting blur detection information (S200), based on the blur detection information. And an operation unit (14, 24) for calculating shake correction information according to the shake correction amount, wherein the control unit drives the drive unit based on the shake correction information (S500), and A camera system, wherein a subject image is restored to a blur-free image by the image restoration unit based on correction information and the image information (S2000).

[0013] The invention of claim 8 is the first to seventh aspects of the present invention.
In the camera system according to any one of the above,
An optical path switching unit (120) for guiding a light beam to the finder optical system (11) or the second blur correction unit is provided. The optical path switching unit guides the light beam to at least the finder optical system during a shooting preparation operation (S1600). During shooting operation,
A camera system for guiding a light beam to the second shake correction unit (S700).

According to a ninth aspect of the present invention, there is provided a camera body mountable on an interchangeable lens (2) including a lens-side blur correcting section (20) and a lens-side operating section (200) for operating the lens-side blur correcting section. In (1), a body-side shake correcting section (10, 40), a body-side operating section (100, 400) for operating the body-side shake correcting section, and a body-side control section ( 14), the body-side control unit operates the body-side operation unit (S1000, S2000) or instructs the interchangeable lens to operate the lens-side operation unit according to the shooting timing (S50).
0) is a camera body.

According to a tenth aspect of the present invention, in the camera body according to the ninth aspect, at the time of a shooting preparation operation, the control unit instructs the interchangeable lens side to operate the lens side operation unit (S500), and performs shooting. During operation, the camera body is characterized in that the body-side operation section is operated (S1000, S2000).

According to an eleventh aspect of the present invention, in the camera body according to the ninth or tenth aspect, the body-side blur correction unit includes an image information conversion unit (10) for converting a subject image into image information. The body-side operation unit includes a body-side drive unit (100) that drives the image information conversion unit.

According to a twelfth aspect of the present invention, in the camera body according to the ninth or tenth aspect, the body-side blur correction unit includes a blur correction optical system (40) for changing an optical path of a photographing optical system, The body-side operation section includes a body-side drive section (400) that drives the shake correction optical system.

According to a thirteenth aspect of the present invention, in the camera body according to the eleventh or twelfth aspect, blur is detected,
A shake detection unit (1) that outputs shake detection information (S200)
3) and an operation unit (14) for calculating shake correction information according to the shake correction amount based on the shake detection information,
The body-side control unit, based on the blur correction information,
A camera body characterized in that the body-side drive section is driven (S1000).

According to a fourteenth aspect of the present invention, in the camera body according to the eleventh or twelfth aspect, shake correction information corresponding to a shake correction amount is calculated based on shake detection information output from the interchangeable lens. The camera body includes a calculation unit (14) that performs the operation, and the body-side control unit drives the body-side drive unit (100) based on the shake correction information.

According to a fifteenth aspect of the present invention, in the camera body according to the ninth or tenth aspect, the body-side blur correction unit includes an image information conversion unit (10) for converting a subject image into image information. The body-side operating unit is a camera body including an image restoration unit (14) for restoring a subject image to a blur-free image.

According to a sixteenth aspect of the present invention, in the camera body according to the fifteenth aspect, a blur detecting section (13) for detecting blur and outputting blur detection information (S200); A calculation unit (14) for calculating shake correction information corresponding to a shake correction amount, wherein the body-side control unit performs a calculation based on the shake correction information and the image information,
A camera body characterized in that a subject image is restored to a blur-free image by the image restoration unit (S2000).

According to a seventeenth aspect of the present invention, in the camera body according to the fifteenth aspect, based on the blur detection information output from the interchangeable lens side, a calculation unit (where the blur correction information is calculated in accordance with a blur correction amount). 14), wherein the body-side control section causes the image restoration section to restore the subject image to a blur-free image based on the shake correction information and the image information.

According to an eighteenth aspect of the present invention, in the camera body according to any one of the ninth to seventeenth aspects, an optical path switching unit for guiding a light beam to the finder optical system (11) or the body-side blur correction unit. The optical path switching unit guides a light beam to at least the finder optical system during a shooting preparation operation (S1600), and guides a light beam to the body-side shake correction unit during a shooting operation (S70).
0) A camera body characterized in that:

According to a nineteenth aspect, the present invention is mounted on a camera body (1) including a body-side shake correcting section (10, 40) and a body-side operating section (100, 400) for operating the body-side shake correcting section. In a possible interchangeable lens (2), a lens-side blur correcting unit (20), a lens-side operating unit (200) for operating the lens-side blur correcting unit, and a lens-side controller (200) for controlling the lens-side operating unit. 24), the lens-side control unit operates the lens-side operation unit (S500) or instructs the camera body to operate the body-side operation unit according to the shooting timing (S1000, S20).
00).

According to a twentieth aspect of the present invention, in the interchangeable lens according to the nineteenth aspect, the lens-side control section activates the lens-side operation section during a photographing preparation operation (S500), and performs the lens operation during a photographing operation. Stop the side operating part (S8
00).

According to a twenty-first aspect of the present invention, in the interchangeable lens according to the nineteenth aspect, the lens-side control section activates the lens-side operation section at the time of a photographing preparation operation (S500), and at the time of the photographing operation, The interchangeable lens is characterized in that an operation of a side operation unit is instructed to the camera body side (S1000, S2000).

According to a twenty-second aspect of the present invention, in the interchangeable lens according to any one of the nineteenth to twentieth aspects, the lens-side blur correction unit changes a light path of a photographing optical system. (20), wherein the lens-side operating unit includes a lens-side driving unit (200) for driving the blur correction optical system.

According to a twenty-third aspect of the present invention, in the interchangeable lens according to the twenty-second aspect, based on the blur detection information, a blur detector (23) for detecting blur and outputting blur detection information (S200). A calculation unit (24) for calculating shake correction information according to a shake correction amount, wherein the lens-side control unit drives the lens-side drive unit based on the shake correction information (S500). This is an interchangeable lens.

According to a twenty-fourth aspect of the present invention, in the interchangeable lens according to the twenty-second aspect, based on the blur detection information output from the camera body side, a calculation unit (where the blur correction information is calculated in accordance with a blur correction amount). 24), wherein the lens-side control section drives the lens-side drive section based on the shake correction information.

[0030]

BEST MODE FOR CARRYING OUT THE INVENTION

[First Embodiment] A first embodiment of the present invention will now be described with reference to the drawings.
The embodiment will be described in more detail. First, a camera system according to a first embodiment of the present invention will be described using a single-lens reflex camera equipped with a blur correction device as an example. FIG. 1 is a sectional view showing a camera system according to the first embodiment of the present invention. FIG. 2 is an enlarged sectional view showing a part of the camera system according to the first embodiment of the present invention.

