JPH10142646A - Camera shake preventing device for camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the mobility and reduce the size by providing a second vibration preventing means separate from a camera body which receives the camera shake signal from a camera shake detecting means and drives the camera body so as to cancel the shaking added to the camera body. SOLUTION: A camera shake preventing grip 200 is installed to a camera 101, a movement signal input contact is provided on the long edge part upper surface side of the mounting state 212 of the camera shake preventing grip 200, and the camera shake signal input contact makes contact with the camera shake signal output contact on the camera 101 side in the state where the camera 101 is connected to the camera shake preventing grip 200. Therefore, two- directional camera shake angle speeds (camera shake signals) detected by first and second angle speed detecting means on the camera 101 side are transmitted to the camera shake preventing grip 200 side. While a vibration isolating button 218 on the facing surface of the camera shake preventing grip 200 is in ON state, vibration isolating operation to the camera 101 is executed. Namely, the camera body is driven so as to cancel the shaking added to the camera body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for preventing camera shake, and more particularly to an apparatus for preventing camera shake caused by camera shake or the like that occurs when an image is taken by a camera.

[0002]

2. Description of the Related Art Conventionally, a photographing apparatus (hereinafter, referred to as a camera or the like) prevents a camera shake or the like that occurs when photographing a still image, a moving image, and the like, thereby improving a photographing result. Various proposals have been made.

For example, a vibration generated in a lens barrel having a photographing optical system, such as a camera, is detected by a detection sensor or the like, and the lens barrel is driven so that the detected value becomes zero. Japanese Patent Application Laid-Open No. Sho 61-150580 discloses a structure in which vibrations generated in the lens barrel are positively canceled.
JP, JP-A-61-248681, etc.
Various proposals have been made.

The photographing apparatus disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 61-150580 discloses a vibration damping device that performs vibration damping against rotation in the left-right direction (the yawing direction) when viewed from the upper side of the lens barrel. A drive control mechanism that is arranged below the lens barrel and that is provided beside the lens barrel to control the vibration isolator to rotate in the vertical direction (pitching direction); and a camera. The holding unit, the observation optical system, and the like are arranged to prevent the lens barrel from rotating in the vertical direction. Then, the photographer holds the holding unit and shoots.

The camera disclosed in Japanese Patent Application Laid-Open No. Sho 61-248681 is provided with a gimbal mechanism that can freely move in two axes inside a camera body.
The lens barrel is supported by the gimbal mechanism.

On the other hand, a so-called simple type image stabilizing apparatus which performs image stabilization without optical axis correction of a photographing optical system, such as determining a shutter release timing in accordance with a camera shake amount, is also disclosed.
Various proposals have been made.

Further, in order to enhance the vibration isolating effect, an optional member is added to the simple type vibration isolating device as described above.
It is also conceivable to install a full-scale anti-vibration mechanism using the adapter method.

[0008]

However, according to the means disclosed in Japanese Patent Application Laid-Open No. Sho 61-150580, since the holding portion is disposed at a position largely deviated from the center of gravity of the photographing device, The holding part supports a heavy component such as a lens barrel, and there is a problem that it is difficult to stably hold the photographing apparatus when photographing.

Further, when holding the photographing device, if the lens barrel and the holding unit are respectively held by the right and left hands, the optical axis directions of the observation optical system and the photographing optical system are prevented. There is also a problem that it fluctuates due to the swing operation and becomes difficult to handle.

Further, since the driven parts such as the lens barrel are supported by the cantilevered drive shaft, there is a problem that a large amount of energy and a large amount of energy are required to drive these parts. .

According to the means disclosed in Japanese Patent Application Laid-Open No. 61-248681, when the optical device is supported below the optical device, the weight of the optical device is supported near the center of gravity. However, since the gimbal mechanism is arranged so as to surround the lens barrel, the entire optical device becomes large,
There is a problem that portability and mobility are lacking.

On the other hand, in a camera or the like having the above-described simplified type image stabilizing device, when a full-scale image stabilizing mechanism is mounted by an adapter method, a camera shake detection sensor is provided in the adapter device. In addition to the camera-side shake detection sensor, the shake detection sensor is disposed in the adapter device, which causes a problem that the device becomes expensive.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has as its object to provide a sufficient vibration-proofing effect against camera shake or the like that occurs when photographing with a camera. It is another object of the present invention to provide a camera shake prevention device which is highly mobile and realizes miniaturization.

Also, in a camera or the like having a simple type image stabilizing device, even when an adapter device for full-scale image stabilization capable of correcting an optical axis of a photographing optical system can be mounted, the camera body is also provided inside the camera body. An object of the present invention is to provide an inexpensive camera shake prevention device that also serves as a shake detection sensor provided.

[0015]

In order to achieve the above object, a camera shake preventing device according to a first aspect of the present invention is provided in a camera body, and detects a shake amount applied to the camera body. Detecting means, first vibration damping means for simply reducing the effect of camera shake based on the output of the shake detecting means without correcting the optical axis of the photographing optical system, and the camera body separately And a second vibration isolator which receives a shake signal from the shake detecting means and drives the camera body to cancel the shake applied to the camera body.

The camera shake preventing apparatus according to a second aspect of the present invention is the camera shake preventing apparatus according to the first aspect of the present invention, wherein the second vibration isolating means includes a grip for holding the camera body. Have

A camera shake preventing device according to a third aspect of the present invention includes a camera for simply reducing the influence of camera shake based on an output of a shake detection sensor for detecting a shake amount.
The camera can be attached to the camera, receives a shake signal from the shake detection sensor in the camera, and, based on the shake signal, from a camera grip that drives the camera to cancel the shake applied to the camera. It is characterized by becoming.

Therefore, the shake detecting means in the camera shake preventing apparatus according to the first invention detects the amount of shake applied to the camera body, and the first vibration isolating means provided in the camera body has Based on the output of the detecting means, the effect of camera shake is simply reduced without correcting the optical axis of the photographing optical system. In response to the shake signal from the camera, the camera body is driven so as to cancel the shake applied to the camera body.

The camera shake preventing apparatus according to a second aspect of the present invention is the camera shake preventing apparatus according to the first aspect, wherein the second vibration isolating means has a grip portion for holding the camera body. ing.

