JPH07209686A - Shake correction camera - Google Patents

Shake correction camera

Info

Publication number
JPH07209686A
JPH07209686A JP536194A JP536194A JPH07209686A JP H07209686 A JPH07209686 A JP H07209686A JP 536194 A JP536194 A JP 536194A JP 536194 A JP536194 A JP 536194A JP H07209686 A JPH07209686 A JP H07209686A
Authority
JP
Japan
Prior art keywords
shake
shake correction
means
camera
step
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP536194A
Other languages
Japanese (ja)
Inventor
Tatsuo Amanuma
Toshiyuki Nakamura
Keiji Urata
敏行 中村
辰男 天沼
圭史 浦田
Original Assignee
Nikon Corp
株式会社ニコン
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nikon Corp, 株式会社ニコン filed Critical Nikon Corp
Priority to JP536194A priority Critical patent/JPH07209686A/en
Priority claimed from US08/377,066 external-priority patent/US5659807A/en
Publication of JPH07209686A publication Critical patent/JPH07209686A/en
Pending legal-status Critical Current

Links

Abstract

(57) [Summary] [Purpose] In a shake correction camera with a self-timer function, the shake correction function is operated rationally. [Structure] In order to correct the shake generated by vibration,
Shake correction means (CPU 1, camera shake detection circuits 3 and 4, for moving the shake correction lens 11 in a direction substantially perpendicular to the optical axis direction).
Motor drive circuits 5 and 6, motors 7 and 8, lens position detection circuits 13 and 14), and delay mode setting means (CPU 1, self switch 18) for setting a time delay mode in which a shutter opening operation is performed after a predetermined time has elapsed from the release operation. )
And a control means (CPU 1) for controlling the shake correction means so as not to operate when the delay mode setting means is set to the time delay mode.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera shake correction camera for correcting camera shake and the like generated during photographing.

[0002]

2. Description of the Related Art Conventionally, a shake correction camera having a shake correction function has been proposed in order to correct camera shake during shooting. This is a correction provided in a part of the photographic lens system so as to cancel the shake based on the output of the shake detection sensor while the shutter is open when the shake detection sensor provided in the camera detects the shake. The lens is moved in a direction substantially perpendicular to the optical axis direction to correct the shake. On the other hand, conventionally, as one of the auxiliary functions of the camera,
A self-timer function is known which executes shooting after a predetermined time has elapsed from the release operation.

[0003]

However, if the above-described conventional shake correction camera is provided with the self-timer function, there are the following problems. First, since the shake detection sensor is activated at the start of the shooting process, in the shooting in the self-timer mode, the circuit of the shake detection sensor remains in the energized state between the release operation and the shooting execution, and the current consumption of the camera is reduced. There is a problem that it becomes large. Secondly, since shooting in the self-timer mode is usually performed with the camera fixed such as by using a tripod, the possibility that shake will occur is extremely small. In such a case, the shake correction function should not be activated. There is a problem that it is uneconomical. Thirdly, from the viewpoint of the second problem described above, if the shake correction function is not activated in the self-timer mode, the correction lens is placed at a position deviated from the center of the optical axis while being stored in the initial position. Will be done. For this reason, there is a problem that the photographing result becomes poor.

The present invention has been made to solve the above problems, and an object of the present invention is to reasonably operate the shake correction function in a shake correction camera having a self-timer function.

[0005]

In order to achieve the above object, the first solution means of the shake correction camera according to the present invention is as follows.
In order to correct shake generated by vibration, shake correction means for moving the shake correction lens in a direction substantially perpendicular to the optical axis direction, and delay for setting a time delay mode for performing shutter release operation after a predetermined time has elapsed from the release operation It is characterized by comprising mode setting means and control means for controlling the shake correction means so as not to operate when the delay mode setting means is set to the time delay mode.

A second solving means is the same as the first solving means, further comprising a shake detecting means for detecting a shake occurring in a direction substantially perpendicular to the optical axis direction, and the control means has the delay mode setting means. When the time delay mode is set, the shake detecting means is controlled so as not to detect shake.

A third solving means is the first or second solving means, further comprising a centering means for moving the shake correction lens from an initial position to substantially the center of the optical axis, and the control means is for the shake correction. When controlling the means so as not to operate, the centering means is operated.

A fourth solving means determines the shake correction means for moving the shake correction lens in a direction substantially perpendicular to the optical axis direction in order to correct the shake generated by the vibration, and whether or not the shake correction means operates. If the switching means to be selected, the centering means for moving the shake correction lens from the initial position to the approximate center of the optical axis, and the shake correction means are set not to operate by the switching means,
Control means for operating the centering means.