As shown in FIG. 1, a camera system according to a first embodiment of the present invention includes
A camera body 1 including a drive unit 100, a position detection unit 130, a finder optical system 11 for inverting an image on the screen 11a by a pentaprism, a mirror drive unit 12, an angular velocity sensor 13, a body-side CPU 14, and the like. Removably mounted, blur correction lens 2
0, a lens drive unit 200, a position detection unit 230, an interchangeable lens 2 including an angular velocity sensor 24, a lens-side CPU 24, and the like.

(Camera Body) The CCD 10 is a photoelectric conversion element for converting a subject image transmitted through the photographing optical system into image information. The CCD 10 is arranged behind a quick return mirror 120 provided in the camera body 1 as shown in FIG.
It is attached to 0.

The CCD driving section 100 drives the CCD 10 in a plane perpendicular to the optical axis I (in the xy plane in the figure) by an electromagnetic driving method. CCD drive unit 10
0 denotes two coils 101 mounted on the substrate 110 on the surface opposite to the side on which the CCD 10 is mounted.
And two magnets 102 which are attached to the substrate 120 on the camera body 1 side at a predetermined interval from the coil 101, and are polarized and magnetized to two poles, and four magnets (two of the four (Not shown). When the coil 101 is energized, the CCD driving unit 100 generates a force in the direction of the arrow in the figure based on Fleming's left-hand rule, and drives the CCD 10 in the direction in which the force is generated. Note that the CCD driving unit 100 generates the driving force in the pitch direction (y-axis direction) and generates the driving force in the yaw direction (x-axis direction). Illustration is omitted.

The wire 103 is a kind of link mechanism that movably holds the CCD 10 in a plane perpendicular to the optical axis I. The wires 103 are passed through through holes formed in the substrates 110 and 120, and
0, 120 by soldering. The wire 103 supports the substrate 110 so as to be suspended from the substrate 120.

The position detector 130 detects the position of the CCD 10 in a plane perpendicular to the optical axis I. The position detection unit 130 is attached to the substrate 110 and has a CCD
The infrared light emitting diode (hereinafter referred to as IR
A light beam limiting member 132 attached to the substrate 110 so as to cover the IRED 131 and restricting a light beam from the IRED 131;
1 and a two-dimensional PSD (Position Sensit) attached to the substrate 120 between the two magnets 102 with a certain distance from the light flux limiting member 132.
live Device) 133. The position detection unit 130 controls the PSD 1
The position of the CCD 10 in the pitch direction (y-axis direction) and the yaw direction (x-axis direction) is detected by detecting the position of the light spot of the infrared light that moves on 33. The position detection unit 130
The driving amount information on the driving position of the CCD 10 is
Output to PU14.

The mirror driving section 12 is for retracting the quick return mirror 120 from the photographic light beam during the photographic operation. As shown in FIG. 1, the mirror driving unit 12
The quick return mirror 120 is disposed behind the photographing optical system and distributes the light flux transmitted through the photographing optical system to the finder optical system 11. The mirror driving unit 12 includes, for example, a mechanism that drives a cam and a link by a DC motor to drive the quick return mirror 120, and a mechanism that drives the quick return mirror 120 up by a spring.

The angular velocity sensor 13 is a sensor that monitors a shake occurring in the camera body 1 and outputs angular velocity information (shake detection information) corresponding to the shake. Angular velocity sensor 1
3 is a filter 130 for cutting high-frequency noise components.
Then, the detected blur detection information is output.

The body-side CPU 14 calculates, for example, target drive position information (blurring correction information) of the CCD 10 according to the blurring amount (blurring correction amount), data compression processing of image data stored in the CCD 10, and a release switch. 143
Is a central processing unit that controls the driving or stop of the CCD 10 and the driving control of the mirror driving unit 12 based on the ON operation of. The body-side CPU 14 includes a CCD 10, a mirror driving unit 12, a filter 130, and a position detection unit 13.
0, a shake data memory 140 for storing the shake amount calculated by the body CPU 14 as shake data, an image data memory 141 for writing image data compressed by the body CPU 14, and a PW to be described later.
M (Pulse Width Modulation)
The driver 142 and the release switch 143 are connected. Further, the body side CPU 14 controls the lens contact 3
Can communicate with the lens-side CPU 24 via.

FIG. 3 is a block diagram showing a calculation process of a blur amount by the body CPU in the camera system according to the first embodiment of the present invention. The body side CPU 14
For example, the output signal (angular velocity information) of the filter 130 is converted to a low-frequency component (reference value (omega zero value) ω
0) is extracted. Then, the body-side CPU 14 outputs angular displacement information by subtracting and integrating the low frequency component from the angular velocity information. The body-side CPU 14 obtains the amount of blur by multiplying the angular displacement information by the focal length information output from the lens-side CPU 24, and stores the amount of blur in the blur data memory 140 as blur data. On the other hand, the body-side CPU 14 is a function of the focal length f and the subject distance D, and multiplies the blur amount by a correction coefficient α representing the amount of image movement with respect to the amount of movement of the CCD 10.
The target drive position information of D10 is obtained.

The body-side CPU 14 sets the target drive position to C
In order for the CD 10 to be properly driven, the position detection unit 130
The difference between the driving amount information output from the controller and the target driving position information is calculated. Then, the body side CPU 14
Is output to the PWM driver 142 as a drive command value. P
The WM driver 142 performs Dut according to the drive command value.
At y, a driving voltage is applied to the coil 101 of the CCD driving unit 100 to drive the CCD 10.

The release switch 143 is a switch for starting a series of photographing preparation operations by half-pressing operation and starting a photographing operation such as driving of the mirror driving unit 12 by full-pressing operation.

(Interchangeable Lens) The shake correcting lens 20 is a lens that constitutes a part or the whole of the photographing optical system, and corrects blur by driving in a direction perpendicular to the optical axis I. When the interchangeable lens 2 is mounted on the camera body 1, the vibration reduction lens 20
Located in front of. The outer peripheral portion of the blur correction lens 20 is held by the inner peripheral portion of the lens frame 20a.