Further, in the camera shake preventing device according to the third aspect of the present invention, the camera can easily reduce the influence of the camera shake based on the output of the shake detecting sensor for detecting the amount of shake, and can be mounted on the camera. The camera grip receives a shake signal from a shake detection sensor in the camera, and drives the camera based on the shake signal to cancel the shake applied to the camera.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. First, before describing the embodiments of the present invention, the basic configuration of the camera shake preventing apparatus of the present invention will be described below with reference to the conceptual diagrams of FIGS. 1, 2 and 3.

FIG. 1 is a conceptual diagram showing a first basic configuration of a camera shake preventing device according to the present invention.

As shown in FIG. 1, a camera 10 includes a shake detecting sensor 11 which is a shake detecting means for detecting an amount of shake applied to the camera 10,
And a shake signal output terminal 12 for outputting a shake signal detected by the camera to the outside.
Constitutes a first image stabilizing unit that simply reduces the influence of camera shake based on the output of the shake detection sensor 11 without correcting the optical axis of the photographing optical system.

The camera shake preventing device 4 is provided with the camera 1
0, which is a second anti-shake device that receives a signal from the shake detection sensor 11 and drives the camera 10 so as to cancel the shake applied to the camera 10. And a shake signal input terminal 2 connected to a shake signal output terminal 12 of the camera 10 for inputting a shake signal output from the shake signal output terminal 12. It is constituted by a swing correction means 3 for reducing the shake of the camera 10 based on the shake signal input from the terminal 2.

The camera shake preventing device 4 includes a camera 10
The holding means 5 which is a grip part for assisting the holding of the sheet is also used. The swing correction unit 3 is a unit that corrects the swing by driving and displacing the camera body 10 so that the output of the shake detection sensor 11 built in the camera 10 approaches zero.

FIG. 2 is a conceptual diagram showing a second basic configuration of the camera shake preventing apparatus according to the present invention.

As shown in FIG. 2, a camera 20 has a shake detection sensor 21 for detecting a shake applied to the camera 20, and a shake signal output for outputting a shake signal detected by the shake detection sensor 21 to the outside. A first operation in which the terminal 22 and the camera 20 alone perform an anti-shake action other than the swing reduction
And a shake reducing means 23, which is an anti-vibration means.

The camera 20 has a camera shake preventing device 24 as a second image stabilizing means including a vibration correcting means for reducing the camera shake based on the shake signal from the shake signal output terminal 22. It is designed to be removable.

Thus, when the camera shake prevention device 24 is mounted on the camera 20, the camera shake prevention device 2
By means of 4, the camera body 20 is driven and displaced so that the output of the shake detection sensor 21 approaches zero, thereby correcting the swing.

When the camera shake preventing device 24 is not mounted on the camera 20, the camera shake reducing means 23 in the camera 20 performs a camera shake preventing process other than the swing reduction by itself. Has become.

By combining the first and second basic configurations described above, a third basic configuration of the camera shake preventing device of the present invention can be formed.

FIG. 3 is a conceptual diagram showing a third basic configuration of the camera shake preventing apparatus according to the present invention. As shown in FIG. 3, the camera 20 (the camera shown in FIG. 20) and the camera shake preventing device 4 (see FIG. 1 described above).
The same as the camera shake prevention device 4 shown in FIG. ), The camera shake preventing device is configured by mounting the camera shake preventing device 4 on the camera 20.

Next, a camera shake preventing device according to a first embodiment of the present invention will be described below.

FIGS. 4, 5, 6 and 7 are views showing a camera applied to the first embodiment. FIG. 4 is a schematic perspective view showing the appearance of the camera, and FIG. FIG. 6 is a front view of the camera, and FIG. 7 is a bottom view of the camera. Note that this camera (101) is the camera 1 shown in FIGS.
0,20.

As shown in FIGS. 4 to 7, a subject image is provided on a film 102 (FIG.
(See FIG. 3) A photographing lens 103a as a photographing optical system for forming an image on the shutter and a shutter device 10 for adjusting an exposure amount.
An imaging lens barrel 103 formed by 3b or the like is provided.

In the upper part on the front side of the camera 101,
A finder 105, which is an observation optical system for confirming a subject image to be photographed, and a strobe light 108, which is an auxiliary light source used to obtain an appropriate exposure when the brightness of the subject is insufficient, are provided.

On one side of the upper surface side of the camera 101, a distance measuring and photometric operation for photographing is performed for one second.
t. Release and shoot instructions 2nd. A release button 106 composed of a two-stage release switch and a camera shake reduction exposure mode setting button 112 for setting an exposure mode for reducing camera shake are provided.

On the other hand, on the bottom side of the camera 101, a CPU 117, which is a control means for controlling the operation of the camera 101 as a whole and is constituted by a microcomputer, is provided. It is controlled to operate according to the program determined by the CPU 117.

Here, as shown in FIG.
A line along the optical axis of the photographing lens 103a (photographing optical system) is a z-axis, and a line orthogonal to the z-axis
A line extending in the vertical direction (height direction) of the
Lines perpendicular to the axis and the z-axis, respectively.
Assume a coordinate axis having a line extending in the left-right direction (width direction) as the y-axis.

In the camera 101, the camera 101
Of the vertical swing of, ie, x shown in FIGS.
A first angular velocity detecting means 110 which is a shake detecting means for detecting a vibration angular velocity in a rotation direction about the axis as a rotation center (a swing in a direction perpendicular to the x axis), and a lateral swing vibration of the camera 101; That is, the vibration angular velocity in the rotation direction (the horizontal swing with respect to the x axis; the vertical swing with respect to the y axis) about the y axis shown in FIGS. 4, 5 and 6 is detected. Second angular velocity detecting means 110 which is a shake detecting means
b.

First and second angular velocity detecting means 110, 110
Reference numeral b denotes a so-called gyro-type angular velocity sensor that detects an angular velocity by detecting a difference between charges generated by a piezoelectric effect of a pair of piezoelectric elements that resonate in an ultrasonic region. The first and second angular velocity detecting means 11
Reference numerals 0 and 110b correspond to the shake detection sensor 11 in FIGS.

The first and second angular velocity detecting means 11
The angular velocity signal (analog signal) detected by 0, 110b is input to the CPU 117, and an A / D converter (not shown) built in the IC chip of the CPU 117.
Has been digitized. This enables signal processing in the microcomputer.

Further, the camera 10 is used to take a photograph.
When the camera 1 is held, it is a position held by the lower side of the left hand side, and on the bottom surface of the camera 101, there are two directions indicating the blur detected by the first and second angular velocity detecting means 110 and 110b. Shake signal output contacts 111 and 111b (corresponding to the shake signal output terminal 12 in FIGS. 1 to 3 described above) for respectively outputting angular velocity signals are provided.

