JP2540908B2 - Camera operation control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a camera operation control device 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 The present applicant previously proposed a camera capable of so-called zoom continuous shooting for continuously shooting a number of images.

C. Problems to be Solved by the Invention However, in this already proposed zoom continuous shooting camera, when shooting is started in the zoom continuous shooting mode by operating the release button, the release button must be operated during zoom continuous shooting. Even if you stop it, continuous shooting will continue until shooting of a predetermined number of frames is completed, so even if the photographer wants to stop zoom continuous shooting for some reason during zoom continuous shooting I can't stop it, and undesired pictures are taken.

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

D. Means for Solving Problems Explaining with reference to FIG. 1 (a) which is a diagram corresponding to claims, the operation control device for a camera according to claim 1 interlocks with the operation of the release operation member 101 to perform shutter release. Release signal output means 102 for outputting a release signal to instruct
Driving means 104 for driving the taking lens 103 for zooming, zoom continuous shooting mode setting means 105 for setting the zoom continuous shooting mode, and taking lens 103 in response to the release signal output when the zoom continuous shooting mode is set. The zoom continuous shooting means 106 for performing continuous shooting with a predetermined number of frames while sequentially changing the focal length of the zoom continuous shooting to a predetermined position, and setting of the zoom continuous shooting mode when a zoom continuous shooting cancellation signal is output during zoom continuous shooting The control means 107 suspends only the operation of the zoom continuous shooting means without canceling, and maintains the zoom continuous shooting mode setting even after the operation of the release operation member is released.

According to the second aspect of the present invention, instead of driving the taking lens to perform zooming, instead of printing the entire area of the film screen, a part of the area is enlarged and printed. This is for zooming. Therefore, the invention of claim 2 is provided with the imprinting means 204 for imprinting the trimming mark TM used at the time of printing for the pseudo zooming on the margin of the film FI, and the zoom continuous shooting means 106 when the zoom continuous shooting mode is set,
In response to the release signal output, zoom continuous shooting is performed in which a predetermined number of frames are continuously shot while sequentially changing the trimming mark TM to sequentially change the pseudo zooming magnification.

 Furthermore, claims 1 and 2 may be combined.

E. Action If, for example, the release operation is canceled and the release signal disappears during continuous shooting by the zoom continuous shooting means 106, a zoom continuous shooting cancel signal is output and the control means 107 interrupts zoom continuous shooting. At this time, even if the half-pressing operation of the release operation member 101 is released, the setting of the zoom continuous shooting mode is not released. Therefore, if the release operation member 101 is continuously operated without operating the zoom continuous shooting setting means 105 again, the zoom continuous shooting is performed. Is executed.

F. Embodiment One embodiment of the present invention will be described with reference to FIGS.

In Figure 2, control the sequence of the entire camera
A distance measuring circuit 2, a photometric circuit 3, an exposure control circuit 4 and a motor drive circuit 5 are connected to the CPU 1, respectively, and a focusing motor 6, a zooming motor 7 and a film winding motor 10 are connected to the motor drive circuit 5. . 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. Furthermore, CPU1
Obtain the exposure value based on photometric information and film sensitivity,
This exposure value drives and controls an exposure control member (not shown) through the exposure control circuit 4 to perform photographing, and after the exposure, the motor 10
To wind the film.

Further, switches SW1 and SW2 that are interlocked with the operation of a release button (release operation member) (not shown) are connected to the CPU1. The switch SW1 turns on when the release button is pressed halfway, and the switch SW2 turns on when the release button is pressed fully. 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. This switch SW3 is turned on in conjunction with the operation of the zoom continuous shooting mode setting button (not shown), and the CPU1 switches SW3
Is turned on to set the zoom continuous shooting mode, and at the same time, the LCD 8 is displayed via the display circuit 9.

When the continuous zoom mode is set, the CPU 1 continuously shoots a predetermined number of frames while sequentially changing the focal length of the shooting lens to a predetermined value 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, if the switch SW1 is also turned off during the continuous zoom shooting, the continuous zoom mode is temporarily stopped while the continuous zoom mode is maintained. Therefore, when the switches SW1 and SW2 are turned on again by operating the release button, continuous zoom shooting is performed.

In this embodiment, the focal length of the taking lens is set to 35 mm, 50 mm, depending on the release signal output when the zoom continuous shooting mode is set.
It shall be changed to 80mm in sequence and shooting shall be performed at each position.
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, according to the flowcharts in FIGS. 3 and 4, the CP
The control procedure by U1 will be described.

FIG. 3 shows an example of a procedure for setting and canceling the zoom continuous shooting mode, which is executed by turning on the switch SW3. First, in step S51, it is determined whether or not the zoom continuous shooting mode is already set. If the result is negative, the zoom continuous shooting mode is set in step S52, and the count value K of the zoom continuous shooting counter is reset in step S53. Next, in step S54, it is determined whether or not the switch SW3 is on, and if it is on, this step S54
Stays at, and if off, returns to other procedure. On the other hand, if step S51 is positive, the zoom continuous shooting mode is canceled in step S55, and the process proceeds to step S54.