The lens driving section 200 drives the blur correction lens 20 in a plane perpendicular to the optical axis I (in the xy plane in the figure) by an electromagnetic driving method. Hereinafter, the structure will be briefly described. Lens drive unit 200
Is a yoke 205 attached to the attachment member 210,
Magnet 2 for forming a magnetic field between the yoke 205
04, a coil 201 disposed between the yoke 205 and the magnet 204 and attached to the lens frame 20a.
And a yoke 202 attached to the surface of the attachment member 220 on the side of the lens frame 20a to fix the magnet 204, and constitute a kind of link mechanism.
(Two of the four wires are not shown) for movably supporting the wire 203. The lens driving unit 200 includes a coil 201, like the CCD driving unit 100.
When a current is supplied, a force is generated in the direction of the arrow in FIG. The lens driving unit 200 generates a driving force in the pitch direction (y-axis direction), and generates a driving force in the yaw direction (x
The driving unit that generates the driving force (axial direction) is a lens driving unit 2
It has the same structure as 00, and illustration is omitted.

The position detecting section 230 detects the position of the shake correcting lens 20 in a plane perpendicular to the optical axis I. The position detecting section 230 has substantially the same structure as the position detecting device 130 mounted on the camera body 1 side. The position detection unit 230 includes an IRED attached to the attachment member 210.
231 and the one-dimensional P attached to the attachment member 220
An SD 233 and a slit member 232 that is disposed between the IRED 231 and the PSD 233 and that is attached to the outer peripheral portion of the lens frame 200 and that restricts a light beam from the IRED 231 are provided. The position detection unit 230 detects the position of the PSD 23 by moving the slit member 232.
3 to detect the position of the light moving on the
Is output to the lens-side CPU 24. Note that the position detection unit 230 detects the position of the blur correction lens 20 in the pitch direction (y-axis direction), and the position detection unit that detects the position of the blur correction lens 20 in the yaw direction (x-axis direction). The structure is the same as that of the unit 230, and illustration is omitted.

The angular velocity sensor 23 is a sensor that monitors a shake occurring in the interchangeable lens 2 and outputs angular velocity information (shake detection information) corresponding to the shake. Angular velocity sensor 23
Is a sensor similar to the angular velocity sensor 13 mounted on the camera body 1 side, and outputs detected blur detection information to a filter 230 that cuts a high-frequency noise component.

The lens side CPU 24 calculates, for example, target drive position information (blurring correction information) of the blur correcting lens 20 according to the blur amount (blurring correction amount),
This is a central processing unit that instructs 0 to drive or stop driving. The lens-side CPU 24 has the filter 230, the PSD 233 of the position detection unit 230, and an EEPR in which various information on the interchangeable lens 2 (hereinafter, referred to as lens information) is written.
An OM 240, for example, a TTL focus detection unit 241 that detects illuminance by subject light that has passed through the photographing optical system and outputs focal length information on a focal length, and, for example, an optical rotary encoder or the like, Focus lens position detector 243 for detecting the position in the direction of the optical axis I and outputting subject distance information relating to the distance to the subject, a PWM driver 242, and a half-pressing function of a release switch 143 provided on the camera body 1 side And a shake correction start switch 244 for starting the shake correction system by an ON operation.

The lens side CPU 24 is the body side CPU 1
The amount of shake is calculated by the same process as the process of calculating the amount of shake by No. 4. Hereinafter, the process of calculating the blur amount by the lens-side CPU 24 will be briefly described. Lens side CPU 24
Calculates target drive position information on the target drive position of the blur correction lens 20 based on the focal length information, the subject distance information, and the lens information. The lens-side CPU 24 calculates the difference between the drive amount information output from the position detector 230 and the target drive position information so that the blur correction lens 20 is appropriately driven to the target drive position. And the lens side C
The PU 24 outputs the corrected target drive position information as a drive command value to the PWM driver 242 so that the blur correction lens 20 is driven to the target drive position. The PWM driver 242 applies a drive voltage to the coil 201 of the lens drive unit 200 at a duty according to the drive command value, and drives the blur correction lens 20. Also, the lens side CPU 2
Reference numeral 4 instructs the lens driving unit 200 to drive or stop driving based on the ON operation or the OFF operation of the shake correction start switch 244.

Next, the operation of the camera system according to the first embodiment of the present invention will be described. FIG. 4 is a flowchart illustrating the operation of the camera system according to the first embodiment of the present invention. In step (hereinafter, referred to as S) 100, release switch 143 performs a half-press operation. This flowchart starts when the release switch 143 is half-pressed. The body-side CPU 14 turns on a half-press timer (not shown) simultaneously with the half-press operation of the release switch 143. It should be noted that the flowchart shown in FIG. 4 is for when blur correction is performed, and when blur correction is not performed, a normal camera operation is performed.

In S200, the angular velocity sensors 13, 2
3 turns ON. The power supply unit (not shown)
Power is supplied to both of the angular velocity sensors 13 and 23 in synchronization with the N operation, and the angular velocity sensors 13 and 23 are turned on (power ON). Since the angular velocity sensors 13 and 23 have an unstable period at the time of rising, the O.D.
N operations are performed. The angular velocity sensors 13 and 23 detect vibrations generated in the camera body 1 and the interchangeable lens 2, respectively, and provide the filter 1 to the body-side CPU 14 and the lens-side CPU 24.
The detected blur detection information is output via the output terminals 30 and 230.

In S300, the blur correction lens 20 is unlocked. The lens CPU 20 instructs a lock mechanism (not shown) to release the lock of the blur correction lens 20, and the lock mechanism releases the lock of the blur correction lens 20.

In S400, distance measurement and photometry are performed. The focus detection unit 241 detects illuminance due to subject light that has passed through the imaging optical system, and outputs focal length information to the lens-side CPU 24. Thereafter, the focusing lens is driven in the direction of the optical axis I by AF driving, and the position detection unit 243 detects the position of the focusing lens and outputs subject distance information to the lens-side CPU 24.

In S500, the drive of the blur correction lens 20 is controlled. The lens-side CPU 24 calculates the amount of blur based on the blur detection information, subject distance information, focal length information, and lens information output from the angular velocity sensor 23. The lens-side CPU 24 controls the drive of the shake correction lens 20 based on the target drive position information corresponding to the shake amount.

In S600, the body side CPU 14
Determines whether the release switch 143 is fully pressed. When the release switch 143 is fully pressed, the process proceeds to S700, and the release switch 1 is pressed.
When the button 43 is not fully pressed, the process returns to S400, and the distance measurement and the photometry are repeatedly performed.

In S700, the quick return mirror 120 moves up. The body-side CPU 14 instructs the mirror driving unit 12 to raise the mirror, and the quick return mirror 120 retreats from the imaging optical path to a dotted line position shown in FIG.

In S800, the blur correction lens 20 is locked. The body-side CPU 14 outputs a blur correction stop command to the lens-side CPU 24 via the lens contact 3. The lens-side CPU 24 instructs the lens driving unit 200 to stop driving the blur correction lens based on the command to stop the blur correction, and instructs the lock mechanism to lock the blur correction lens 20.