The blur signal output contact 111.11
An attachment screw for connecting and fixing the camera 101 and an anti-shake grip (not shown in FIGS. 4 to 7, which will be described in detail later) as a second anti-vibration means is provided near 1 b. A hole 113 (corresponding to the mounting portion 1 in FIGS. 1 to 3 described above) is provided, and a tripod screw hole 109 for fixing the camera 101 to a tripod is provided on the bottom surface side of the camera 101. ing.

The operation of the camera 101 thus configured will be described below with reference to the flowchart of FIG.

As shown in FIG. 12, first, in step S1
, When the power of the camera 101 is turned on,
Power is supplied to each electric circuit block in the camera 101, and the process proceeds to the next step S2.

In step S2, it is determined whether or not the photographer has half-pressed the release button 106, that is, whether the release button 106 has been pressed for the first time. A confirmation is made as to whether the release has been turned on. Here, the photographer half-pressed the release button 106, that is, 1st. If it is determined that the release has been turned on, the process proceeds to the next step S3, in which a distance measuring operation is performed, and in step S4, a photometric operation is performed. Proceed to step S5.

In step S5, the above-described step S
3 based on the distance measurement result,
The focusing operation is performed by moving the photographing lens 103a inside to an appropriate position, and the process proceeds to the next step S6.

In step S6, it is determined whether or not the operator (photographer) of the camera 101 has fully pressed the release button 106, that is, whether the release button 106
nd. A confirmation is made as to whether the release has been turned on. Here, the photographer has fully pressed the release button 106, that is, the second release of the release button 106.
If it is determined that the release has been turned on, the process proceeds to the next step S7.

In step S7, it is determined whether or not the camera shake reduction exposure mode setting button 112 is pressed by the photographer, that is, whether or not the camera shake reduction mode is set. If the camera 101 is not in the camera shake reduction mode Then, the process proceeds to step S9. If the camera 101 is in the camera shake reduction mode, the process proceeds to step S8.

In step S7, it is determined that the camera is not in the camera shake reduction mode, and the process proceeds to step S9. In step S9, in conjunction with the full-press operation of the release button 106 in step S6 described above,
The shutter device 103b is driven to perform an exposure operation.

Then, the process proceeds to the next step S10. At this step S10, the film feeding means (not shown) is driven, and the film 102 is wound up (film fed) for one frame. The next photographing frame is set at a predetermined position in the camera 101, the process returns to the above-described step S2, and the subsequent processes are repeated.

If the photographing frame subjected to the exposure operation this time is the last frame of the film 102, the film feeding means of the camera performs the film rewinding operation and thereafter ends a series of operations.

On the other hand, in the above-described step S7, it is determined that the camera shake reduction mode has been set by pressing the camera shake reduction exposure mode setting button 112 once, and the process proceeds to step S8. It is determined whether or not the camera shake angular velocity signals (blur signals) detected by the first and second angular velocity detecting means 110 and 110b are equal to or smaller than a predetermined value. Proceeding to the process of step S9 described above,
In step S9, an exposure operation is performed. In a next step S10, after a film feeding operation is performed, the process returns to the above-described step S2, and the subsequent processes are repeated.

If it is determined in step S8 that the shake signal is not smaller than the predetermined value, the process proceeds to step S7, and the subsequent processes are repeated.

Each time the camera shake reduction exposure mode setting button 112 is pressed once, a mode setting state and a mode releasing state are repeated, and the state is changed.
For example, when the camera shake reduction exposure mode setting button 112 is pressed once, the camera shake reduction mode is set, and when the camera shake reduction exposure mode setting button 112 is pressed once more, the camera shake reduction mode is released.

Therefore, if the blur signal does not fall below the predetermined value in step S8 and the process cannot proceed, the camera shake reduction mode is released by pressing the camera shake reduction exposure mode setting button 112 once. Then, it is possible to proceed to the next exposure operation.

As described above, the camera 101 applied to the first embodiment is set to the camera shake reduction mode by itself, and when the camera 101 is set to the camera shake reduction mode, Only when the camera shake angular velocity signal (blurring signal) detected by the second angular velocity detecting means 110, 110b becomes equal to or less than a predetermined value, the operation of the shutter device 103b is permitted to perform the exposure operation. It has a so-called simple anti-vibration device capable of taking a photograph with reduced blur.

Next, an anti-shake grip applied to the first embodiment of the present invention will be described below.

FIG. 8, FIG. 9, FIG. 10, and FIG.
8 is a diagram showing an anti-shake grip applied to the embodiment of the present invention, FIG. 8 is a schematic perspective view showing the appearance of the anti-shake grip, and FIG. FIG. 10 is a front view showing a mounted state,
FIG. 11 is a front view schematically illustrating the internal configuration of the anti-shake grip, and FIG. 11 is a side view schematically illustrating the internal configuration of the anti-shake grip.

As shown in FIGS. 8 to 11, the anti-shake grip 200 as the second vibration isolating means includes a mounting stage 212 and a base member 213 formed by two L-shaped members, and It is formed by a bellows-like member 221 and the like provided so as to cover between the use stage 212 and the base member 213.

The anti-shake grip 200
Is mounted on the camera 101 as shown in FIG. That is, the screw 223 is screwed into the screw hole 224 provided on the mounting stage 212 in a state where the bottom surface of the camera 101 and the long side of the mounting stage 212 of the camera shake preventing grip 200 are in contact with each other. Further, by screwing the screw 223 into a mounting screw hole 113 provided on the bottom surface of the camera 101, the camera 101 and the anti-shake grip 200 are connected.

The shake signal input contacts 225a, 225b (corresponding to the shake signal input terminal 2 in FIGS. 1 to 3) are provided on the upper surface of the long side of the mounting stage 212 of the camera shake prevention grip 200. The shake signal input contacts 225a and 225b are connected to the camera 101 and the anti-shake grip 200 when the camera 101 and the anti-shake grip 200 are connected.
Shake signal output contacts 111 and 111b on the camera 101 side
(See FIG. 6). Thus, the camera shake angular velocities (shake signals) in two directions detected by the first and second angular velocity detectors 110 and 110b on the camera 101 side are transmitted to the camera shake prevention grip 200 side.