[0009]

In the first solving means, the shake correcting means does not operate when the time delay mode is set.
Therefore, the current consumption by the shake correction means in the time delay mode is eliminated. Further, in the second solving means, the shake detecting means does not operate when the time delay mode is set. Therefore, the consumption current due to the operation of the shake detection means is eliminated. In the third solving means, when the shake correcting means does not operate, the shake correcting lens is moved to substantially the center of the optical axis. Therefore, the shake correction lens is arranged at the reference position even when the shake correction means does not operate. In the fourth solving means, when the shake correcting means is set not to operate by the switching means, the shake correcting lens is moved to the substantially center of the optical axis by the centering means. Therefore, the shake correction lens is arranged at the reference position even when the shake correction means does not operate.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the shake correction camera according to the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an embodiment of a shake correction camera according to the present invention. The taking lens system consists of four lenses 9, 10,
It is composed of 11 and 12. During focusing, the four lenses 9, 10, 11, 12 are collectively driven in the optical axis direction. In addition, at the time of shake correction, the lens 11
Only (hereinafter referred to as "correction lens 11") is driven in a direction substantially perpendicular to the optical axis direction (X-axis (horizontal) direction and Y-axis (vertical) direction).

The CPU 1 is a one-chip microcomputer and controls the entire sequence of the camera. CPU
Reference numeral 1 has a counter function, a timer function for measuring time, an A / D conversion function, and the like. A main switch 15, a half-press switch 16, a release switch 17, a self switch 18, a changeover switch 20, a distance measuring circuit 2 and a photometric circuit 19 are electrically connected to the CPU 1.

The main switch 15 is a switch for starting the operation of the camera and has an on position and an off position,
Once set to the on position, the state of the on position is maintained until it is returned to the off position again. Half-push switch 16
Is a switch that is turned on by pressing the release button halfway. The release switch 17 is a switch that is turned on by fully pressing the release button. The self-switch 18 is a switch for selecting a self-timer mode (hereinafter referred to as “self-mode”). Here, whether or not the self mode is selected is displayed on a display unit (not shown) such as an LCD. The changeover switch 20 is a switch for manually changing whether or not to perform the image stabilization process. The distance measuring circuit 2 is a circuit for performing distance measuring processing. The photometric circuit 19 is a circuit for performing photometric processing.

Further, the CPU 1 has a camera shake detection circuit 3,
4, motor drive circuits 5 and 6, and lens position detection circuit 1
3 and 14 are electrically connected. Further, motors 7 and 8 are connected to the motor drive circuits 5 and 6, respectively. The camera shake detection circuits 3 and 4 are sensors that detect the angular velocities in the X-axis and Y-axis directions generated by camera shake, respectively, and output values according to the magnitude of the angular velocities. The CPU 1 A / D-converts this output value, X-axis, Y-axis
Detects the amount of camera shake in the axial direction.

The CPU 1 issues a drive direction signal to indicate the drive direction, and further issues a drive duty signal to indicate the drive speed. The motor drive circuits 5 and 6 duty-drive the motors 7 and 8 in accordance with these signals. The rotations of the motors 7 and 8 are converted into linear motions by a drive mechanical system (not shown), and the correction lens 11 is moved in the X-axis and Y-axis directions so as to cancel the camera shake.

The lens position detection circuits 13 and 14 detect the position (movement amount) of the correction lens 11 in the X-axis and Y-axis directions, and depending on the movement amount of the correction lens 11 in the X-axis and Y-axis directions. Output pulse signal. The CPU 1 reads the position and movement amount of the correction lens 11 in the X-axis and Y-axis directions by counting the number of pulses of this pulse signal. Further, the moving speeds in the X-axis and Y-axis directions are calculated from the moving amount per fixed time.

FIG. 2 is a flow chart showing an embodiment of the operation of the shake correction camera according to the present invention. This flowchart is executed by a program built in the CPU 1. Power is turned on, main switch 15
When is turned on, the process is started in step 200.
First, in step 201, the inside of the CPU 1 is initialized. Next, the process goes through the loop of steps 202, 203 and 204, and waits for the half-push switch 16 to be turned on, the self switch 18 to be turned on, or the main switch 15 to be turned off. Half-press switch 16 in step 202
When is on, the process proceeds to step 205 and the photographing process is started. When the self switch 18 is turned on in step 203, the process proceeds to step 206 and the self setting process is started. Main switch 1 in step 204
When 5 is turned off, the process proceeds to step 207, and the process ends.

