JPH0712985Y2 - Camera motion controller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to an operation control device for a camera capable of so-called zoom continuous shooting in which shooting is performed by changing the focal length of each frame.

B. Conventional Technology For example, by operating the operating members such as the zoom continuous shooting button to set the zoom continuous shooting mode and then pressing the release button, the focal length of the zoom lens is sequentially changed to a predetermined value A camera capable of so-called zoom continuous shooting, which shoots a number of images continuously, has been proposed.

C. Problems to be solved by the invention However, when shooting is started in the zoom continuous shooting mode, continuous shooting is continued until shooting of a predetermined number of frames is completed. Even if the photographer wants to cancel the zoom continuous shooting for some reason during the continuous shooting, it cannot be stopped, and an undesired photograph is taken.

An object of the present invention is to provide an operation control device for a camera, which allows the continuous shooting of a zoom to be stopped at the will of the photographer.

D. Means for Solving the Problems Referring to FIG. 1, which is a diagram corresponding to the claims, the operation control device for a camera according to the present invention includes a shutter operating member 101.
Release signal output means 102 for outputting a release signal for instructing shutter release in conjunction with the operation, drive means 104 for driving the taking lens 103 for zooming, and zoom continuous shooting mode setting means for setting the zoom continuous shooting mode. 105
When the zoom continuous shooting mode is set, a zoom continuous shooting means 106 for performing continuous shooting with a predetermined number of frames while sequentially changing the focal length of the taking lens 103 to a predetermined position in response to the output of a release signal, and a zoom When a zoom continuous shooting cancel signal is output during continuous shooting, the control means 10 for stopping the zoom continuous shooting
7 and 7.

Further, the control unit 107 may cancel the zoom continuous shooting mode setting when the zoom continuous shooting is interrupted.

E. Action When the release operation is canceled and the release signal disappears during continuous shooting by the zoom continuous shooting means 106, the zoom continuous shooting cancel signal is output, and the control means 107 interrupts the zoom continuous shooting.

In addition, the zoom continuous shooting mode is released when the zoom continuous shooting is released.

F. Embodiment An embodiment of the present invention will be described with reference to FIGS. 2 and 3.

In Figure 2, the CP that controls the sequence of the entire camera
The distance measuring circuit 2, the photometric circuit 3, the exposure control circuit 4, and the motor drive circuit 5 are connected to U1, respectively, and the motor drive circuit 5 is connected.
A focusing motor 6, a zooming motor 7, and a film winding motor 18 are connected to the. The distance measuring circuit 2 calculates and outputs distance measuring information regarding the distance to the subject, and the photometric circuit 3 calculates and outputs luminance information regarding the luminance of the subject. The CPU 1 calculates the lens movement amount for focusing based on the distance measurement information, and drives the photographing lens by the motor 6 via the motor drive circuit 5 by this lens movement amount to perform focusing. Further, the CPU 1 drives and controls an exposure control member (not shown) through the exposure control circuit 4 based on the photometric information to perform photographing, and after exposure, the motor 18
To wind the film.

The CPU 1 is also connected with switches SW1 and SW2 that are interlocked with the operation of a release button (shutter operation member) (not shown). With the release button half-pressed, switch SW1 turns on,
Switch SW2 turns on when the switch is fully pressed. The CPU 1 activates the distance measuring circuit 2 and the photometric circuit 3 by turning on the switch SW1, and activates the motor drive circuit 5 and the exposure control circuit 4 in response to the release signal output by turning on the switch SW2.

Further, the display circuit 9 of the liquid crystal display (LCD) 8 and the zoom continuous shooting mode setting switch SW3 are connected to the CPU 1. The switch SW3 is turned on in association with the operation of a zoom continuous shooting mode setting button (not shown), and the CPU 1 sets the zoom continuous shooting mode by turning on the switch SW3 and displays a message to that effect on the LCD 8 via the display circuit 9. To do.

When the zoom continuous shooting mode is set, the CPU 1 sequentially shoots a predetermined number of frames while sequentially changing the focal length of the shooting lens to a predetermined position by the zooming motor 7 via the motor drive circuit 5. Further, when the switch SW2 is turned off during zoom continuous shooting, that is, when the zoom continuous shooting cancel signal is output, the CPU 1 cancels the zoom continuous shooting mode. Further, when the switch SW1 is turned off during continuous zooming, the zoom continuous shooting mode is canceled when the shooting of one frame is completed.