Further, on the outer surface of the anti-shake grip 200, an anti-shake button 218 for instructing to start or stop anti-shake driving is provided. The mounting position of the anti-vibration button 218 is determined when the camera 101 on which the anti-shake grip 200 is mounted is held.
Any position may be used as long as the operation can be easily performed. For example, in FIG. 9, a position where the operation can be easily performed with the left index finger or the like holding the camera 101 to which the camera shake prevention grip 200 is mounted is shown. This is an example of the case in which they are provided.

On the other hand, as shown in FIG. 10 and FIG.
3, a motor 21 serving as a power source is directed inward toward the long side.
5a, a pinion gear is fixedly mounted on the rotation shaft of the motor 215a, and a large-diameter gear portion of a reduction gear 214a composed of a two-stage gear for increasing the driving force of the motor 215a is meshed with the pinion gear. doing. The small-diameter gear portion of the reduction gear 214a meshes with a gear portion integrally fixed to the roller 222a, whereby the driving force of the motor 215a is reduced.
2a.

The roller 222a is disposed so as to contact the lower surface of the long side of the mounting stage 212. Therefore, the rotation of the motor 215a causes the roller 222a to drive the mounting stage 212 in a rotational direction about an axis parallel to the x-axis shown in FIG. 9 through a point in contact with the roller 222b. Has become.

A motor 215b, which is a power source, is provided inward on an upright side of the base member 213, that is, on a side orthogonal to the long side of the base member 213, and a rotating shaft of the motor 215b is provided. , A pinion gear is fixedly mounted. The pinion gear has a motor 215.
reduction gear 2 consisting of a two-stage gear for increasing the driving force of b
The large-diameter gear portion 14b meshes. The small-diameter gear portion of the reduction gear 214b meshes with a gear portion integrally fixed to the roller 222b, whereby the driving force of the motor 215b is transmitted to the roller 222b.

The roller 222b is disposed so as to contact the inner wall of the upright side of the mounting stage 212. Therefore, when the motor 215b is rotationally driven, the roller 222b drives the mounting stage 212 in a rotational direction about the axis parallel to the y-axis shown in FIG. 9 through the point in contact with the roller 222a. Has become.

Also, on the upright side of the base member 213,
A motor drive circuit 216 composed of a so-called motor bridge circuit for supplying electric power to the motors 215a and 215b to start, stop and control the rotation direction of the motors 215a and 215b, and controls the motor drive circuit 216. Anti-vibration control circuit 21 formed by a microcomputer or the like
7 and the like are provided.

To the anti-vibration control circuit 217, blur signal input contacts 225a and 225b are connected, and the first and second angular velocity detecting means 110 and 11 on the camera 101 side are connected.
0b is detected by the camera 101
Signal output contacts 111 and 111b on the side, and the signal input contacts 225a and 225a on the shake prevention grip 200 side.
The signal is input to the anti-vibration control circuit 217 via the interface 25b.

Further, the above-mentioned anti-shake button 218 is also electrically connected to the anti-shake control circuit 217. Therefore, an instruction signal for starting or stopping camera shake prevention driving by the image stabilization button 218 is input to the image stabilization control circuit 217.

The mounting stage 212 and the base member 213 are respectively attached to both ends of two urging springs 220, so that the mounting stage 212 and the base member 213 are connected to each other. , Are biased in a direction to attract each other. Therefore, the mounting stage 2
12 is pressed against the two rollers 222a and 222b with an appropriate amount of force, whereby the position of the mounting stage 212 and the base member 213 is regulated, and the rollers 222a and 222b are rotated by rotation. The mounting stage 212 can be displaced without slipping.

At least one of the peripheral surfaces (contact surfaces) of the rollers 222a and 222b or the inner surface (contact surface) of the mounting stage 212 is covered with a member having a large friction coefficient such as rubber. By doing so, the rotational sliding of the rollers 222a and 222b can be more effectively prevented.

Then, as described above, the mounting stage 2
Between the base member 213 and the base member 213, a bellows-like member 221 is provided so as to prevent intrusion of dust and the like into the inside thereof, and to ensure the displacement of the mounting stage 212 freely. Stage 212 and base member 2
13 are connected.

The operation of the anti-shake grip 200 thus configured will be described below with reference to the flowchart of FIG.

First, in step S21, the operation of the anti-shake button 218 is confirmed. Here, when the anti-shake button 218 is on, the next step S2
Proceed to step 2.

In step S22, the anti-vibration control circuit 217 controls the A built in the IC chip provided therein.
A / D converter (not shown) digitizes the two-way angular velocity signal (analog signal) indicating the blur input from the blur signal input contacts 225a and 225b to enable signal processing by the microcomputer. Then, the process proceeds to the next step S23.

In step S23, power is supplied to the motors 215a and 215b via the motor drive circuit 216 based on the signal digitized in step S22 described above, and the mounting stage 212, Camera 101 attached to 200
The rotation drive for performing the image stabilization is started. Then, the process returns to the above-described step S21, and the subsequent processes are repeated while the anti-shake button 218 is on.

As described above, while the operation of the anti-shake button 218 is being performed, that is, while the anti-shake button 218 is in the ON state, the anti-shake operation for the camera 101 is continuously performed.

Here, the anti-shake operation in the above-mentioned camera shake anti-shake device will be described in more detail.

FIGS. 14 and 15 are views showing the main parts of an anti-shake grip 200 in the camera anti-shake device of the first embodiment. FIG. FIG. 15 is an external perspective view of a main part, showing only constituent members for rotating the mounting stage 212 in the x-axis direction shown in FIG. 14, and FIG. 15 is a view when viewed from a side surface of FIG.

Here, the anti-vibration operation in the rotation direction about the x-axis shown in FIG. 9 will be considered. Therefore, in FIGS. 14 and 15, only components related to this description are shown, and other components are omitted.

For example, in FIGS. 14 and 15, a camera (FIGS. 14 and 15) mounted on the mounting stage 212 is used.
Not shown in FIG. ) Is rotated in the direction of arrow D about the x-axis shown in FIG.

In this case, first, the camera 101
When the first angular velocity detecting means 110 detects a shake signal in the direction around the x-axis shown in FIG. 14 (the direction of arrow D shown in FIGS. 14 and 15), the shake signal is converted into a camera shake. The output is output to the anti-vibration control circuit 217 in the anti-grip 200, and in response thereto, the anti-vibration control circuit 217 drives the motor 215a to rotate the camera 101 in the direction opposite to the blur direction (the direction of arrow D). Control the direction of rotation, etc.
That is, in this case, the rotation of the motor 215a is controlled so that the roller 222a is rotated in the direction of arrow F shown in FIG.

