JPH07218966A - Shake correction camera - Google Patents

Abstract

PURPOSE:To reduce blurred photography even in the state of releasing a shake correction by arranging a switch button on an opposite side to a release button by interposing a photographing lens between the buttons. CONSTITUTION:This camera is provided with the shutter release button for releasing a shutter, a shake amount detection means 1 for detecting the shake amount of a camera, a shake correction means 4 correcting shake in accordance with a detection signal from the means 1, and a shake correction stopping switch SW3 for stopping the operation of the means 4. The switch SW3 is arranged on the opposite side to the shutter release button by interposing the photographing lens between them. The switch button constitutes the shake correction stopping switch SW3. Since the switch button is arranged on the opposite side to the release button by interposing the photographing lens between them, the camera must be necessarily held with both hands in the case of operating the switch button. Namely, in the shake correction released state, the camera is held with both hands so as to assist with the left hand.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image stabilization camera.

[0002]

2. Description of the Related Art In a conventional image stabilization camera, it is necessary to cancel the image stabilization operation when taking a picture by moving the camera largely. Therefore, an image stabilization switch is installed on a camcorder. Are known. This switch is a state switch for switching between shake correction cancellation and shake correction setting, and is provided at a place other than the holding portion of the camera.

[0003]

However, when the shake correction release switch is the state switch, there is a drawback that the switch is forgotten with the switch off. Further, when holding the camera with one hand during shooting in the shake correction canceled state, there is a possibility that a severely blurred image is taken.

The present invention has been made in view of such a situation, and an object thereof is to suppress camera shake as much as possible even in shooting in a shake correction released state.

[0005]

In order to achieve the above object, the present invention provides a shutter release button for shutter release, a blur amount detecting means for detecting a blur amount of a camera, and a detection signal of the blur amount detecting means. It is provided with a blur correction unit for performing blur correction in response to it, and a blur correction stop switch for stopping the operation of the blur correction unit, and the blur correction stop switch is arranged on the opposite side of the shutter release button with the photographing lens interposed therebetween. Has been done.

[0006]

In the image stabilization camera having the above structure, since the switch button is arranged on the side opposite to the release switch with the taking lens interposed therebetween, when holding the camera while operating the image stabilization switch, be sure to hold your left hand Must have. Since the left hand is attached and the camera is held by both hands in the image stabilization released state, camera shake can be suppressed as much as possible even in shooting in the image stabilization released state.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

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

FIG. 1 is a block connection diagram showing an embodiment of an image blur correction camera according to the present invention.

In FIG. 1, reference numeral 1 denotes a blur amount detecting means, which is a half push switch SW1 being turned on by half-pressing an operation member such as a release button 100 shown in FIG. The camera shake amount detection means 1 detects the camera shake amount of the camera body after a predetermined time. CPU
The circuit 2 is used as detection control means together with the release button 100 and the half-press switch SW1. Reference numeral 3 is a lamp used as a display unit, and a green lamp in the finder is used. The lamp 3 is also used to display the photometric result of the photometric means 7. The CPU circuit 2 includes the blur amount detecting means 1
Of the lamp 3 by the activation of the
Controls turning on or off.

The CPU circuit 2 judges the shutter time from the result of photometry by the photometric means 7, and when the shutter time is equal to or more than a predetermined value or when the switch SW3 is in the ON state, the release button 100 is half-depressed. When the shake amount detecting means 1 is activated, the lamp 3 blinks (first state). When it is determined that the camera shake amount of the camera body is smaller than the predetermined amount from the output signal of the shake amount detection means 1 after a predetermined time has elapsed, the CPU circuit 2 turns on the lamp 3 (second).
State). The blinking or lighting of the lamp 3 enables the photographer to determine whether or not the photographing is appropriate. The lamp 3 may be a lamp provided on the rear surface of the camera near the finder window instead of the lamp in the finder.

When the switch SW2 is turned on by fully pressing the release button 100 while the switch SW3 is in the on state, the CPU circuit 2 commands the shake correcting means 4 to perform correction in accordance with the detection output of the shake amount detecting means 1. . The blur correction unit 4 drives the drive system 5 of the photographing optical system L1 to correct the image blur. The distance measuring means 6 and the light measuring means 7 are known distance measuring means and light measuring means, and the CPU circuit 2 activates the distance measuring means 6 and the light measuring means 7 by half-pressing the release button 100. Upon activation, the distance measuring means 6 and the photometric means 7 start distance measurement or photometry, respectively.