FIG. 4 is a flow chart showing an embodiment of the self-setting process in step 206 of FIG. When the self setting process is started in step 400, first, in step 401, it is determined whether or not the self mode is already set. If already set, the routine proceeds to step 402, where the self mode is cleared (released). On the other hand, when the self mode is cleared, the routine proceeds to step 403, where the self mode is set. That is, when the self switch 18 is turned on, the self mode is cleared when the self mode is already set, and the self mode is set when the self mode is released. Next, in step 404, when it is confirmed that the self-switch 18 is turned off, the process returns from step 405 to the flowchart of FIG.

FIG. 3 is a flow chart showing an embodiment of the photographing process in step 205 of FIG. First, when the photographing process is started in step 300, the process proceeds to step 301, and it is determined whether or not the self mode is set. When the self mode is cleared, the routine proceeds to step 302, where the camera shake detection circuits 3 and 4 are activated. Here, the camera-shake detection circuits 3 and 4 are not activated immediately before the camera-shake correction process (step 313) but are activated at this stage in order to stabilize the camera-shake detection circuits 3 and 4 by activating them early. is there. Also, step 301
If the self-mode is set in step 3,
After passing 02, the process proceeds to step 303. In this way, the camera shake detection circuits 3 and 4 are not activated in the self mode because the camera shake correction processing is not performed in the self mode, so that current consumption due to the operation of the camera shake detection circuits 3 and 4 is eliminated.

In the next step 303, the distance measuring process by the distance measuring circuit 2 is executed, and in the next step 304, the light measuring process by the light measuring circuit 19 is executed. Then, in step 305, the taking lens systems 9 to 12 are driven to predetermined focus positions based on the distance measurement result of step 303.

Next, the routine proceeds to step 306, where it is determined whether the release switch 17 is on or off. When it is off, the routine proceeds to step 307 where it is determined whether the half-push switch 16 is on or off. Step 30 if on
Returning to step 6, when it is off, the process proceeds to the next step 308, the operations of the camera shake detection circuits 3 and 4 are stopped, and in step 309 the taking lens systems 9 to 12 are returned to the initial positions,
In the next step 310, the process returns to the flowchart of FIG. 2 (no shooting is performed).

When it is judged at step 306 that the release switch 17 is on, the routine proceeds to step 311, where it is judged if the self mode is set. When the release switch 17 is turned on and the self mode is not set, the routine proceeds to step 312, where normal shooting is executed.

In step 312, centering processing of the correction lens 11 is executed. That is, the correction lens 11
Is driven to the reference position at the center of the optical axis. Correction lens 11
Are arranged at positions (ends) deviated from the center of the optical axis in the initial state. This is because 1) the stroke amount when driving the correction lens 11 is secured, 2) the lens position detection circuits 13 and 14 detect only the movement amount of the correction lens 11, and 3) the correction lens 11 is at the end. It is based on the reason such as contacting and keeping it stable.

Then, in the next step 313, the camera shake correction process is started. That is, based on the output results of the camera shake detection circuits 3 and 4, the correction lens 11 is moved in a direction substantially perpendicular to the optical axis direction so as to cancel the shake, and the shake is corrected. When the camera shake correction process is started, the shutter opening / closing operation is performed. In step 314, the shutter is opened, and in the next step 315, the exposure is waited for a predetermined exposure time based on the photometric result of step 304.
The shutter is closed at 6. Then step 317
The camera shake correction process is stopped by. Next, in step 318, the operations of the camera shake detection circuits 3 and 4 are stopped, and step 31
Proceed to 9.

On the other hand, in step 311, if the self mode is set when the release switch 17 is turned on, the process proceeds to step 322, and the self mode photographing is executed. In step 322, 1
Waiting for 0 seconds is performed. Here, the time counting timer function of the CPU 1 measures the time for 10 seconds. When this time measurement ends, the process proceeds to step 323 and step 312
The centering process of the correction lens 11 is executed in the same manner as the above process. The centering processing of the correction lens 11 is performed even in the self mode in which the camera shake correction processing is not performed, because the initial position of the correction lens 11 is displaced from the optical axis center as described above, and therefore the correction lens 11 is driven to the reference position of the optical axis center. This is because the shooting is performed after that. Therefore, by this centering process, a good shooting result can be obtained even in the self mode.

Next, in steps 324 to 326, the shutter opening / closing operation is performed as in steps 314 to 316. When the shutter is closed in step 326,
Proceed to next step 319.

In step 319, the taking lens systems 9 to 1 are used.
2 is returned to the initial position on the optical axis (return processing), and the correction lens 11 is returned to the initial position in which it abuts on the end portion.
When it is confirmed that the half-push switch 16 is off in the next step 320, the process proceeds to step 321 and returns to the flowchart of FIG.