Here, since the roller 222a is in contact with the contact point C on the lower surface of the mounting stage 212, when the roller 222a rotates in the F direction in this state,
The contact point C on the mounting stage 212 moves in the direction of arrow H shown in FIG.

On the other hand, when the contact point between the roller 222b provided on the surface orthogonal to the roller 222a and the mounting stage 212 is the contact B, the mounting stage 212
The movement is restricted at the contact point B. Therefore, as described above, the contact C on the mounting stage 212
Moves in the direction of arrow H, the mounting stage 212
It rotates in the direction of arrow I shown in FIG. This rotation in the direction of arrow I is
The rotation is in the direction opposite to the rotation in the direction of arrow D due to the shake generated in 1.

Therefore, the rotation of the mounting stage 212 in the direction of the arrow I is transmitted to the camera 101 fixed to the stage 212, thereby canceling the rotation of the mounting stage 212 in the direction of the arrow D due to the shake of the camera 101. Becomes

By repeating such operations continuously, it is possible to cancel vibrations due to camera shake or the like arbitrarily occurring in both size and direction.

Here, the feedback speed, that is, the response speed of the anti-shake operation for preventing the generated blur does not operate at a sufficient speed, and the amount of return from the anti-shake grip 200 for canceling the blur, That is, when the amount of vibration generated by the anti-shake grip 200 is too large than the generated blur, the anti-shake device is in a transmission state, that is, a state where the anti-shake operation cannot be performed effectively, and unnecessary There is a possibility that vibration will be generated. Therefore, it is desirable that the amount of vibration for image stabilization generated by the camera shake prevention grip 200 be equal to or less than the amount of vibration due to camera shake or the like generated on the camera 101 side.

Although only the anti-vibration operation in the rotation direction about the x-axis shown in FIG. 9 has been described here, the anti-vibration operation in the rotation direction about the y-axis shown in FIG. A similar operation will be performed.

As described above, according to the first embodiment, the camera shake can be easily prevented even with a single camera, and full-scale camera shake correction can be performed without impairing portability and mobility. Range can be realized.

Further, since the shake signals detected by the first and second angular velocity detecting means 110 and 110b on the camera side are transmitted to the hand shake prevention grip 200, the shake detection sensor is shared. By reducing the number of components, the size of the apparatus can be reduced, and the cost can be reduced.

In addition to effectively preventing blur due to camera shake or the like occurring in the camera 101 at the time of photographing, the photographing is performed by observing and confirming the subject with the viewfinder 105 when photographing, and by driving the photographing lens 103a. Even during the execution of the focusing operation, it is possible to easily prevent the occurrence of shake due to hand shake or the like.

In the first embodiment, the transmission of the camera shake signal between the camera 101 and the camera shake prevention grip 200 is performed by an analog signal. By converting the signal into a digital signal, communication using a digital signal may be performed.

Further, by arranging the connection terminal for supplying the power supply, the main power supply can be provided only to either the camera 101 or the anti-shake grip 200, and the power supply can be easily shared. Becomes

Further, when the anti-shake grip 200 is attached to the camera 101,
Even when the image stabilization operation of “0” is operating, the camera shake reduction mode of the camera 101 may be operated to perform the image stabilization operation also on the camera 101 side.

On the other hand, when the anti-shake grip 200 is mounted on the camera 101 and the anti-shake operation of the anti-shake grip 200 is in operation, a simple anti-shake action on the camera 101 side, that is, The anti-shake operation in the camera shake reduction mode may be prohibited. In this case, useless power consumption can be prevented, and a power-saving design can be achieved.

Here, a camera shake preventing device according to a second embodiment of the present invention will be described below. The camera shake preventing apparatus according to the second embodiment includes a camera 101 with the above-described camera shake preventing grip 200 mounted on the camera 101 and a camera 101 side when the camera shake preventing operation of the camera shake preventing grip 200 is in operation. This is an example of a case in which the camera shake reduction process is prohibited.

The camera shake preventing apparatus according to the second embodiment is basically the same as that according to the first embodiment. The illustration is omitted, and referring to FIGS. 4 to 15 described above,
In the following description, description will be made using the same reference numerals.

The camera shake preventing apparatus according to the second embodiment transmits a shake signal between the camera 101 and the camera shake preventing grip 200 by a so-called serial communication. This allows more types of information transmission.

The information performed by the serial communication includes, for example,
00, whether the camera 101 is mounted, or the camera 101
There are various kinds of information such as information on the operation mode and the like, and these various kinds of information are collected and determined, and corresponding various operations are controlled.

The input / output terminals for performing the serial communication include the camera shake prevention grip 200 (FIGS. 8 to 11) from the camera 101 (see FIGS. 4 to 7) in the first embodiment. Reference signal output contacts 111 and 111b for outputting an angular velocity signal with respect to
The shake signal input contacts 225a and 225b of the shake prevention grip 200 provided at positions facing the shake signal output contacts 111 and 111b are used.

Therefore, in the second embodiment,
For convenience, the shake signal output contact point 111 on the camera 101 side and the shake signal input contact point 225a on the camera shake prevention grip 200 side
Are data contacts, and the camera 1
The shake signal output contact 111b on the 01 side and the shake signal input contact 225b on the shake prevention grip 200 side are referred to as clock contacts, respectively.

Also, in the second embodiment,
As in the first embodiment described above, the two-directional angular velocity signals indicating the blur detected by the first and second angular velocity detecting means 110 and 110b are stored in an IC chip of the CPU 117 in the camera 101. The data is digitized by a / D converter.

The digitized angular velocity signals in two directions are supplied to a clock contact (a shake signal output contact 111).
Communication is performed by synchronizing with the serial communication clock signal transmitted from b) and transmitting it as a digital signal from the data contact (blurring signal output contact 111).

By setting the data contact (111) as an input terminal for serial data, the camera 101 can receive information input from the anti-shake grip 200.

In accordance with this, the anti-shake grip 20
On the 0 side, the anti-vibration control circuit 217 outputs the clock contact (2
Information is input from the data contact (225a) or is output to the data contact (225a) in accordance with the synchronous clock signal for serial communication from 25b).

By configuring the communication mode as described above, two-way communication of various information is possible between the camera 101 and the anti-shake grip 200.