The CPU circuit 2 commands the focusing control means 8 to perform an autofocus (automatic focusing) according to the output signal (distance measurement result) of the distance measurement means 6, and the focusing control means 8 drives the photographing optical system L2. And perform auto focus. In addition, according to the output signal (photometry result) of the photometric means 7, the exposure control means 10 is instructed to control the diaphragm, and the exposure control means 10 drives the diaphragm member 11 to control the diaphragm.

The switch button 101 shown in FIG. 2 constitutes the switch SW3 shown in FIG. 1. The switch SW3 is turned on while the switch button 101 is being pressed, and the switch S3 is turned on when the switch button 101 is released.
W3 is off. When the switch SW3 is on,
The blur correction unit 4 is based on the detection output of the blur amount detection unit 1.
Driving is prohibited. In this embodiment, this switch SW
Even when 3 is turned on, the operation of the blur amount detecting means 1 is not prohibited, and the blur amount is continuously detected. That is, when the switch SW3 is turned on, only the driving of the shake correction unit 4 is prohibited. This is because there is time until the blur amount can be detected after the blur amount detecting means 1 is activated.

FIG. 3 shows a state in which the photographer holds the camera in order to turn on the switch button 101. The switch button 101 is a switch button that constitutes the shake correction stop switch SW3. Since the switch button 101 is arranged on the opposite side of the release button 100 with the photographic lens in between, it is necessary to hold the camera with both hands when operating the switch button 101, and to suppress camera shake caused by stopping the shake correction operation as much as possible. be able to.

The structure of the shake correction stop switch SW3 is shown in FIG.
Shown in. 107 is a rubber, 105 is a camera cover, 10
2 is a conductive rubber, 106 is a printed wiring board, and 103 and 104 are conductors. When the rubber 107 is pushed, the conductor portion 103 and the conductor portion 104 are short-circuited by the conductive rubber 102, and the switch button 101 is turned on. When the pressing of the rubber 107 is stopped, the conductive force of the rubber 107 separates the conductive rubber 102 from the conductors 103 and 104, and the switch button 101 is turned off.

5 and 6 are flow charts for explaining the operation of the CPU circuit 2 in FIG.

In FIG. 5, when the program starts, it is determined whether the release button has been half pressed (switch SW1 is on). When the switch SW1 is on, the process proceeds to step S3, and when the switch SW1 is off, the process returns to step S1. In step S3, a battery check is performed, and when the predetermined voltage is ensured, the process proceeds to step S2A, and it is determined whether the shake correction control stop switch SW3 is on or off.
When the switch SW3 is off, the lamp is not displayed and the process proceeds to step S4. When the switch SW3 is on, the process proceeds to step S3, and the lamp 3 blinks at a frequency of 8 Hz.

In step S4, the blur amount detecting means 1 is activated, and in step S5, the distance measuring means 6 and the photometric means 7 are activated to perform distance measurement and photometry. In step S6, it is checked whether or not the distance measurement result output from the distance measuring means 6 is outside the focusing range Am. If it is outside the focusing range Am, focusing is impossible and the lamp 3 is turned off in step 7. In step 8, it is determined whether the release button has been pressed halfway (switch SW1 is on). When the switch SW1 is on, the process returns to step S7, and when the switch SW1 is off, the process returns to step S1 and waits for the half-press operation to be redone.

When it is determined in step 6 that the result of the distance measurement is within the focusing range Am, it is determined that focusing is possible, the process proceeds to step S9, and time counting is started. In step S10, the focusing control means 8 is instructed to perform autofocusing according to the distance measurement result, and the control means 8 moves the focusing optical system L2 to the focusing position via the drive system 9. In step S11, it is determined whether or not the count time has reached a predetermined time, and the process waits until the predetermined time is reached. When the predetermined time is reached, step S12
It is determined by pressing the release button halfway (switch SW1 is on). When the switch SW1 is on, the process proceeds to step S13, and when the switch SW1 is off, the process returns to step S1 to wait for the half-press operation to be redone.

