JPH04311934A - Film feeder for camera - Google Patents

Abstract

PURPOSE:To provide a convenient camera capable of carrying out full image plane photographing and panoramic photographing alternately. CONSTITUTION:When a film is set in a camera, either one of frame number information by a manual setting means RSS and frame number information memorized in the camera is selected, and idle feed of the film is carried out up to a frame position according to this selected frame number information. As a result of this, setting of the frame number information can be carried out optionally by the manual setting means RSS, so that the nonprocess feed of the film can be carried out freely.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to a film feed device for a camera that feeds a film to a predetermined frame position when reloading a film that has been taken out halfway without photographing the final frame. It is.

0002

[Prior Art] Generally, in a laboratory, the distinction between printing a negative in full screen or panoramic processing is as follows:
This is done on a film-by-film basis. In other words, even if normal shooting and panoramic shooting are mixed on one film, all the frames will be printed in either full screen or panoramic screen, resulting in a print that goes against the photographer's will.

In order to prevent this, a switch for switching between full-screen photography and panoramic photography is placed inside the back cover, allowing switching of the photography mode only when changing the film. The film is rewound each time the shooting mode is changed, and to reuse the rewound film, the film must be rewound to the unexposed area.

0004

[Problem to be Solved by the Invention] However, when panoramic shooting and full screen shooting are often used by switching between them while rewinding in the middle, the task of rewinding and skipping forward is extremely troublesome. was there.

The present invention was developed in view of this situation, and when the film is used for full-screen shooting and panoramic shooting by alternately rewinding and replacing the film, it automatically skips forward to the unexposed area. This provides a device that can move the pieces to the pieces set by the user at other times.

[0006]

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a manual setting means for setting frame number information for blank feeding of film by manual means, and a manual setting means for setting frame number information for blank feeding of the film by manual means, and and a selection means for selecting one of the information and the frame number information stored in the camera. Specifically, a photographed frame number storage means for storing the number of completed frames, a manual setting means for manually setting frame number information for the blank feed of the film, and a frame number information set by the manual setting means; selection means for selecting either one of the frame number information stored in the photographed frame number storage means;
and a second photographing method selection means for selecting one of at least two types of photographing methods, and a photographing type storage means for storing whether the loaded film is the first type of photographing or the second type of photographing. The type of frame number information selected by the selection means is determined in accordance with the output of the shooting type storage means.

[0007]

[Operation] When film is loaded into the camera, one of the frame number information set by the manual setting means and the frame number information stored in the camera is selected, and the frame position based on the selected frame number information is Sent empty-handed. As a result, the number of pieces information can be set arbitrarily by manual setting means.
Film can be freely fed.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram of an apparatus to which an embodiment of the present invention is applied. In the figure, 1 is a control unit that controls the entire device, 2 is a display unit that displays various types of information, 3 is a film information detection unit that detects ISO information (film sensitivity information, etc.), and 4 is a film information detection unit that detects ISO information (film sensitivity information, etc.). A storage unit (memory) that stores read information, 5 a feeding unit that feeds the film, and 6 detects the amount of film feeding by counting signals generated as the sprocket that follows the film rotates. This is a feeding amount detection unit.

MSW is a main switch for turning on the system that constitutes the camera, MUS is a switch pressed during manual turn, RSS is a mode selection switch for mode selection, S1 is a measurement switch pressed during photometry and distance measurement, S2 is the shooting switch that is pressed when shooting, S3 is the camera back switch that is always on and turns off when the camera back is closed, ZUS is the frame count up switch that is operated when counting up the number of frames, ZDS SP is a frame number countdown switch that is operated when counting down the number of frames, and SP is a panoramic shooting switch that is turned on when set in conjunction with the panoramic shooting setting device 7.

Reference numeral 7 denotes a panoramic photography setting device, which forms a panoramic aperture and switches the viewfinder field of view.

[0011] In addition to the normal 4-frame fast feed, this device is provided with the following two fast feed modes by operating each switch. That is, there is provided an arbitrary amount skipping mode called a manual skip mode and a predetermined amount skipping mode called an autoskip mode, and it is possible to feed frames according to each of these modes.

[0012] In the arbitrary amount jump feed mode, the user sets the number of frames to feed, and in the predetermined amount jump feed mode, the camera memorizes the previous predetermined number of frames and adjusts the number of frames to this stored number. The frame is automatically advanced based on the following information. That is, when reloading a film that has been used two times before and has been rewound halfway, it is automatically fed to a predetermined frame position.