Next, a data format of communication information performed between the camera 101 and the anti-shake grip 200 according to the second embodiment will be described below.

First, the data is communicated in units of 1 byte, that is, in units of 8 bits. When viewed from the camera 101 side, the first communication is performed.
The output data, the first input data, and the case where two sets of the second, third and fourth and fifth output data are output in units of two bytes according to the first input data, May not be done.

The second and third output data indicate the angular velocity signals detected by the first angular velocity detecting means 110, and the fourth and fifth output data are detected by the second angular velocity detecting means 110b. FIG.

The first output data is a camera shake prevention grip 2
This is a signal for transmitting a signal for starting communication with 00, and here, code = S. Note that this code = S is 53H in hexadecimal.

When the code = S is received, the anti-shake grip 200 is
When the anti-vibration operation of “0” is in operation, data = 1 is transmitted to the camera 101 as the first input data. When the anti-vibration operation of the anti-shake grip 200 is not performed, The anti-shake grip 200 transmits data = 2 to the camera 101 as first input data.

The camera 101 checks the first input data transmitted from the anti-shake grip 200 described above. Only when this first input data is 1, the second and third output data are output. , And fourth and fifth output data, respectively.

Therefore, when the first input data transmitted to the camera 101 is data = 1 and the second and third output data and the fourth and fifth output data are output, camera shake prevention is performed. A flag indicating that the operation is in operation is set.

That is, if the first input data is data = 1,
Alternatively, if data = 2, the anti-shake grip 20
0 indicates that the camera 101 is attached to the camera 101;
When it is determined that the anti-shake grip 200 is not mounted, the data contact point 111 remains in the initial state, so that there is no signal change and a code of ffH (hexadecimal) is obtained. I have.

If the first input data transmitted to the camera 101 is not data = 1 or data = 2, it is determined that the anti-shake grip 200 is not mounted on the camera 101, so that the anti-shake operation is performed. The flag indicating that is operating is set to a clear state.

When the first input data is data = 2, display means (not shown) on the camera 101
In addition, an indication that the anti-shake grip 200 is on standby is displayed.

Note that the series of serial communication is performed, for example, for several msec. It is performed regularly every time. Therefore, the interrupt enable setting by the timer is performed after the power is turned on,
The anti-shake control circuit 217 of the anti-shake grip 200 includes:
The clock contact 225b and the data contact 225a are constantly monitored, and power is supplied to the camera shake preventing motors 215a and 215b only when the image stabilization button 218 is operated and a shake signal is communicated by serial communication. It has become.

The operation of the camera in the camera shake preventing apparatus according to the second embodiment configured as described above will be described.
This will be described below.

FIG. 16 is a flowchart showing the operation of the camera applied to the camera shake preventing apparatus according to the second embodiment. FIG. 17 is a flowchart showing a camera shake signal processing during the operation of the camera shown in FIG. It is a flowchart which shows a routine.

As shown in FIG. 16, first, in step S3
In 1, when the main power supply of the camera 101 is turned on, power is supplied to each electric circuit block in the camera 101. At this time, the first and second angular velocity detecting means 110, 110, which are shake detecting sensors for detecting hand shake,
Power is also supplied to b. Then, the process proceeds to the next step S32.

In step S32, the photographing lens barrel 103 is retracted into the camera 101, that is, moved from the retracted position to a state where a photograph can be taken, that is, moved to the photographing initial position, and the camera 101 is ready for photographing. And the process proceeds to step S33.

At step S33, the camera 101
Periodically (for example, every several msec.) Permits digitization of the angular velocity signal and interrupt processing to the camera shake signal processing routine in order to perform serial communication with the camera shake prevention grip 200. Thereafter, the operation of digitizing the angular velocity signal is periodically performed. Then, the process proceeds to the next step S34.

Here, the interrupt processing to the camera shake signal processing routine will be described with reference to FIG.

As shown in FIG. 17, first, in step S5
In steps S1 and S52, the A / D converter built into the IC chip of the CPU 117 in the camera 101 sends the first and second angular velocity detecting means 110 and 110b to the camera 101.
The digitalization of the angular velocity signal (analog signal) indicating the blur caused by the camera shake or the like is performed. Here, the digitized angular velocity signal is represented by, for example, a 2-byte signal. Therefore, a digital signal of a total of 4 bytes is obtained as the shake signal from the first and second angular velocity detecting means 110 and 110b. Then, the process proceeds to the next step S53.

In step S53, the output data is transmitted serially, and subsequently, in step S54, the input data is serially received, and the process proceeds to the next step S55. In this step S55, the input data is confirmed. If it is determined that the input data = 1, the process proceeds to step S56, where the first angular velocity signal (for 2 bytes) is
Subsequently, in step S57, the second angular velocity signal (for 2 bytes) is serially transmitted, and the next step S57 is executed.
In step S58, a flag indicating that the camera shake preventing operation is in operation is set. Then, the camera shake signal processing routine is terminated, and the processing in step S34 in FIG. Proceed to (Return).

If it is determined in step S55 that input data is not equal to “1” (input data = 1)
If not, the process proceeds to step S59. In this step S59, the flag indicating that the camera shake preventing operation is in operation is cleared, and the process proceeds to the next step S60.

In step S60, the input data is checked again. Here, if it is determined that the input data = 2, the process proceeds to the next step S61, and in this step S61, a display indicating that the camera shake prevention grip is on standby is displayed on the display unit of the camera 101. After the execution, the camera shake signal processing routine is ended, and the process proceeds to the above-described processing of step S34 in FIG.

If it is determined in step S60 that the input data is # 2 (input data = 2
If not, the camera shake signal processing routine is terminated, and the process proceeds to the above-described processing of step S34 in FIG. 16 (return).

Returning to FIG. 16, step S34 is executed.
In this case, it is confirmed whether or not the operator (photographer) of the camera has half-pressed the release button.
If it is determined that the photographer has half-pressed the release button 106, the process proceeds to the next step S35, in which a distance measuring operation is performed, and subsequently, in step S36, photometry is performed. The operation is performed, and the flow advances to the next step S37.

In step S37, it is confirmed whether or not the photographer has pressed the release button 106 fully. Here, the photographer presses the release button 106
If it is determined that the button has been fully pressed, the process proceeds to the next step S38.

In step S38, the focusing operation is performed by moving the photographing lens in the photographing lens barrel to an appropriate position based on the result of the distance measurement in step S35, and the flow advances to the next step S39. .