In step S13, it is detected whether or not the release button is fully pressed (switch SW2 is turned on). When switch SW2 is off, the process proceeds to step S13A.
It is determined whether the switch SW3 is on. Switch SW
When 3 is on, the lamp 3 continues to blink at 8 Hz (step S13B), and the process returns to step S12. Switch SW
When the lamp 3 is off, the lamp 3 is turned off (step S13).
C), it is detected whether or not the blur amount detected by the blur amount detecting means 1 is smaller than the predetermined amount B (step S14). If the lamp 3 is blinking at 8 Hz in step S3 and the blurring amount is less than the predetermined amount B, the process proceeds to step 15 to switch the lamp 3 to the lighting state (second state) and returns to step 12. In step S14, when the blurring amount is equal to or larger than the predetermined amount B, the lamp 3 is blinked at 2 Hz and then the process returns to step S12.

When the process returns from step S15 to step S12, and the release button is still full-pressed without being fully pressed, steps S12 to S13 are performed.
If the detected blur amount is equal to or more than the predetermined amount B, the process proceeds to step 17, the lamp 3 is switched from the light-out state to the 2 Hz blinking state, and the step 1
Return to 2.

When the blur amount is less than the predetermined amount B, the lamp 3
If the photographer confirms that the lamp 3 is lit and presses the release button all the way while is on, the process proceeds from step 13 to step 18 by fully pressing (switch SW2 is turned on), Turn off the lamp 3 and step S1
At 8A, it is determined whether the switch SW3 is on. When the switch SW3 is on, the process proceeds to step S19A (FIG. 6) to center the blur correction lens group, and the process proceeds to step S20 to take an image (step S20). When the switch SW3 is off, step S18B (FIG. 6)
Shift to, centering the image stabilization lens group,
Shooting is performed after the shake correction drive is performed in step S19 (step S20).

In step 20, the exposure control means 10 is instructed to control the diaphragm according to the output of the photometry means 7 (photometry result). In response to this command, the exposure control means 10 causes the diaphragm member 1
1 is drive-controlled to control the exposure according to the aperture value, and a photograph is taken. In step S21, the exposure control means 10 is instructed to end the exposure control, and in step S22, the blur correction means 4 is instructed to stop the blur correction. In response to the command, the blur correction unit 4 stops driving the drive system 5 and the blur correction operation is stopped. In step 23, a film winding mechanism (not shown) is driven to wind one frame of film, and the program ends.

According to the embodiment described above, when the shake correction cancel switch is operated, more shake photographs may be taken than when the shake correction is set, but in this embodiment, it is necessary to hold with both hands. As a result, it is possible to reduce the blurring photograph as much as possible even in the blur correction canceled state.
Also, since the shake correction release switch is a self-return switch, it is easy to remember to return to the shake correction installation.

[0026]

As described above, according to the present invention, since the switch button is arranged on the side opposite to the release switch with the taking lens in between, the left hand must be held when holding the camera while operating the shake correction release switch. You must also have a camera. Since the left hand is attached and the camera is held by both hands in the shake correction canceled state, it is possible to suppress camera shake as much as possible even during shooting in the shake correction canceled state.

[Brief description of drawings]

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

FIG. 2 is a front view showing an embodiment of the image stabilization camera according to the present invention.

FIG. 3 is a front view showing an embodiment of the image stabilization camera according to the present invention.

FIG. 4 is a cross-sectional view showing an embodiment of a blur correction camera according to the present invention.

FIG. 5 is a flowchart showing an embodiment of a blur correction camera according to the present invention.

FIG. 6 is a flowchart showing an embodiment of a blur correction camera according to the present invention.

[Explanation of symbols]

 1 blur amount detecting means 2 CPU circuit 3 lamp 4 blur correcting means 5 drive system 6 distance measuring means 7 photometric means 8 focusing control means 9 drive system 10 exposure control means 11 aperture member 100 release button 101 switch button

Claims (3)

[Claims] 1. A shutter release button for performing a shutter release, a blur amount detecting means for detecting a blur amount of a camera, a blur correcting means for performing blur correction according to a detection signal of the blur amount detecting means, and the blur correction. A blur correction stop switch for stopping the operation of the means, wherein the blur correction stop switch is arranged on the opposite side of the shutter release button with the photographing lens interposed therebetween. 2. The blur correction camera according to claim 1, wherein the shutter release button is provided above the front of the camera, and the blur correction stop switch is provided below the front of the camera. 3. The blur correction camera according to claim 1, wherein the blur correction stop switch is a self-return switch.