In step S900, aperture driving is started. The drive of a not-shown aperture mechanism is controlled.

In S1000, the CCD 10 starts blur correction. The body-side CPU 14 calculates the amount of blur based on focus detection information and subject distance information output from the interchangeable lens 2 via the lens contact 3 and blur detection information output from the angular velocity sensor 13. The body-side CPU 14 controls the driving of the CCD 10 based on the target driving position information corresponding to the blur amount.

At S1100, image data is fetched. The CCD 10 accumulates electric charges and performs photographing. The body-side CPU 14 performs a data compression process on the image data stored in the CCD 10 and writes the compressed data into the image data memory 141.

In S1200, the CCD 10 stops blur correction. The body side CPU 14 includes the CCD driving unit 1
00 is instructed to stop driving, and the blur correction control is stopped.

In S1300, the aperture opening drive is started. The drive of an aperture mechanism (not shown) is controlled, and the aperture is opened.

In S1400, the blur correction lens 20
Is unlocked. The body-side CPU 14 issues a blur correction start command via the lens contact 3 to the lens-side CPU.
24. The lens-side CPU 24 instructs a lock mechanism (not shown) to unlock the shake correction lens 20 based on the shake correction start command, and the lock mechanism releases the lock of the shake correction lens 20.

In step S1500, the blur correction lens 20
Is drive-controlled. The lens-side CPU 24 detects the blur detection information, the subject distance information output from the angular velocity sensor 23,
The shake amount is calculated based on the focal length information and the lens information. The lens-side CPU 24 controls the drive of the shake correction lens 20 based on the target drive position information corresponding to the shake amount.

In S1600, the quick return mirror 120 goes down. The body-side CPU 14 instructs the mirror driving unit 12 to lower the mirror, and the quick return mirror 120 is driven from the dotted line position shown in FIG.

In S1700, the body side CPU 14
Determines whether the half-press timer is operating OFF. If the half-pressing timer is OFF (time-up), the process proceeds to S1800. Half-press timer is off
When not operating, the body-side CPU 14 repeatedly determines until the half-press timer is turned off.

In S1800, the blur correction lens 20
Stops driving. The body-side CPU 14 issues a blur correction stop command via the lens contact 3 to the lens-side CPU 24.
Output to The lens-side CPU 24 instructs the lens driving unit 200 to stop driving the blur correction lens based on the blur correction stop command, and stops the blur correction control.

In S1900, the blur correction lens 20
Is locked. The lens-side CPU 24 instructs the lock mechanism to start locking the blur correction lens 20. Also,
The power supply unit stops supplying power to the angular velocity sensors 13 and 23, and the angular velocity sensors 13 and 23 are turned off.

The camera system according to the first embodiment of the present invention has a camera shake correction device on each of the camera body 1 side and the interchangeable lens 2 side. When the release switch 143 is in a half-pressed state (a photographing preparation state), the quick return mirror 120 guides the light flux not to the photographing optical system but to the finder optical system 11. For this reason, the light transmitted through the shake correction lens 20 is transmitted to the quick return mirror 1
The light is reflected by 20 and forms an image on the screen 11a. In this case, the photographer confirms the image on the screen 11 a by the finder optical system 11. In a shooting preparation state in which shooting is not performed, even if the shake correction device on the camera body 1 drives the CCD 10, the image on the finder does not change and the effect of the shake correction does not appear. For this reason, in the shooting preparation state, the body-side CPU 14 instructs the CCD driving unit 100 on the camera body 1 to stop driving, and the lens-side CPU 24 transmits the lens driving unit 200 on the interchangeable lens 2 side.
, And the blur correction lens 20 corrects the blur.

On the other hand, when the release switch 143 is in the fully-pressed state (photographing state), the effect of blur correction is obtained by using one or both of the camera body 1 and the interchangeable lens 2. be able to. However, if the shake correction devices on the camera body 1 side and the interchangeable lens 2 side are driven at the same time, the shake correction is performed twice, and the effect of the shake correction may be lost. In addition, in the shooting state, power consumption increases due to driving of the quick return mirror 120, aperture driving, AF driving, and the like. Generally, the shake correction lens 20
On the other hand, since the CCD 10 is lighter, the driving energy required for driving the CCD 10 is less. For this reason, in the camera system according to the first embodiment of the present invention, the camera shake is corrected by the CCD 10 which is superior in power consumption as compared with the camera shake correction lens 20. As described above, the camera system according to the first embodiment of the present invention can reduce power consumption because one of the CCD driving unit 10 and the lens driving unit 200 is driven according to the shooting timing. it can.

[Second Embodiment] FIG. 5 is a sectional view showing a camera system according to a second embodiment of the present invention. In the following description, the same members as those shown in FIG. 1 will be denoted by the same reference numerals and will not be described in detail. In the camera system according to the second embodiment of the present invention, as shown in FIG. 5, a CCD 10 is attached to the camera body 1 via a substrate 110, as in the camera system according to the first embodiment of the present invention. CC
No D drive unit 100 is provided.

(Camera Body) The body-side CPU 14
For example, based on the data compression processing of the image data stored in the CCD 10, the restoration of the original image without blur, and the ON operation of the release switch 143 based on the image data and the blur data when the image data is output. On the basis of,
A central processing unit for instructing driving or stopping driving of the CCD 10.

(Interchangeable Lens) The lens-side CPU 24 calculates, for example, target drive position information (blur correction information) of the blur correction lens 20, controls driving or stop of the blur correction lens 20, and detects a focus. A central processing unit that calculates a photographing magnification based on the focus detection information output from the focusing lens position detection unit 241 and the subject distance information output from the focusing lens position detection unit 243.

FIG. 6 is a block diagram showing a process of calculating a blur amount by a lens-side CPU in a camera system according to a second embodiment of the present invention. Note that the lens-side CPU 24 in the camera system according to the second embodiment of the present invention
Calculates the blur amount by a calculation process substantially similar to that of the body-side CPU 14 in the camera system according to the first embodiment of the present invention.

The lens side CPU 24 converts the low frequency component extracted from the output signal (angular velocity information) of the filter 230 into
The angular displacement information is subtracted and integrated to output angular displacement information. The lens-side CPU 24 multiplies the angular displacement information by the focal length information to obtain a blur amount. Lens side CPU 24
Outputs the shake amount as shake data to the body-side CPU 14 via the lens contact 3,
Stores the shake data in the shake data memory 140. On the other hand, the lens side CPU 24 multiplies the blur amount by the correction coefficient α to obtain target drive position information of the blur correction lens 20.