In this embodiment, the focal length of the taking lens is set to 35 mm, 50 mm, 80 mm according to the output of the release signal when the zoom continuous shooting mode is set.
It is assumed that the shooting is performed at each position by sequentially changing to. That is, three frames are continuously photographed.

In the configuration of the above embodiment, the full-press switch SW2 is the release signal output means 102, the motor drive circuit 5 and the motor 7 are the drive means 104, the switch SW3 and the CPU1 are the zoom continuous shooting mode setting means 105, the CPU1 and the exposure. The control circuit 4 constitutes the zoom continuous photographing means 106, and the CPU 1 constitutes the control means 107.

Next, the procedure of control by the CPU 1 will be described with reference to the flowchart of FIG.

First, in step S1, it is determined whether the halfway press switch SW1 is on. If the determination is negative, the process remains in step S1 until an affirmative determination is made, and if the determination is positive, the process proceeds to step S2. In step S2, the count value K indicating the number of times of continuous zooming is set to zero. Next, in step S3, the photometric information from the photometric circuit 3 and the ranging information from the ranging circuit 2 are read, and the process proceeds to step S4. In step S4, it is determined whether or not the zoom continuous shooting mode is set. If the determination is affirmative, the process proceeds to step S5, and if the determination is negative, the process proceeds to step S11.

In step S5, 1 is added to the count value K, and then in step S6 the value of the count value K is determined. If K = 1, the focal length of the taking lens is set to 35 mm in step S7, if K = 2, it is set to 50 mm in step S8, and if K = 3, step S9.
Is set to 80 mm and the photographing lens is driven to the focal length set by the motor 7 via the motor drive circuit 5 in step S10. That is, zooming is performed.

Next, in step S11, it is determined whether or not the full-press switch SW2 is turned on, and if an affirmative determination is made, the process proceeds to step S12. In step S12, focusing is performed based on the read distance measurement information, and the exposure control circuit 4 is controlled based on the photometric information, film sensitivity information, and lens brightness information (F value information) according to the set focal length. An exposure control member (not shown) is driven to shoot an image, and in step S13, the motor 18 is driven to wind up one frame of film and the process proceeds to step S14. In step S14, it is determined whether or not the zoom continuous shooting mode is set, and if a negative determination is made, step S17
When the determination is affirmative, the count value K is reached in step S15.
Is 3 is determined. If a negative determination is made in step S15, the process returns to step S3 and the processes from step S3 are repeated. If a positive determination is made in step S15, the zoom continuous shooting mode is canceled in step S16 and the process proceeds to step S17. In step S17, it is determined whether or not the halfway press switch SW1 is turned on. If the determination is affirmative, the process remains in step S17 until a negative determination is made, and if the determination is negative, the process ends.

On the other hand, if step S11 is denied, that is, step S11
When it is determined that the full-push switch SW2 is off after zooming in 10, the process proceeds to step S18, and it is determined whether the half-push switch SW1 is on. If the determination is affirmative, the process returns to step S11, and if the determination is negative, the process proceeds to step S19. A step S19 decides whether or not the zoom continuous shooting mode is set. If a negative decision is made, the processing is ended, and if a positive decision is made, it is decided at step S20 whether or not the count value K is 1. If step S20 is affirmed, the process is terminated, and if not, the zoom continuous shooting mode is canceled and the process is terminated in step S21.

As described above, during zoom continuous shooting, the states of the switches SW1 and SW2 are detected each time the photographing lens is moved to a predetermined focal length, and if the switch SW2 is off, zoom continuous shooting is stopped. Further, when the half-press switch SW1 is also turned off, the zoom continuous shooting mode is canceled if the shooting has been performed for one frame in the zoom continuous shooting mode. Therefore, if the full-press operation of the release button is released during continuous zoom shooting, continuous zoom shooting can be stopped.

Also, even if the switch SW2 is off when the shooting lens moves to the predetermined focal length, if the switch SW1 is on, that is, if the release button is half-pressed, the continuous zoom shooting is temporarily interrupted. When the switch SW2 is turned on by fully pressing the release button again, continuous zoom shooting is continued.