[0013] This is done in consideration of the fact that users often use ISO 100 and ISO 400 films alternately by rewinding them midway through and replacing them. This is adapted to the situation where it is necessary to alternately rewind the tape and replace it during use.

[0014] For this reason, the storage unit 4 stores the history of the films used before and last time. That is, the number of frames N1 of the film taken two times before is stored in the frame number memory area M1 for the time before the previous time, the ISO information of the film taken for the time before the last time is stored in the ISO memory area for the time before the last time, and the number of frames N1 of the film shot the time before the time before the last time is stored in the panorama memory area for the time before the last time. Information regarding whether or not the data is rejected is stored respectively.

[0015]Furthermore, the previous frame number memory M2 stores the number of frames N2 of the film shot last time, the previous ISO memory area stores the ISO information of the previous film, and the previous panorama memory area stores the number of frames N2 of the film shot last time. Information on whether or not is stored is stored.

In the case of manual U-Turn, in which the unexposed portion is left and rewound, a predetermined value is stored in each memory for the number of frames, but in the case of Auto U-Turn, in which the frame is photographed and rewound until the last frame, the number of frames is The number memory value is 0.

[0017] In the normal mode for normal shooting (meaning the shooting mode as opposed to the fast feed mode, and not the normal full screen mode as opposed to the panorama mode), each time the mode selection switch RSS is pressed, Mode selection is performed in the order of skip mode, continuous shooting mode, and normal mode.

FIG. 2 is an explanatory diagram illustrating the display state of the display unit 2. FIG. 2(a) shows a state in which everything is displayed, and 10 is a skip mark indicating the skip mode, 11 is a continuous shooting mark indicating that it is in continuous shooting mode,
12 is a frame number display that displays the number of frames, and 13 is a panorama mark that lights up when the panorama mode is set. In addition, Figure 2 (
b) to (e) show the states when the camera is in each operation mode, the details of which will be described later.

FIG. 3 is a flow chart for explaining the operation of this device. When the back cover of the camera is closed and the switch S3 is turned from on to off, normal fast feed processing is performed at step 200, but at this time the display on the display section 2 is in an off state. When it is detected in step 201 that the main switch MSW is turned on, step 20
2, the normal mode is set and the number of frames "1" is displayed on the display section 12 as shown in FIG. 2(b).

Thereafter, in step 203, if the mode selection switch RSS is not detected to be on for 3 seconds or more, it is determined that normal photography is being performed, and normal processing is performed in step 204.

[0021] In step 203, the mode selection switch RS
When it is detected that S is on for 3 seconds or more, it is determined that the skip mode is set, and in step 205, the skip mode is set and the skip mark 10 is displayed on the display unit 2.

Then, in step 206, it is determined whether the mode selection switch RSS is off, and in step 208, it is determined whether C=B, that is, the ISO of the film used last time.
It is determined whether information B matches the ISO information of the film to be used this time. If they do not match, it means that the ISO has changed, so in step 209 it is determined whether the film has been auto-turned two times before. This judgment is made by detecting whether the frame number memory M1 from the previous time is 0 or not.

In other words, if the film has not been auto-skipped two times before, it is a film that has been rewound halfway, so the number of frames "N1" photographed two times before is set and displayed on the frame number counter as shown in step 220, and the auto-skip is performed. Performs mode processing. In this case, the user can compare in advance the number of frames he or she has assumed with the result stored in the camera.

In step 208, C=B, that is, “IS
If it is determined in step 216 that the panorama switch SP is on, that is, panorama setting is in progress, it is determined in step 217 whether P=0. That is, if it is determined that P=0, the previous time was full screen shooting and the process returns to step 209; otherwise, the process returns to step 210.
Move to. Here, P is a memory indicating whether or not panoramic shooting was performed last time, with P=0 indicating a full screen and P=1 indicating a panoramic screen.

If SP is not on in step 216, full screen photography is being performed this time, and in this case, it is determined in step 218 whether P=1. In other words, it is determined whether the previous shooting was a panorama or not, and if it was a panoramic shot, go to step 209, and if it was not a panoramic shot, go to step 210.
to move to.

If it is determined in step 209 that the film has been auto-turned, all frames have been photographed and there are no unexposed frames, so there is no need to skip them. However, manual skipping is enabled in case you want to skip a film other than the previous auto U-turn. In other words, when in manual skip mode, Figure 4
Perform the manual skip mode transition process shown in . In other words, the counter is set to "0" and the process proceeds to a subroutine for arbitrary amount idle feed processing, which will be described later.