The lens side CPU 24 includes a position detecting section 230
Then, the difference between the drive amount information output from and the target drive position information is calculated, and the target drive position information corrected so as to fall within the drive range of the blur correction lens 20 is output to the PWM driver 142 as a drive command value. The PWM driver 142 uses the Duty corresponding to the drive command value to output the lens driver 20
A drive voltage is applied to the zero coil 201 to drive the blur correction lens 20.

Next, the operation of the camera system according to the second embodiment of the present invention will be described. FIG. 7 is a flowchart illustrating an operation of the camera system according to the second embodiment of the present invention. In the following description, the same steps as those shown in FIG. 4 will be denoted by the same reference numerals, and a detailed description of the operations in those steps will be omitted.

In S550, the body side CPU 14
Determines whether the half-press timer is operating OFF. When the half-pressing timer is OFF (time-up), the process proceeds to S1800, where the blur correction lens 20 stops driving. In S1900, the lock mechanism locks the blur correction lens, and the angular velocity sensors 13 and 23 are turned off.
Operate. On the other hand, when the half-press timer is not OFF, the process proceeds to S600, and it is determined whether or not the release switch 143 is fully pressed. In step S800, the locking mechanism locks the shake correction lens 20, but the lens-side CPU 24 continues to calculate the amount of shake based on the angular velocity information of the angular velocity sensor 23, and
Output to U14.

At S1150, shake data is captured. The body-side CPU 14 writes shake data into the shake data memory 140 when the CCD 10 outputs image data (at the time of shooting).

At S2000, the image data restoration unit restores the image. The body-side CPU 14 restores an image based on the image data stored in the image data memory 141 and the blur data stored in the blur data memory 140. Since such an image data restoration method is disclosed in Japanese Patent Application Laid-Open No. 6-118468, the method will be briefly described below. Body side C
The PU 14 stores the recorded value of the blur data stored in the blur data memory 140 at each sampling time (for example, 1 m
(every second). Then, the body side CPU 14
Calculates the trajectory of the blur based on the recorded value, and calculates the blur correction function from the trajectory of the blur. Since the peripheral portion of the image data includes data obtained in the middle of the blur and data lost in the middle of the blur, the body-side CPU 14 cannot perform image restoration properly. For this purpose, the body side CPU
14 reads the image data stored in the image data memory 141, and cuts the periphery of the image data from the trajectory of the blur by the maximum value of the blur amount. And the body side CPU
Reference numeral 14 performs an operation for correcting image data using a blur correction function.

At S2100, the restored image data is recorded. The body-side CPU 14 overwrites the image data after restoration on the image data before restoration stored in the image data memory 141. After recording the restored image data, the process returns to S400.

FIG. 8 is a flow chart for explaining the operation of the camera system according to the second embodiment of the present invention for determining whether or not to perform blur correction in accordance with the photographing magnification. S450
In, the lens-side CPU 24 calculates the photographing magnification.
In S400, after the distance measurement, the photometry, and the AF drive are performed, the lens-side CPU 24 calculates the photographing magnification β based on the subject distance information and the focal length information.

In S710, it is determined whether or not the photographing magnification β is larger than 0.2. When the photographing magnification β is 0.2 or more, the effect of parallel blur is large.
U24 makes a decision. For this purpose, the lens side CPU 24
Instructs the lock mechanism to lock the shake correction lens 20 in S800, and the body-side CPU 14
At 00, blurring is corrected by image restoration. On the other hand, when the photographing magnification β is smaller than 0.2, the lens-side CPU 24 continues the drive control of the blur correction lens 20, and the body-side CPU 14 controls the drive of the aperture mechanism (not shown) in S720. Then, in S730, the image data memory 140 captures the image data, and the body-side CPU 14 controls the drive to open the aperture in S740, and in S750, the mirror driving unit 12
To mirror down.

The camera system according to the second embodiment of the present invention has a shake correction device only on the interchangeable lens 2 side. When the release switch 143 is in a half-pressed state (a shooting preparation state), the light that has passed through the shake correction lens 20 is reflected by the quick return mirror 120,
An image is formed on the screen 11a. For this reason, the photographer can check the image on the screen 11 a by the finder optical system 11. In this case, the lens side CP
U24 instructs the lens drive unit 200 to drive, and the blur correction lens 20 corrects the blur, so that the photographer can capture an image without blur.

On the other hand, when the release switch 143 is fully pressed (photographing state), the quick return mirror 120 is jumping up, and the subject image is
Image on 0. To do this, the photographer
The image on 1a cannot be confirmed by the finder optical system 11. The lens-side CPU 24 includes a lens driving unit 20.
0 is instructed to stop driving, and the body-side CPU 14 corrects the blur of the subject image based on the image data written in the image data memory 141 and the blur data stored in the blur data memory 140. As described above, in the camera system according to the second embodiment of the present invention, the lens driving unit 200 is driven according to the shooting timing,
In order to reduce the power consumption by operating one of them to restore the image data.

In the camera system according to the second embodiment of the present invention, the lens-side CPU 24 includes a photographing-magnification calculating unit for calculating the photographing magnification β.
When the photographing magnification β is equal to or more than the predetermined value, the body-side CPU 14 as the second operation unit is operated. When the photographing magnification β is smaller than the predetermined value, the lens-side CPU 24 activates the lens driving unit 200 as the first operation unit. For this reason, when the photographing magnification β is equal to or larger than the predetermined value, the body-side CPU 14 restores the image data to an image without blur, and the lens-side CPU 24
To stop driving. As a result, when the effect of the blur correction is small, the driving of the blur correction lens 20 is stopped, and the power consumption can be reduced. On the other hand, when the photographing magnification β is smaller than the predetermined value, the lens side CPU 24 controls the driving of the lens driving unit 200, and when the effect of the blur correction is small, the driving of the blur correction lens 20 is stopped to reduce the power consumption. be able to.

[Third Embodiment] FIG. 9 is a sectional view showing a camera system according to a third embodiment of the present invention. As shown in FIG. 9, the camera system according to the third embodiment of the present invention includes a CCD
10 is attached. The camera system according to the third embodiment of the present invention includes a quick return mirror 120
A blur correction device including a blur correction lens 40, a lens driving unit 400, and a position detection unit 430 is mounted between the camera and the CCD 10. Note that these shake correction lenses 40,
The lens driving unit 400 and the position detecting unit 430 have the same structure as that mounted on the interchangeable lens 2 side.