Next, FIG. 4 shows a procedure executed by turning on the half-push switch SW1.

First, in step S2, the count value K of the zoom continuous shooting counter 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, in step S7 the focal length of the taking lens is set to 35 mm, K = 2
If so, step S8 to 50 mm, if K = 3, step
The value is set to 80 mm in S9, and the photographing lens is driven to the set focal length 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 take a picture, and in step S13, the motor 10 is driven to wind up one frame of film to advance 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, if it is determined that the full-press switch SW2 is turned off after the zooming in step S10, the process proceeds to step S18, and it is determined whether the half-press 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. In step S19, the count value K is set to zero and the procedure returns to another procedure. Even if the half-push switch SW1 is turned off, the zoom continuous shooting mode is still held.

As described above, in the present embodiment, the switches SW1 and SW2 are switched every time the photographing lens is moved to a predetermined focal length during continuous zooming.
If the switch SW2 is off, zoom continuous shooting is stopped. When the half-push switch SW1 is also turned off, the zoom continuous shooting counter is reset to zero without canceling the zoom continuous shooting mode, and the process is ended. Therefore, if the full-press switch SW2 is turned on, a predetermined number of frames will be shot by continuous zoom shooting, and if the release button is fully pressed and the switch SW2 is turned off during continuous zoom shooting, continuous zoom shooting will be performed. It can be canceled. At this time, if the switch SW1 is on, that is, if the release button is half-pressed, the continuous zooming is temporarily stopped but the count value is held, and the switch SW2 is pressed again by fully pressing the release button. When turned on, continuous zooming will continue from the number of interrupted frames.

Further, when both the switches SW1 and SW2 are turned off, the zoom continuous shooting is stopped and the count value is reset to zero, but the zoom continuous shooting mode is not released. That is, even when the composition during zoom continuous shooting is unfavorable and the half-press operation is canceled, there is often a desire to continue zoom continuous shooting. In this case, without operating the zoom continuous shooting button again, The continuous zoom operation can be performed from the beginning by fully pressing the release button.

Further, FIG. 5 shows a flowchart in which only step S19 of FIG. 4 is changed.

That is, when the half-press switch SW1 is turned off during shooting in which the zoom continuous shooting mode is set, the process proceeds from step S18 to step S21, the count value K is decremented by 1, and the procedure returns to another procedure.

According to this procedure, if the half-press switch SW1 is turned on while the zoom continuous shooting mode is set and the half-press switch SW1 is turned off while the processing of FIG. 5 is being executed, the zoom continuous shooting mode is maintained. The continuous zoom shooting is interrupted and the count value K is returned by 1. In this embodiment, since 1 is added to the count value before the continuous shooting with zooming, the count value is decremented by 1 to substantially hold the number of shooting frames at the time of interruption of continuous shooting with the counter. It
Therefore, with the continuous zoom mode, the focal length is 35 mm
When the half-press switch SW1 is turned off when shooting of only the frames is completed, the count value K is returned to 1. Therefore, when the half-press switch SW1 is turned on again and this procedure is executed, the focal length of 50 mm is selected. Then, the second frame of zoom continuous shooting is performed. According to this, the frame speed of the continuous zooming can be lengthened by the intention of the photographer, and the usability is improved.

FIG. 6 shows an embodiment in which the present invention is applied to a camera capable of so-called pseudo zooming.

Pseudo zooming is similar to zooming, for example, as disclosed in US Pat. No. 4,652,104, by not printing the entire shooting screen of one frame of film, but designating a specific area and enlarging and printing that area. Is what you get. For this purpose, it is necessary to imprint a mark called a trimming mark in the margin of the film at the time of photographing, and the imprinting device for the camera is built in. Then, printing is performed according to the trimming mark to form a pseudo zoomed photograph.

The one shown in Fig. 6 is for 35mm and 50mm bifocal cameras.
80mm pseudo zooming function is added, and the focal length of the taking lens is set on the first and second frames for continuous shooting with zoom.
Shoot with 35mm and 50mm, shoot with the focal length of 50mm for the third frame, and imprint trimming marks on the margin of the film so that the screen obtained with the focal length of 80mm is printed.

That is, when K = 3 is determined in step S6, the focal length is 80 m as trimming data in step S31.
m is set, and in step S32, the trimming mark is imprinted in the margin before exposure of the film. Then, after step S11, shooting is performed by the procedure shown in FIG.

FIG. 7 also shows an embodiment in which the present invention is applied to a camera capable of pseudo zooming. In this system, a single focal point, for example, a camera having a focal length of 35 mm is used to perform pseudo zooming with focal lengths of 50 mm and 80 mm.