In each of the manual skip mode and the auto skip mode to be described later, no photographing operation is performed even if the photographing switch S2 is pressed.

If it is determined in step 209 that the auto turn mode is not in effect, the process in the auto skip mode shown in FIG. 5 is performed. In the autoskip mode, as described above, the number of frames shot is displayed on the counter 12, but when it is determined in steps 221 and 222 that the measurement switch S1 and the shooting S2 are on, it is determined that autoskip has started, and the film is will be continuously fed up to the set value.

To do this, first, in step 223, the value of the frame number counter is returned to "1" and displayed, as shown in FIG. 2(d), and then in step 224, the film feeding and frame number The process of counting up the number of frames is automatically performed and the value of this frame number is displayed, and in step 225 it is determined whether the film has been fed to the 36th frame in the case of a 36-shot film. When the value of the frame number counter becomes, for example, 36 and this value is also displayed on the display section 12, the feeding of the film is stopped in step 226 and the skip mark is turned off, and then in step 227 the automatic Execute U-turn processing and exit.

If the fed film does not reach the end position in step 225, step 230 determines whether the value of the frame number counter is equal to "N1+1", that is, the number of photographed frames plus 1. make a judgment. In order to prevent frame duplication, the frame is fed to a frame position equal to the number of photographed frames plus 1.

[0031] If this number of pieces is not reached, step 224
When the above number is reached, the film feed is stopped and the skip mark is turned off in step 231, the skip execution is memorized in step 232, and the I/O process is executed in step 233. =C (I is the ISO information storage area, C is the current ISO information), M1=M2, that is, the previous ISO information and frame number information are stored in the memory area before the previous one.

[0032] Then, the auto-turn processing described later,
In addition to storing the current frame number information in the previous memory area, which is done in the manual turn process, normal processing such as photographing processing, which will be described later, is executed in step 234 in preparation for the next film loading.

If it is not possible to detect that the measurement switch S1 is turned on in step 221, and if it is detected that the frame count up switch ZUS is turned on in step 240, then in step 241 the frame number counter is set to "N1+1" and displayed. section 12. If it is detected in step 242 that the frame number count-up switch ZUS is off, then in step 243 the process proceeds to arbitrary amount blank feeding processing.

Although it was not detected in step 240 that the frame count up switch ZUS was turned on, in step 25
If it is determined that the frame number countdown switch ZDS is on at 0, then in step 251 the frame number counter is set to "N1-".
1'' is set and displayed on the display unit 12, and then in step 252, when it is determined that the frame number countdown switch ZDS is off, the processing from step 243 onwards is executed.

If it is not detected in step 250 that the frame number countdown switch ZDS is on, it is determined in step 260 that the mode switch RSS is on, and if this is on, the frame number counter is set to "1" in step 261. '', the skip mark is turned off, and then in step 262 the continuous shooting mark is turned on, and in step 263 it is determined whether the mode switch RSS is off. When it is detected in step 263 that the mode switch RSS is turned off, continuous shooting mode processing, which will be described later, is executed in step 264.

If it is not detected in step 260 that the mode switch RSS is on, it is determined in step 270 that the main switch MSW is off, and if it is in the on state, the process returns to step 221, but if it is detected that it is off,
In step 271, the system is turned off and the display is turned off.

FIG. 6 is a flowchart illustrating the detailed operation of the arbitrary amount jump processing shown in steps 212 and 243 described above. When it is determined in step 300 that the frame count up switch ZUS is on, the frame count up switch ZUS is turned on. In step 301, it is determined whether or not the value of the frame number counter is equal to "36" (in this case, it is assumed that the film has 36 exposures). If this value is equal to 36, it is impossible to increase the counter any further, so the counter is returned to "0" in step 301a, and the process proceeds to step 303 to execute the countdown process. However, if it is not equal to 36 in step 301, A count-up operation is performed in step 302, and then, in step 303, it is determined whether the frame number count-up switch ZUS is turned off. That is, when the ZUS is turned on, the counter is set in a loop in the order of 0→1→...35→36→0→1...

When the off state of the frame count up switch ZUS is detected in step 303, it is determined in step 304 whether the on state of the frame count down switch ZDS is detected, and if this on is not detected, the process proceeds to step 3.
It returns to 00 and again determines whether the frame count up switch ZUS is on.