Further, even if both the switches SW1 and SW2 are turned off, if one frame is not photographed at this time, the continuous zoom shooting is stopped, but the continuous zoom shooting mode is not released.
In other words, even if the photographer half-presses the release button to perform continuous zoom shooting, but the composition after zooming is unfavorable and the half-press operation is canceled, he / she still has the intention to continue continuous zoom shooting. In this case, zoom continuous shooting can be performed by fully pressing the release button without operating the zoom continuous shooting button again.

Further, FIG. 4 shows a flowchart in which the processing procedure of FIG. 3 is partially modified. In the figure, the judgment branching process of step S30 is inserted after the negative judgment is made in step S15. In this step S30, the distance measurement and photometry are performed again as shown in FIG. 3 each time each frame is photographed during zoom continuous shooting (negative determination in step S30), or the distance measurement and photometry at the first photography without re-execution. Do you want to take subsequent shots with information (step S3
This is a process of making a decision branch of a positive decision of 0). Which one is branched depends on whether or not the focus lock mode is set in advance by operating a focus lock switch (not shown) provided on the camera.

In this embodiment, a release signal is output while the release button is fully pressed, and continuous zooming is executed by the release signal. When the release button disappears and the release signal disappears, the zoom continuous shooting is performed. An example has been shown in which an image release signal is output to suspend zoom continuous shooting. However, even if the release button that is output at that time starts zoom continuous shooting by fully pressing and releasing the release button once Good. In this case, for example, when the release button is fully pressed again during zoom continuous shooting, the zoom continuous shooting cancel signal may be output.

Further, in the above, the example in which the number of frames and the focal length at the time of continuous shooting with the zoom are set in advance in the camera has been shown, but the present invention is not limited to this, and the number of frames and the focal length are externally set by the operation member. The present invention can be applied to a camera that can be changed.

G. Effect of the Invention According to the present invention, during continuous zoom shooting, for example, when a continuous zoom release signal is output due to disappearance of the release signal, the continuous zoom stop is stopped. Further, for example, by releasing the hand from the shutter operating member, the continuous shooting with the zoom can be stopped at the will of the photographer, and an undesired photograph is prevented from being taken.

[Brief description of drawings]

FIG. 1 is a claim correspondence diagram. 2 and 3 show an embodiment of the present invention, FIG. 2 is a block diagram of a camera operation control device according to the present invention, FIG. 3 is a flowchart showing a processing procedure, and FIG. 4 is a processing procedure. It is a flowchart which shows the modification of. 1: CPU, 4: Exposure control circuit 5: Motor drive circuit, 6, 7: Motor 101: Shutter operation member 102: Release signal output means 103: Photographic lens, 104: Driving means 105: Zoom continuous shooting mode setting means 106: Zoom continuous shooting means, 107: Control means SW1 to SW3: Switches

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hidenori Miyamoto Inventor Hidenori 1-6-3 Nishioi, Shinagawa-ku, Tokyo Japan Optical Industry Co., Ltd. (56) Reference Japanese Patent Laid-Open No. 58-103273 (JP, A) Kaihei 1-123847 (JP, A)

Claims (3)

[Scope of utility model registration request] Claim: What is claimed is: 1. A release signal output means for outputting a release signal for instructing a shutter release in association with an operation of a shutter operation member, a drive means for driving a photographing lens for zooming, and a zoom for setting a continuous zoom mode. Continuous shooting mode setting means, and zoom continuous shooting for continuously shooting a predetermined number of frames while sequentially changing the focal length of the taking lens to a predetermined position in response to the output of the release signal when the zoom continuous shooting mode is set. An operation control apparatus for a camera, comprising: a photographing means; and a control means for stopping the zoom continuous photographing when a zoom continuous photographing cancel signal is output during the zoom continuous photographing. 2. The utility model registration claim 1, wherein the zoom continuous shooting cancellation signal is output in response to disappearance of the release signal due to cancellation of operation of the shutter operating member. Camera motion control device. 3. The utility model registration claim 1, wherein the control means cancels the zoom continuous shooting mode by the zoom continuous shooting cancel signal and cancels the zoom continuous shooting mode. The operation control device for the camera according to.