In the camera system according to the third embodiment of the present invention, when in a shooting preparation state, the lens driving unit 300 on the camera body 1 stops driving and the lens driving unit 200 on the interchangeable lens 1 drives. . On the other hand, in the shooting state, the lens driving unit 300 on the camera body 1 is driven, and the lens driving unit 200 on the interchangeable lens 1 stops driving. For this reason, in order to select the lens driving unit 200 or the lens driving unit 300 according to the photographing timing, it is possible to reduce the power required for driving these.

[Fourth Embodiment] FIG. 10 shows a fourth embodiment of the present invention.
It is a sectional view showing an aspect of a camera system concerning an embodiment. The camera system shown in FIG.
The body-side CPU 14 and the lens driving unit 200 are connected without omitting the PU 24 or via the lens-side CPU 24. The body-side CPU 14 controls the driving of the CCD driving unit 100 based on the angular velocity information output from the angular velocity sensor 13. When the camera body 1 does not include the CCD drive unit 100, the image data restoration unit restores an image without blur based on the angular velocity information output by the angular velocity sensor 13 and the image data output by the CCD 10. .

In the camera system shown in FIG. 10B, the CCD drive unit 100 and the angular velocity sensor 13 are connected to the lens side CPU 24 without the body side CPU 14 or through the body side CPU 14. Camera body 1 is CC
When the D drive unit 100 is not provided, the image data restoration unit provided in the lens side CPU 24 restores an image without blur based on the angular velocity information output by the angular velocity sensor 13 and the image data output by the CCD 10. I do.

In the camera system shown in FIG. 10C, the body CPU 14 and the lens driving unit 200 are connected without the lens CPU 24 or without the lens CPU 24. If the camera body 1 does not include the CCD drive unit 100, the image data restoration unit restores an image without blur based on the angular velocity information output by the angular velocity sensor 23 and the image data output by the CCD 10.

In the camera system shown in FIG. 10D, the lens-side CPU 24 and the CCD drive unit 100 are connected without omitting the body-side CPU 14 or interposing the body-side CPU 14. When the camera body 1 does not include the CCD driving unit 100, the image data restoration unit provided in the lens-side CPU 24 performs blurring based on the angular velocity information output by the angular velocity sensor 23 and the image data output by the CCD 10. Repair to no picture. In the camera system shown in FIG. 10D, the CCD drive unit 100 on the camera body 1 side can be controlled by the lens-side CPU 24. In addition, a digital still camera which can be equipped with a conventional interchangeable lens for a silver halide camera and does not have a CCD drive unit or an angular velocity sensor also has a lens side CPU 2.
4, the CCD on the camera body side can be controlled.

[Other Embodiments] The present invention is not limited to the embodiments described above, and various modifications and changes are possible, and these are also within the equivalent scope of the present invention. For example, in the camera system according to the first embodiment of the present invention, the half-press timer is turned on simultaneously with the half-press operation of the release switch 143.
The half-press timer may be turned on simultaneously with the turning-on operation. The blur correction lens 20 may be mechanically locked by a lock mechanism, but is driven by the lens drive unit 200 such that the optical axis I of the entire photographing optical system and the center of the blur correction lens 20 coincide. , May be held at that position. In the camera system according to the first embodiment of the present invention, the image data is restored by the image data restoration unit after the mirror is lowered, but the present invention is not limited to this. After the image data and blur data are aligned,
Image data can be restored at any time. Also, C
The CD driving unit 100 uses the output signal of the angular velocity sensor 13, and the lens driving unit 200 uses the output signal of the angular velocity sensor 23.
Shake correction can also be performed based on the output signals of 3, 23. In the camera system according to the first embodiment of the present invention, the CCD driving unit 100
10 is driven, but the blur correction lens 20 is
When lighter than 0, the blur correction lens 20 may be driven.

The camera system according to the second embodiment of the present invention exemplifies the image restoration method described in JP-A-6-118468 as an example. However, other methods may be used. Further, the photographing magnification β is set to 0.2 as a judgment value.
It is not limited to 0.2.

[0093]

As described in detail above, according to the first aspect of the present invention, the control unit controls the first unit according to the photographing timing.
Since the first operating unit that operates the shake correcting unit or the second operating unit that operates the second shake correcting unit is operated, it is possible to prevent the first and second operating units from operating at the same time and to reduce consumption. The power can be reduced.

According to the second aspect of the present invention, the control unit includes:
At the time of the shooting preparation operation, the first operating unit is operated, and at the time of the shooting operation, the second operating unit is operated. Therefore, the first or second blur correction unit is operated according to the shooting preparation operation or the shooting operation. As a result, power consumption can be reduced.

According to the third aspect of the present invention, the first shake correcting section includes the shake correcting optical system for changing the optical path of the photographing optical system, and the second shake correcting section converts the subject image into image information. An image information conversion unit for conversion is provided, and the first operation unit includes:
The image forming apparatus includes a first driving unit that drives the blur correction optical system, and the second operating unit includes a second driving unit that drives the image information conversion unit. According to the fourth aspect of the present invention, the first shake correction unit includes the first shake correction optical system that changes the optical path of the imaging optical system, and the second shake correction unit includes the first shake correction optical system. A second blur correction optical system that changes an optical path, the first operating unit includes a first drive unit that drives the first blur correction optical system, and the second operating unit includes a second shake correction optical system. A second drive unit for driving the blur correction optical system. Therefore, it is possible to prevent the first and second drive units from being driven simultaneously, and to reduce power consumption.

According to the fifth aspect of the present invention, the arithmetic unit comprises:
Based on the shake detection information output by the shake detection unit, shake correction information corresponding to the shake correction amount is calculated, and the control unit drives the first and second driving units based on the shake correction information. The camera shake can be corrected by the camera shake correction optical system or the image information conversion unit, and the camera shake can be corrected by the first or second camera shake correction optical system.

According to the sixth aspect of the present invention, the first shake correcting section includes the shake correcting optical system for changing the optical path of the photographing optical system, and the second shake correcting section converts the subject image into image information. An image information conversion unit for conversion is provided, and the first operation unit includes:
The image forming apparatus further includes a drive unit for driving the shake correction optical system, and the second operating unit includes an image restoration unit for restoring the subject image to an image without blurring, so that the drive unit and the image restoration unit operate simultaneously. Prevention, and power consumption can be reduced.

According to the seventh aspect of the present invention, the arithmetic unit comprises:
Based on the shake detection information output by the shake detection unit, shake correction information corresponding to the amount of shake correction is calculated, and the control unit drives the drive unit based on the shake correction information, and calculates the shake correction information and the image information. , The subject image is restored to a blur-free image by the image restoration unit, so that the shake can be corrected by the shake correction optical system or the image restoration unit.