When it is detected in step 304 that the frame number countdown switch ZDS is on, a countdown process is performed. First, in step 305, it is determined whether or not the value of the piece number counter is 0. If this value is 0, it is impossible to set a value less than 0, so step
In step 5a, the counter is set to "36" and the process moves to step 307. If this value is not 0, a countdown operation is performed in step 306, and when it is detected in step 307 that the frame number countdown switch ZDS is off, the process returns to step 300. In other words, the counter in ZDS is 0 → 36 → 35 →...
...2→1→0→36... A loop-like setting can be made.

[0040] In this way, the frame is set by manual operation at the position to be photographed, and photographing processing is performed during normal processing to be described later.

If it is not detected in step 300 that the frame count up switch ZUS is on, step 31 is performed.
If it is 0, it is determined that the frame number countdown switch ZDS is on, and if this is detected, the frame is reversely fed, and the process moves to step 305, where processing such as countdown is performed. If it is not detected that the frame number countdown switch ZDS is on, it is determined in step 311 that the mode switch RSS is on, and if this is on, the skip mark is turned off and the continuous shooting mode is turned on in step 312, and then in step 313. The frame number counter is set to "1" in step 314, and it is determined in step 314 whether the mode switch RSS is turned off. When this is turned off, in step 315, a continuous shooting mode process is executed in which photography is performed from the frame set in the above process, that is, from the first frame.

Further, when the switch mode switch RSS is in the off state in step 311, it is determined in steps 320a and 320b whether the measurement switch S1 and the photographing switch S2 are on, and when the measurement switch S1 is off, the process proceeds to step 300. Returning, when the shooting switch S2 is on, the counter is checked in step 320c, and if this is other than 0, manual skip is performed, and step 321 is performed.
The number of pieces set in the number of pieces counter is stored in the memory. Next, in step 322, the frame number counter is returned to "1" and this display is displayed on the display section 2, and in step 323, the film is fed to a position corresponding to the stored number of frames, and at the same time the number of frames is counted up. . If the counter is "0" in step 320c, the process returns to step 300 without skipping.

Then, in step 324, the terminal position is detected and judged, and when the terminal position is reached, step 326 is performed.
The feeding is stopped at step 327, and then an auto-turn process is performed at step 327. Also, if the end position is not reached in step 324, the counter is set to ``set+'' in step 325.
1", that is, the value of the counter is equal to the value set in memory plus "1". If the value of the frame number counter does not reach this value, the process returns to step 323 and continues feeding, but if it reaches this value, Return from subroutine.

Next, FIG. 7 is a flowchart illustrating normal processing. First, in step 400, it is determined whether the mode switch RSS is off. Note that this judgment of turning off the mode switch RSS may involve executing normal processing when turning off of the mode switch RSS is not detected in the flowcharts such as those shown in FIG. This is used to determine whether the signal is off or not.

When the mode switch RSS is turned off in step 400, it is determined in step 401 whether the switch S1 is turned on, and when it is turned on, photometry and distance measurement processing is performed in step 402, and in step 403, the photographing switch S2 is turned on. to judge. In step 403 switch S2
If on is not detected, the process returns to step 401, and when on is detected, the switch S is turned on in step 404.
2 is performed, and normal photographing processing is executed in step 405.

If it is not detected in step 401 that the switch S1 is on, then in step 410 it is detected that the mode switch RSS is on, and when it is turned on, the memory is referred to in step 411 to determine whether or not the skip has been executed. After making this determination, if it is determined that the capture has been completed, continuous shooting mode processing is executed in step 413.

If the skip has not been executed in step 411, it is determined in step 412 whether the switch S2 has been turned on, and if it is determined that the skip has been executed, the continuous shooting mode process is executed in step 413, and it is determined that the skip has been executed. If not, the process moves to step 205 in FIG. 3 to set the skip mode.

Further, in step 410, the mode switch R
If SS is not turned on, it is determined in step 420 whether the main switch MSW is turned off, and if it is on, the process returns to step 401, but if it is detected that the main switch MSW is turned off, the system is turned off in step 421. to turn off the display.

FIG. 8 is a flowchart illustrating the process of continuous shooting mode. In step 500, the mode switch RS is
Determine whether S is off. In addition, this mode switch RSS
In the flowchart of FIG. 7, the mode switch RSS is not turned off and this normal processing is executed, so the mode switch RS is turned off at the beginning of this process.
This is to determine whether S is off.