In step S39, it is confirmed whether or not the camera shake preventing operation by the camera shake preventing grip is in operation. Here, when it is determined that the anti-shake operation by the anti-shake grip is in operation, that is, when the flag indicating that the anti-shake operation is in progress is set, a simple camera shake reduction process by the camera is performed. The process proceeds to step S42 without performing.

If it is determined in step S39 that the anti-shake operation by the anti-shake grip 200 has not been activated, that is, if the flag indicating the anti-shake operation has been cleared, the process proceeds to the next step S40. In this step S40, it is confirmed whether or not the camera 101 is set to the camera shake reduction mode for performing a simple camera shake reduction process. If the camera 101 is set to the camera shake reduction mode, Step S41
If the camera 101 is not in the camera shake reduction mode, the process proceeds to step S42.

If it is determined in step S39 that the anti-shake operation is being performed by the anti-shake grip 200, or in step S40, the camera 101 is not set to the anti-shake mode. If it is determined that the process proceeds to step S42, the process proceeds to step S42.
In conjunction with the full-press operation of the release button 106 in step 8, the shutter device 103b is driven based on the photometry result in step S36, and an exposure operation is performed. Then, the process proceeds to the next step S43.

In step S39, it is determined that the anti-shake operation is not performed by the anti-shake grip 200, and the process proceeds to step S40.
Is determined to be in the camera shake reduction mode, and proceeds to the process in step S41. In this step S41, the camera shake angular velocity signals (blur signals) detected by the first and second angular velocity detecting means 110 and 110b. Is determined to be equal to or less than a predetermined value, and when the shake signal is equal to or less than the predetermined value, the process proceeds to the above-described step S42. In this step S42, an exposure operation is performed. The process proceeds to S43.

If it is determined in step S41 that the shake signal is not smaller than the predetermined value, the process returns to step S40, and the subsequent steps are repeated.

Then, in step S43, the film feeding means (not shown) is driven. At this time, it is confirmed whether or not the photographed frame subjected to the exposure operation this time is the last frame. If it is determined that the photographed frame subjected to the exposure operation this time is not the last frame, the process proceeds to step S44, and in this step S44, the film is wound up by one frame (film feeding) operation. That is, the winding-up routine is executed, and the next photographing frame is set at a predetermined position in the camera 101. Then, the process returns to the above-described step S34, and the subsequent processes are repeated.

If it is determined in step S43 that the photographed frame subjected to the current exposure operation is the last frame, the process proceeds to step S45, in which the camera 101 feeds the film. The means is such that after the film rewinding (film feeding) operation, that is, the rewinding routine is executed, the photographer can use the camera 101 to take a picture without noticing that the loaded film has been taken. The operation of the entire camera 101 is locked (prohibited) so as not to perform
End a series of sequences (END).

Next, the operation of the anti-shake grip in the anti-shake device for a camera according to the second embodiment will be described below.

FIG. 18 is a flow chart showing the operation of the camera shake preventing grip applied to the camera shake preventing device of the second embodiment.

As shown in FIG. 18, first, at step S7
In step 1, after confirming the operation state of the anti-vibration button 218, the process proceeds to the next step S72. In step S72, the presence / absence of a clock signal is confirmed. Camera 101
Serial communication between them is started. Here, when the clock signal is detected, the process proceeds to the next step S73, and when the clock signal is not detected, the process returns to the above-described step S71.

In step S73, one byte of data is first received, and in the next step S74, the code received in the above-described processing in step S73 communicates between the camera 101 and the anti-shake grip 200. It is confirmed whether or not the instruction code = S. Here, when it is determined that the code is $ S (when the code is not S), the process returns to the above-described step S71.

In step S74, if it is determined that the code received in step S73 is code = S, the process proceeds to step S7.
Proceed to step 5.

In step S75, the anti-shake button 21
8 is confirmed. Here, the anti-vibration button 218
Is pressed, it is determined that the switch is in the ON state, the process proceeds to the next step S77,
At 77, data = 1 is transmitted as the first input data to the camera 101, and the process proceeds to the next step S78.

In step S78, two bytes of the first angular velocity signal are received. Subsequently, in step S79, two bytes of the second angular velocity signal are received. Then, the flow advances to the next step S80. Based on the first and second angular velocity signals received in steps S78 and S79 described above, the motor drive circuit 216 supplies power to the anti-shake motors 215a and 215b,
Start camera shake prevention operation. Then, the above-described step S
Returning to the process of 71, the subsequent processes are repeated.

If it is determined in step S75 that the anti-shake button 218 has not been operated and that the camera is in the off state, the process proceeds to step S76. Then, after transmitting data = 2 as the first input data, the process returns to the above-described step S71, and the subsequent processes are repeated.

By repeating the operation described with reference to FIG. 18, while the anti-shake button 218 is operated to be in the ON state, the anti-shake operation for the camera 101 is continuously performed.

As described above, according to the second embodiment, when the anti-shake grip 200 is in operation, a simple camera shake reduction process for the camera 101 is not performed. , Prevent unnecessary power consumption,
It is possible to realize a camera shake preventing device designed to save labor.

In the camera shake preventing apparatus according to the first embodiment, in order to transmit various kinds of information, an input / output terminal corresponding to each piece of information, for example, a camera shake preventing grip 200 is mounted. It is necessary to add (add) an input / output terminal connected to a switch for detecting a state, an output terminal for transmitting a shake signal to the camera 101 during operation of the anti-shake grip 200, and the like. In the camera shake preventing apparatus according to the present embodiment, since various kinds of information are transmitted by serial communication, it is not necessary to newly add an input / output terminal. Therefore, the input / output terminals for connecting the camera 101 and the anti-shake grip 200 can be simplified, which can contribute to an improvement in maintenance and a reduction in manufacturing cost.

[Supplementary Note] According to the embodiment of the present invention, an invention having the following configuration can be obtained.

(1) A shake detecting means provided in the camera body for detecting the amount of shake applied to the camera body, and a second means for simply reducing the influence of camera shake based on the output of the shake detecting means. A second anti-vibration means, which is formed separately from the camera body and receives a shake signal from the shake detection means and drives the camera body to cancel the shake applied to the camera body. A camera shake preventing device comprising: a vibration unit. According to the camera shake preventing apparatus described in Appendix 1, a simple image stabilizing effect can be obtained even when the second image stabilizing unit separate from the camera body is not attached to the camera body. By mounting the above anti-vibration means on the camera body, a full-scale anti-vibration effect can be obtained.