That is, when K = 1 in step S6, the photographing is performed by the processing in step S11 and the subsequent steps. Step S
If K = 2 or K = 3 is determined in 6, in step S33 or S35, trimming data with a focal length of 50 mm or 80 mm is set, and in step S34, trimming marks are imprinted in the margins of the film. S1
It goes to 1 and later.

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 when the release button disappears An example in which a continuous shooting cancellation signal is output to suspend zoom continuous shooting has been described. However, when the shooting is started, the release button is fully pressed and released once, and the release signal is generated only once to generate the zoom continuous shooting. It may be something like starting a copy. In this case, for example, if the release button is operated again during zoom continuous shooting, a zoom continuous shooting cancel signal may be output. Alternatively, a zoom continuous shooting cancellation signal may be output by operating a separately provided interruption switch.

Furthermore, 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 preset in the camera has been shown, but the present invention is not limited to this, and these number of frames and the focal length can be changed from the outside by the operation member. The present invention can be applied to such a camera.

G. Effect of the Invention According to the present invention, during zoom continuous shooting, for example, when the zoom continuous shooting cancel signal is output due to disappearance of the release signal, the zoom continuous shooting is stopped. Moreover, for example, by releasing the hand from the release operation member, the continuous zoom shooting can be stopped at the will of the photographer, and an undesired photograph is prevented from being taken. At this time,
Since the setting of the zoom continuous shooting mode is continuously maintained, when the release signal is output again, the zoom continuous shooting can be performed from the first frame or the next frame interrupted last time, and the usability is improved.

[Brief description of drawings]

FIGS. 1 (a) and 1 (b) are complaint correspondence diagrams. 2 to 4 show an embodiment of the present invention, and FIG. 2 is a block diagram of a camera operation control device according to the present invention, and FIG.
4 and 5 are flowcharts showing the processing procedure, and FIGS.
FIG. 7 is a flowchart showing a modification of the processing procedure. 1: CPU, 4: Exposure control circuit 5: Motor drive circuit, 6, 7: Motor 101: Release operating member 102: Release signal output means 103: Photographing lens, 104: Driving means 105: Zoom continuous shooting mode setting means 106: Zoom continuous shooting means, 107: Control means 204: Imprinting means SW1 to SW3: Switches

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hidenori Miyamoto Inventor Hidenori Miyamoto 1-6-3 Nishioi, Shinagawa-ku, Tokyo Inside Nikon Oi Manufacturing Co., Ltd. (56) Reference JP-A-58-103273 (JP, A) Sho 62-135818 (JP, A)

Claims (7)

(57) [Claims] Claim: What is claimed is: 1. A release signal output means for outputting a release signal for instructing shutter release in association with an operation of a release operation member, a drive means for driving a photographing lens for zooming, and a zoom for setting a continuous zoom mode. A continuous shooting mode setting means, and a 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. When a zoom continuous shooting release signal is output during the zoom continuous shooting, only the operation of the zoom continuous shooting means is stopped without canceling the setting of the zoom continuous shooting mode, and the release operation member The operation control device for a camera, further comprising: a control unit that holds the setting of the zoom continuous shooting mode even if the operation is canceled. Place. 2. A release signal output means for outputting a release signal for instructing a shutter release in association with the operation of a release operation member, and an imprinting means for imprinting a trimming mark used at the time of printing for pseudo zooming on a margin of a film. A zoom continuous shooting mode setting means for setting a zoom continuous shooting mode; and, when the zoom continuous shooting mode is set, trimming marks are sequentially arranged to sequentially change the magnification of the pseudo zooming in response to the output of the release signal. Zoom continuous shooting means for performing continuous shooting with a predetermined number of frames while changing, and a zoom continuous shooting cancel signal is output during the zoom continuous shooting, the zoom continuous shooting mode is not canceled and the zoom is not released. Only the operation of the continuous shooting means is stopped, and even if the operation of the release operation member is released, the continuous zoom shooting is continued. An operation control device for a camera, comprising: a control unit that holds a mode setting. 3. The zoom continuous shooting canceling signal is output in response to cancellation of full-pressing and half-pressing of the release operating member, respectively. The operation control device for the camera according to the item. 4. The zoom continuous shooting means so that when the zoom continuous shooting is stopped by the zoom continuous shooting cancel signal, the zoom continuous shooting by the next operation of the release operation member can be performed from the first frame. The operation control device for a camera according to any one of claims 1 to 3, wherein 5. The zoom continuous shooting according to the operation of the next release operation member when the continuous zoom shooting is stopped by the zoom continuous shooting cancel signal so that the continuous zooming can be performed from the interrupted frame. An operation control device for a camera according to any one of claims 1 to 3, wherein the image capturing means is controlled. 6. The control device according to claim 4, further comprising a counter for counting the number of frames in the continuous zoom shooting, and resetting the counter when the continuous zoom shooting is stopped.
The operation control device for the camera according to the item. 7. The control means has a counter for counting the number of frames for continuous zooming, and holds the value of the counter at the number of frames for continuous zooming when the continuous zooming is stopped. The operation control device for a camera according to claim 5.