FIG. 5 is a flow chart showing another embodiment of the photographing processing according to the present invention. 5, steps that perform the same processes as those in the flowchart of FIG. 3 are denoted by the same reference numerals, and redundant description will be omitted. When the changeover switch 20 for selecting the image stabilization mode is OFF in step 501, step 302 is skipped and steps 303 to 305 are performed without activating the camera shake detection circuits 3 and 4.
Process. Next, when the release switch 17 is on in step 306, it is determined in step 511 whether the changeover switch 20 is on or off, and when it is off, the process proceeds to step 323 to perform the centering process of the correction lens 11. In this way, the centering process of the correction lens 11 is performed even when the image stabilization mode is not selected, and a good shooting result is obtained.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment,
Various modifications are possible without departing from the spirit of the invention. For example, in the embodiment, the shake correction camera having the so-called single self mode in which one frame is photographed after 10 seconds has been described, but the shake correction camera having the continuous self mode in which a plurality of frames are continuously photographed at a predetermined time interval is also described. The invention can be applied. Further, in the embodiment, the time is measured for 10 seconds in the self mode, but the present invention is not limited to this value.

[0029]

According to the shake correction camera of the first aspect, the shake correction process is not performed when the time delay mode is set. Therefore, the shake correction process is rationally performed to save the power consumption. Can be planned. Further, in the shake correction camera according to the second aspect, since the shake detecting means is not operated when the time delay mode is set, it is possible to further reduce the power consumption. Claim 3 or 4
In the shake correction camera described in (1), since the centering process of the shake correction lens is executed even when the shake correction process is not performed, the optical system is arranged at a predetermined position,
Normal shooting results can be obtained.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of a shake correction camera according to the present invention.

FIG. 2 is a flowchart showing an embodiment of the operation of the shake correction camera according to the present invention.

FIG. 3 is a flowchart showing an embodiment of a photographing process in step 205 of FIG.

FIG. 4 is a flowchart showing an example of self-setting processing in step 206 of FIG.

FIG. 5 is a flowchart showing another embodiment of the photographing process according to the present invention.

[Explanation of symbols]

1 CPU 2 Distance measuring circuit 3,4 Camera shake detection circuit (X axis, Y axis) 5,6 Motor drive circuit (X axis, Y axis) 7,8 Motor (X axis, Y axis) 9, 10, 11, 12 Photographic lens system (11 correction lens) 13,14 Lens position detection circuit (X axis, Y axis) 15 Main switch 16 Half-press switch 17 Release switch 18 Self switch 19 Photometric circuit 20 Changeover switch

Claims (4)

[Claims]
1. A shake correction unit for moving a shake correction lens in a direction substantially perpendicular to an optical axis direction to correct shake generated by vibration, and a time delay for performing a shutter opening operation after a predetermined time has elapsed from a release operation. A delay mode setting unit that sets a mode; and a control unit that controls the shake correction unit not to operate when the delay mode setting unit is set to the time delay mode. Image stabilization camera.
2. The shake detecting means according to claim 1, further comprising shake detecting means for detecting shake occurring in a direction substantially perpendicular to the optical axis direction, wherein the control means sets the delay mode setting means to the timed delay mode. If so, the shake correction camera is controlled so that the shake is not detected by the shake detecting means.
3. The centering means for moving the shake correction lens from an initial position to substantially the center of the optical axis according to claim 1, wherein the control means controls the shake correction means so as not to operate. In some cases, the shake correction camera is characterized by activating the centering means.
4. A shake correction means for moving a shake correction lens in a direction substantially perpendicular to the optical axis direction to correct shake generated by vibration, and a switching means for selecting whether or not the shake correction means is activated. Centering means for moving the shake correction lens from the initial position to substantially the center of the optical axis, and control for actuating the centering means when the switching means is set so as not to operate An image stabilization camera, comprising:
JP536194A 1994-01-21 1994-01-21 Shake correction camera Pending JPH07209686A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP536194A JPH07209686A (en) 1994-01-21 1994-01-21 Shake correction camera

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP536194A JPH07209686A (en) 1994-01-21 1994-01-21 Shake correction camera
US08/377,066 US5659807A (en) 1994-01-21 1995-01-23 Vibration compensation camera having reduced power consumption in a self-timer mode and a bulb mode

Publications (1)

Publication Number Publication Date
JPH07209686A true JPH07209686A (en) 1995-08-11

Family

ID=11609043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP536194A Pending JPH07209686A (en) 1994-01-21 1994-01-21 Shake correction camera

Country Status (1)

Country Link
JP (1) JPH07209686A (en)

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