According to the eighth aspect of the present invention, the optical path switching unit guides the light beam to the finder optical system or the second blur correction unit, and the optical path switching unit transmits the light beam to at least the finder optical system during the photographing preparation operation. During the shooting operation, the luminous flux is guided to the second blur correction unit. Therefore, during the shooting preparation operation, a blur-free image can be confirmed by the finder optical system. Shake can be corrected.

According to the ninth aspect of the present invention, a camera body that can be mounted on an interchangeable lens including a lens-side operation unit controls a body-side operation unit that operates a body-side shake correction unit and controls the body-side operation unit. The body-side control unit operates the body-side operation unit or instructs the interchangeable lens to operate the lens-side operation unit according to the shooting timing. It is possible to prevent the side operating portions from operating at the same time, and to reduce power consumption.

According to the tenth aspect of the present invention, the control unit instructs the interchangeable lens to operate the lens-side operation unit during the photographing preparation operation, and activates the body-side operation unit during the photographing operation. The lens-side operation unit or the body-side operation unit is operated according to the preparation operation or the photographing operation, so that power consumption can be reduced.

According to the eleventh aspect of the present invention, the body-side shake correcting section includes an image information converting section for converting a subject image into image information, and the body-side operating section includes a body for driving the image information converting section. Since the side drive unit is provided, the image information conversion unit can be driven by the body side drive unit to correct blur.

According to the twelfth aspect of the present invention, the body-side shake correcting section includes a shake correcting optical system for changing an optical path of the photographing optical system, and the body-side operating section includes a body for driving the shake correcting optical system. Since the side drive unit is provided, the shake correction optical system can be driven by the body side drive unit to correct blur.

According to the thirteenth aspect of the present invention, the calculating section calculates shake correction information corresponding to the shake correction amount based on the shake detection information output from the shake detecting section, and the body-side control section performs the calculation. The body-side drive unit is driven based on the shake correction information. According to the fourteenth aspect of the present invention, the calculation unit calculates the shake correction information according to the shake correction amount based on the shake detection information output from the interchangeable lens, and the body-side control unit Based on the blur correction information,
The body-side drive unit is being driven. Therefore, blur can be corrected by the image information conversion unit or the blur correction optical system.

According to the fifteenth aspect of the present invention, the body-side blur correction unit includes an image information conversion unit that converts a subject image into image information, and the body-side operating unit restores the subject image to a blur-free image. Since the image restoration unit is provided, the image restoration unit can correct blur.

According to the sixteenth aspect of the present invention, the calculating section calculates shake correction information corresponding to the shake correction amount based on the shake detection information output from the shake detecting section, and the body-side control section calculates the shake correction information. Based on the blur correction information and the image information, the image restoration unit restores the subject image to an image without blur. According to the seventeenth aspect of the present invention, the calculation unit calculates shake correction information according to the shake correction amount based on the shake detection information output from the interchangeable lens side, and the body-side control unit Based on the blur correction information and the image information, the image restoration unit restores the subject image to an image without blur. Therefore, the subject image can be corrected to an image without blur by the image restoration unit.

According to the eighteenth aspect of the present invention, the optical path switching unit guides the light beam to the finder optical system or the body side blur correction unit, and this optical path switching unit transmits the light beam to at least the finder optical system during a photographing preparation operation. During the shooting operation, the luminous flux is guided to the body-side image stabilization unit, so that during the shooting preparation operation, an image without blur can be confirmed by the viewfinder optical system. Can be corrected.

According to the nineteenth aspect of the present invention, the interchangeable lens that can be mounted on the camera body including the body-side operating section for operating the body-side blur correcting section includes a lens-side operating section that operates the lens-side blur correcting section. And a lens-side control unit that controls the lens-side operation unit. The lens-side control unit operates the lens-side operation unit or instructs the camera body to operate the body-side operation unit according to the shooting timing. Therefore, it is possible to prevent the lens-side operation unit and the body-side operation unit from operating at the same time, and to reduce power consumption.

According to the twentieth aspect of the present invention, the lens-side control unit activates the lens-side operation unit during the photographing preparation operation, and instructs the camera body to operate the body-side operation unit during the photographing operation. The power consumption can be reduced by operating the lens-side operating unit or the body-side operating unit according to the shooting preparation operation or the shooting operation.

According to the twenty-first aspect of the present invention, the lens-side control unit activates the lens-side operation unit during the photographing preparation operation, and stops the lens-side operation unit during the photographing operation. The lens-side operating unit is operated according to the time of the photographing operation, thereby reducing power consumption.

According to the twenty-second aspect of the present invention, the lens-side blur correcting section includes a blur correcting optical system for changing the optical path of the photographing optical system, and the lens-side operating section drives the lens for driving the blur correcting optical system. Since the side drive unit is provided, the blur correction optical system can be driven by the lens side drive unit to correct blur.

According to the twenty-third aspect of the present invention, the computing section computes blur correction information according to the blur correction amount based on the blur detection information output by the blur detecting section, and the lens-side control section The lens driving unit is driven based on the shake correction information. The calculating unit calculates blur correction information according to the blur correction amount based on the blur detection information output from the camera body, and the lens-side control unit calculates the lens-side drive based on the blur correction information. Driving the unit. Therefore, the subject image can be corrected to an image without blur by the image restoration unit.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a camera system according to a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view showing a part of the camera system according to the first embodiment of the present invention.

FIG. 3 is a block diagram illustrating a process of calculating a shake amount by a body-side CPU in the camera system according to the first embodiment of the present invention.

FIG. 4 is a flowchart illustrating an operation of the camera system according to the first embodiment of the present invention.

FIG. 5 is a sectional view showing a camera system according to a second embodiment of the present invention.

FIG. 6 is a block diagram showing a process of calculating a blur amount by a lens-side CPU in a camera system according to a second embodiment of the present invention.

FIG. 7 is a flowchart illustrating an operation of the camera system according to the second embodiment of the present invention.

FIG. 8 is a flowchart illustrating an operation of whether or not to perform blur correction according to a shooting magnification in a camera system according to a second embodiment of the present invention.

FIG. 9 is a sectional view showing a camera system according to a third embodiment of the present invention.