(2) The camera shake preventing apparatus according to appendix 1, wherein the first image stabilizing means permits release when the amount of shake becomes equal to or less than a predetermined value.

(3) The camera shake preventing device according to the appendix 1, wherein the first vibration isolator has a vibration isolating effect even when the second vibration isolator is mounted on the camera body.

(4) The camera shake prevention device according to Appendix 1, wherein the operation of the first image stabilizing means is prohibited when it is detected that the second image stabilizing means is mounted on the camera body. apparatus.

(5) The camera shake preventing device according to appendix 1, wherein the second vibration isolating means has a grip portion for holding the camera body.

(6) The second anti-vibration means includes a first anti-vibration driving means for canceling the vibration around the first axis, and a vibration around the second axis different from the first axis. 2. The camera shake prevention device according to claim 1, further comprising a second vibration-proof driving unit for canceling the image.

(7) The camera shake described in Appendix 1, wherein the second vibration isolator has a rotor that is in pressure contact with the camera body, and rotates the rotor based on an output from the shake detector. Prevention device.

(8) The camera body and the second image stabilizing means are connected by a communication line, and a shake signal from the shake detecting means in the camera body is transmitted by the communication line to the second image stabilizing means. 2. The camera shake prevention device according to claim 1, wherein the camera shake prevention device communicates with the camera.

(9) It can be attached to a camera having a shake signal output terminal for outputting a signal of a built-in shake detection sensor to the outside, and has a shake signal input terminal connected to the shake signal output terminal. A camera shake preventing device comprising a camera shake correcting means for reducing camera shake based on a camera shake signal input from a camera shake signal input terminal.

(10) The camera shake preventing apparatus according to supplementary note 9, wherein the camera shake preventing apparatus also serves as a holding means for assisting holding of the camera.

(11) In the camera shake preventing apparatus according to appendix 9, the swing correction means drives and displaces the camera body such that the output of the shake detecting sensor built in the camera approaches zero. It is.

(12) In a camera having a shake signal output terminal for outputting a signal of a built-in shake detection sensor to the outside, a swing for reducing camera shake based on a shake signal from the shake signal output terminal A camera provided with a shake reducing means capable of attaching a correcting means and performing a camera shake preventing measure other than the swing reducing alone when the swing correcting means is not mounted.

(13) A built-in shake detection sensor, a shake reduction means for taking measures to prevent camera shake based on the signal of the shake detection sensor, and further outputting the signal of the built-in shake detection sensor to the outside The camera has a shake signal input terminal connected to the shake signal output terminal, and the camera can be mounted on the basis of a shake signal input from the shake signal input terminal. An image stabilizing device for a camera, comprising a vibration correcting means for reducing camera shake.

[0166]

As described above, according to the present invention, a sufficient vibration damping effect against camera shake and the like generated when a picture is taken by a camera can be obtained, and a high mobility and a small size can be realized. A camera shake prevention device for a camera can be provided.

Also, in the case of a camera having a simple image stabilizing device, even if an adapter device for full-scale image stabilization capable of correcting the optical axis of the photographing optical system can be mounted, the camera is provided in the camera body. By also using the shake detection sensor provided, it is possible to provide an inexpensive camera shake prevention device.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing a first basic configuration of a camera shake preventing device of the present invention.

FIG. 2 is a conceptual diagram showing a second basic configuration of the camera shake preventing device of the present invention.

FIG. 3 is a conceptual diagram showing a third basic configuration of the camera shake preventing device of the present invention.

FIG. 4 is a schematic perspective view showing the appearance of a camera applied to the first embodiment of the present invention.

FIG. 5 is a longitudinal sectional view of the camera of FIG. 4;

FIG. 6 is a front view of the camera of FIG. 4;

FIG. 7 is a bottom view of the camera shown in FIG. 4;

FIG. 8 is a schematic perspective view showing the appearance of a camera shake preventing grip applied to the first embodiment of the present invention.

FIG. 9 is a front view showing a state in which the camera shake preventing grip of FIG. 8 is attached to the camera.

FIG. 10 is a front view schematically showing the internal configuration of the anti-shake grip shown in FIG. 8;

FIG. 11 is a side view schematically showing the internal configuration of the camera shake prevention grip of FIG. 8;

FIG. 12 is a flowchart showing the operation of the camera of FIG. 4;

FIG. 13 is a flowchart showing the operation of the camera shake prevention grip of FIG. 8;

14 is an external perspective view of a main part of the anti-shake grip of FIG.

FIG. 15 is a side view of FIG. 14;

FIG. 16 is a flowchart showing an operation of the camera applied to the camera shake prevention device according to the second embodiment of the present invention.

FIG. 17 is a flowchart showing a camera shake signal processing routine during operation of the camera in FIG. 16;

FIG. 18 is a flowchart showing an operation of a camera shake prevention grip applied to the camera shake prevention device according to the second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Mounting part 2 ... Shake signal input terminal 3 ... Sway correction means 4 ... Camera shake prevention device (2nd vibration-proof means) 5 ... Holding means (grip part) 10, 20, 101 ... Camera (first anti-vibration means) 11, 21... Blur detection sensor (vibration detecting means) 12, 22, 111, 111b... Blur signal output terminal 23. ... Anti-shake device (second anti-shake means) 110... First angular velocity detecting means (blurring detecting means) 110 b... Second angular velocity detecting means (blurring detecting means) 112. 113: Mounting screw hole (mounting part) 218: Anti-vibration button

Claims (3)

[Claims] 1. A blur detecting means provided in a camera main body for detecting an amount of blur applied to the camera main body, and based on an output of the blur detecting means, simple without optical axis correction of a photographing optical system. A first anti-shake means for reducing the effect of camera shake, and a camera body which is formed separately from the camera body, receives a shake signal from the shake detection means, and cancels a shake applied to the camera body. And a second vibration isolator for driving the camera body. 2. The camera shake prevention device according to claim 1, wherein the second vibration isolator has a grip portion for holding the camera body. 3. A camera for simply reducing the effect of camera shake based on the output of a camera shake detection sensor for detecting a camera shake amount, and a camera which can be mounted on the camera and which is provided by the camera shake detection sensor in the camera. A camera grip for driving the camera so as to cancel a shake applied to the camera based on the shake signal and canceling the shake applied to the camera based on the shake signal.