[0050] When the mode switch RSS is turned off,
Next, in step 501 it is determined whether the measurement switch S1 is on, and when it is turned on, photometric and distance measurement processing is performed in step 502, and in step 503 it is determined whether the photographing switch S2 is on. If it is not detected in step 503 that the photographing switch S2 is on, the process returns to step 501, and if it is detected that the photographing switch S2 is on, continuous photographing processing is executed in step 504.

If it is not detected in step 501 that the switch S1 is on, then in step 510 it is detected that the mode switch RSS is on, and when it is turned on, the normal process as described above is executed in step 511.

Further, in step 510, the mode switch R
If SS is not turned on, it is determined in step 512 whether the main switch MSW is turned off, and if it is turned on, the process returns to step 501, but if it is detected that the main switch MSW is turned off, the system is turned off in step 513. to turn off the display.

Next, FIG. 9 is a flowchart illustrating an auto-turn process for photographing to the end and rewinding. First, in step 601, M2=0, that is, the previous number of frames is set to 0, then in step 602, fullme rewinding is performed, and in step 603, it is determined whether rewinding is complete. Then, when the rewinding is completed, step 6
Film feeding is stopped at 04. Also, step 600
If the switch SEL is not detected to be on, the value of the memory M2 is not set to 0 and the value of the memory M2 is not set to 0, but the value of the previous manual turn is held as is.
Executes subsequent rewind processing.

FIG. 10 is a flowchart illustrating a manual turn process for rewinding the film while leaving the unexposed portion. First, in step 700, the previous memory M
2, the value of the frame number counter displayed on the display section 2 is set, and in step 701 the film is rewound, and then in step 702 it is determined whether the rewinding is complete. If the rewinding is not completed, the process returns to step 701 and the rewinding is performed, but when the rewinding is completed, step 703
Stop film feeding with .

As explained above, when the film skip feeding device according to the present invention determines that the loaded film is outside the conditions, it immediately shifts to the manual skip mode and manually skips any blank of the film. This allows the feed amount to be set. In this embodiment, the skip mode is selected by reading the ISO and panoramic information, but the switching may be performed by detecting changes between negative and reversal and panoramic information. Regardless of the ISO, discrimination may be made based only on panoramic changes.

[0056]

As explained above, according to the film feed device for a camera according to the present invention, when a film is loaded into the camera, the frame number information by the manual setting means or the frame number information stored in the camera is changed. By selecting one of the frames, the film is skipped forward to the frame position based on the selected frame number information, so the frame number information can be set arbitrarily using the manual setting means. can be freely fed, thereby preventing double exposure, and
This has the effect of providing the user with an easy-to-use camera.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of a film feed device for a camera according to the present invention.

[Figure 2] Diagram showing an example of display on the display unit

[Figure 3] Flowchart explaining the operation of this device

[Figure 4] Flowchart explaining manual skip operation

[Figure 5] Flowchart explaining autoskip operation

[Fig. 6] Flowchart explaining detailed operation of arbitrary amount blank feed processing

[Figure 7] Flowchart explaining normal processing

[Figure 8
] Flowchart explaining continuous shooting mode processing

[Figure 9]
A flowchart explaining the auto-turn process of shooting to the end and rewinding.

[Fig. 10] Flowchart explaining manual U-turn processing for rewinding while leaving unexposed portions.

[Explanation of symbols]

1 Control section 2 Display section 3 Film information detection section 4 Storage section 5 Feeding section 6 Feeding amount detection section 7 Panorama shooting setting device 10 Skip mark 11 Continuous shooting mark 12 Frame number display 13 Panorama mark MSW Main switch MUS Manual start switch RSS
Mode selection switch S1 Measuring switch S2 Shooting switch S3 Camera back switch ZUS Frame count up switch ZDS
Frame count countdown switch SP Panorama shooting switch

Claims (1)

[Claims] Claim 1: In a film feeder of a camera that performs blank feeding of a portion of a film that has been photographed when loading a loaded film that has not yet been photographed and another film alternately, a photographed frame that stores the number of frames that have been photographed. a manual setting means for setting frame number information for the blank feed of the film by a manual means, and a number of frames stored in the frame number information by the manual setting means or in the photographed frame number storage means; a selection means for selecting one of the information; a photographing method selection means for selecting at least two types of photographing methods, a first and a second; The present invention is characterized by comprising a photographing type storage means for storing the type of photographing, and a type of frame number information to be selected by the selection means in accordance with the output of the photographing type storage means. camera film feeder.