FIG. 10 is a sectional view showing an aspect of a camera system according to a fourth embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 camera body 2 interchangeable lens 10 CCD 11 finder optical system 13, 23 angular velocity sensor 14 body side CPU 20, 40 blur correction lens 24 lens side CPU 100 CCD drive unit 200, 400 lens drive unit 130, 230, 430 position detection unit 120 Quick return mirror

Claims (24)

[Claims] A first operating unit that operates the first and second shake correcting units; a second operating unit that operates the second shake correcting unit; A control unit that controls the first and second operating units, wherein the control unit operates the first or second operating unit in accordance with a shooting timing. system. 2. The camera system according to claim 1, wherein the control unit operates the first operating unit during a shooting preparation operation, and operates the second operating unit during a shooting operation. Camera system characterized by the above-mentioned. 3. The camera system according to claim 1, wherein the first shake correction unit includes a shake correction optical system that changes an optical path of a photographing optical system, and the second shake correction unit. Includes an image information conversion unit that converts a subject image into image information, the first operating unit includes a first driving unit that drives the blur correction optical system, and the second operating unit includes: A camera system, comprising: a second driving unit that drives the image information conversion unit. 4. The camera system according to claim 1, wherein the first shake correction unit includes a first shake correction optical system that changes an optical path of a photographing optical system, and The blur correction unit includes a second blur correction optical system that changes an optical path of a shooting optical system, the first operating unit includes a first drive unit that drives the first blur correction optical system, The camera system according to claim 1, wherein the second operating unit includes a second driving unit that drives the second blur correction optical system. 5. The camera system according to claim 3, wherein a shake detection unit that detects shake and outputs shake detection information, and a shake corresponding to a shake correction amount based on the shake detection information. A control unit for calculating correction information, wherein the control unit is configured to control the first control based on the shake correction information.
And driving the second drive unit. 6. The camera system according to claim 1, wherein the first shake correction unit includes a shake correction optical system that changes an optical path of a photographing optical system, and the second shake correction unit. Includes an image information conversion unit that converts a subject image into image information, the first operating unit includes a driving unit that drives the shake correction optical system, and the second operating unit includes a drive unit that blurs the subject image. A camera system, comprising: an image restoration unit for restoring an image without images. 7. The camera system according to claim 6, wherein a blur detecting unit that detects blur and outputs blur detection information, and calculates blur correction information according to a blur correction amount based on the blur detection information. The control unit drives the driving unit based on the blur correction information, and the image restoration unit does not blur the subject image based on the blur correction information and the image information. A camera system, characterized in that the image is restored. 8. One of claims 1 to 7
The camera system according to claim, further comprising: an optical path switching unit that guides a light beam to a finder optical system or the second blur correction unit. A camera system for guiding a light beam to the second blur correction unit during a shooting operation. 9. A camera body mountable on an interchangeable lens including: a lens-side shake correction unit; and a lens-side operation unit that operates the lens-side shake correction unit. A body-side operation unit that operates a correction unit; and a body-side control unit that controls the body-side operation unit, wherein the body-side control unit operates the body-side operation unit or A camera body for instructing the interchangeable lens side to operate a lens side operation unit. 10. The camera body according to claim 9, wherein the control unit instructs the interchangeable lens to operate the lens-side operation unit during a shooting preparation operation, and the body-side operation unit during a shooting operation. Actuating a camera body. 11. The camera body according to claim 9, wherein the body-side shake correction unit includes an image information conversion unit that converts a subject image into image information, and the body-side operation unit includes: A camera body, comprising: a body-side drive unit that drives an image information conversion unit. 12. The camera body according to claim 9, wherein the body-side shake correction unit includes a shake correction optical system that changes an optical path of a photographing optical system, and the body-side operation unit includes: A camera body, comprising: a body-side drive unit that drives a shake correction optical system. 13. A camera body according to claim 11, wherein a shake detecting section for detecting shake and outputting shake detection information, and a shake corresponding to a shake correction amount based on the shake detection information. A calculation unit for calculating correction information, wherein the body-side control unit, based on the shake correction information,
Driving the body-side drive unit. 14. The camera body according to claim 11, further comprising: a calculation unit configured to calculate shake correction information according to a shake correction amount based on shake detection information output from the interchangeable lens side. The body-side control unit, based on the blur correction information,
Driving the body-side drive unit. 15. The camera body according to claim 9, wherein the body-side shake correction unit includes an image information conversion unit that converts a subject image into image information, and the body-side operation unit includes a subject. A camera body, comprising: an image restoration unit that restores an image to a blur-free image. 16. The camera body according to claim 15, wherein a blur detecting unit that detects blur and outputs blur detection information, and calculates blur correction information according to a blur correction amount based on the blur detection information. A camera unit, wherein the body-side control unit causes the image restoration unit to restore the subject image to a blur-free image based on the shake correction information and the image information. 17. The camera body according to claim 15, further comprising: a calculating unit configured to calculate blur correction information according to a blur correction amount based on blur detection information output from the interchangeable lens side, The camera body, wherein the control unit causes the image restoration unit to restore the subject image to a blur-free image based on the shake correction information and the image information. 18. The camera body according to claim 9, further comprising: an optical path switching unit that guides a light beam to a finder optical system or the body-side shake correction unit. A camera body that guides a light beam to at least the finder optical system during a shooting preparation operation, and guides a light beam to the body-side shake correction unit during a shooting operation. 19. An interchangeable lens attachable to a camera body, comprising: a body-side shake correction unit; and a body-side operation unit that operates the body-side shake correction unit. A lens-side operation unit that operates a correction unit; and a lens-side control unit that controls the lens-side operation unit, wherein the lens-side control unit operates the lens-side operation unit or Instructing the camera body side to operate a body side operation unit. 20. The interchangeable lens according to claim 19, wherein the lens-side control unit activates the lens-side operation unit during a shooting preparation operation, and stops the lens-side operation unit during a shooting operation. An interchangeable lens characterized by the following. 21. The interchangeable lens according to claim 19, wherein the lens-side control unit activates the lens-side operation unit during a photographing preparation operation, and operates the body-side operation unit during a photographing operation. An interchangeable lens, characterized by instructing the body side. 22. The interchangeable lens according to claim 19, wherein the lens-side shake correction unit includes a shake correction optical system that changes an optical path of a photographing optical system, and The interchangeable lens, characterized in that the side operation unit includes a lens side drive unit that drives the shake correction optical system. 23. The interchangeable lens according to claim 22, wherein a shake detection unit that detects shake and outputs shake detection information, and calculates shake correction information according to a shake correction amount based on the shake detection information. The lens-side control unit, based on the blur correction information,
An interchangeable lens, characterized by driving the lens-side drive unit. 24. The interchangeable lens according to claim 22, further comprising: a calculation unit configured to calculate shake correction information according to a shake correction amount based on shake detection information output from the camera body. The control unit, based on the blur correction information,
An interchangeable lens, characterized by driving the lens-side drive unit.