JPH09288298A - Film feeding controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To exactly position at least a frame succeeding to a frame set in the case film is positionally deviated by vibration or impact at a photographing exposure position. SOLUTION: This controller is provided with photoreflectors PR1 and PR2. The photoreflector PR2 is arranged at a position specified distance away from the photoreflector PR1 in a film rewinding direction. In the case the photoreflector PR1 detects perforation before the photoreflector PR2 detects the perforation after starting winding the film (point (h) in figure (b)), the perforation detected by the photoreflector PR1 is neglected, and stop control is started at the time of detecting the perforation by the photoreflector PR1 after two perforations are detected by the photoreflector PR2 (point (k) in figure (b)).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film feeding control device for controlling film feeding based on perforations provided in association with each frame.

[0002]

2. Description of the Related Art Recently, a film having a unique perforation for positioning in each frame has been proposed. In cameras that use this type of film, a sensor is attached to each frame to detect the passage of perforations, and when the film is wound, the sensor detects a predetermined perforation. Must be stopped and the required frame must be controlled to be positioned at the shooting exposure position (shooting preparation position).

FIG. 9 (a) shows an example thereof. In the figure, 502 is a film, and the film 502 has 1
Two perforations P are provided for each frame F for which one exposure is scheduled. That is, perforations Pa and Pb are provided at the ends of the frame F in the winding direction and the rewinding direction. For example, perforations P1a (not shown) and P1b for frame F1, perforations P2a and P2b for frame F2, and frame F2.
3 is provided with perforations P3a and P3b (not shown).

Reference numeral 535 denotes a perforation detecting means provided in the camera, which is composed of a photo reflector or the like. Although the perforation detecting means 535 is actually arranged at a position facing the perforation P, it is drawn upward in FIG.

FIG. 9A shows a state in which the winding operation is completed, and a photographing opening (aperture) 5 provided in the camera.
24 faces the frame F2. That is, the frame F2 is located at the shooting opening (shooting exposure position) 524. In this state, the perforation P2a
Right end (opening end) and perforation detection means 5
35 is in a state of being shifted by Dr. This Dr is the amount by which the film 502 overruns when the perforation P2a is detected and stop control is performed as described later.

When filming is completed after filming,
The film 502 is fed from right to left in the figure. In the middle of this, the perforation detection means 535 detects two perforations P, that is, perforations P2b and P3a, and when the opening end of the second perforation P3a is detected, a winding motor (not shown). To stop. At this time, since the winding motor does not stop immediately, the film 502 stops due to the overrun of Dr described above. As a result, the frame F3 is positioned at the photographing exposure position 524 after the photographing of the frame F2 is completed.

[0007]

However, such a conventional film feeding control system has the following drawbacks. That is, when vibration or impact is applied to the camera in the state of FIG. 9A, the film 502 may move. For example, film 5 with a strong impact
02 is moved to the position of FIG. 9B, the frame F2
And the photographing exposure position 524 are displaced as shown in the figure.
In this case, in the conventional film feeding control method, the perforation detection unit 535 has two perforations P when winding the frame F2 after the photographing is completed.
The winding motor is stopped when is detected.

Therefore, the stop control of the film 502 is performed when the perforations P2a and P2b are detected from the state of FIG.
It stops in the state shown in (c). In this stopped state, the frame F3 and the photographing exposure position 524 are displaced as shown in FIG. As described above, the conventional film feeding control method has a drawback that when the position of the film 502 is displaced due to a shock or the like, the photographing position is displaced not only in that frame but also in all the subsequent frames. It was

The present invention has been made in order to solve such a problem, and its object is to take a picture at least for the subsequent frame when the position of the film is displaced due to vibration or shock. It is an object of the present invention to provide a film feeding control device which can be correctly positioned at the exposure position.

[0010]

In order to achieve such an object, the first invention (the invention according to claim 1) includes a winding driving means for driving a loaded film in a winding direction, and each of the films. First detection means provided at the first position for detecting the passage of perforations provided along with the frame, and passage of the perforations at a second position which is apart from the first position in the film rewinding direction by a predetermined distance. And a second detecting means for detecting the perforation, the first detecting means detects the perforation after the film is started to be wound by controlling the drive of the winding driving means and before the second detecting means detects the perforation. If this first
In addition to ignoring the perforations detected by the detection means, the winding drive means is stopped and controlled based on the perforations detected by the first and second detection means thereafter.

According to the present invention, for example, even if the first detecting means detects the perforation first after the film is started to be wound up due to the displacement of the film due to vibration or shock, the first detecting means detects the perforation. The generated perforations are ignored, and the winding drive means is stopped and controlled based on the perforations detected by the first and second detection means thereafter.

The second invention (the invention according to claim 2) is provided with a winding driving means for driving the loaded film in the winding direction, and in association with each frame of the film in the winding direction and the rewinding direction. First for detecting passage of the first and second perforations at a first position
And a second detection means for detecting passage of the first and second perforations at a second position which is a predetermined distance away from the first position in the film rewinding direction, and winding-up drive means. If the first detecting means detects the perforation before the second detecting means detects the perforation after the start of film winding by controlling the driving of the perforation, the perforation detected by the first detecting means is ignored. In addition, the stop control of the winding drive means is started at the time when the perforation is detected by the first detecting means after the two perforations are detected by the second detecting means.

According to the present invention, for example, even if the first detecting means detects the perforation first after the film is started to be wound due to the displacement of the film due to vibration or shock, the first detecting means detects the perforation. The generated perforations are ignored, the stop control of the winding drive means is started at the time when the first detection means detects the perforations after the second detection means detects the two perforations, and the next frame is captured correctly. Located at the exposure position.

The third invention (the invention according to claim 3) is the second invention.
In the invention, when the first detecting means detects the perforation before the second detecting means detects the perforation after the film is started to be wound by controlling the drive of the winding drive means, the first detection Second, ignoring the perforations detected by the means
When the perforation is detected by the first detecting means after one perforation is detected by the detecting means, the winding drive means is stopped and controlled.

According to the present invention, the position of the film shifts due to vibration or shock, and even if the first detecting means detects the perforation first after the film starts to be wound, it is detected by the first detecting means. The perforation is ignored, and the stop control of the winding drive means is performed at the time of detecting the perforation by the first detecting means after one perforation is detected by the second detecting means, and the automatic control after the final frame photographing is performed. Rewinding processing becomes possible.

The fourth invention (the invention according to claim 4) is the second invention.
In the invention or the third invention, after the film is started to be wound by controlling the driving of the winding driving means, one perforation is detected by the second detecting means, and then 2
When the perforation is detected by the first detecting means before the th perforation is detected,
The film is rewound by controlling the drive of the rewinding drive means.

According to the present invention, after the film is started to be wound, the first detecting means detects the perforation and the second detecting means detects the perforation, and the second detecting means detects the perforation. When is detected, the rewinding process is automatically started.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail based on embodiments. FIG. 2 is a view showing the structure of the film used in the camera according to the present invention, which is the cartridge 101.
It shows a state in which a part of the film 102 that has been wound inside is pulled out. The film 1002 is provided with two perforations P for each frame F scheduled to be exposed once. For example, for frame F1, perforations P1a and P1b are
For 2, perforations P2a and P2b are provided.

FIG. 3 schematically shows a part of the mechanism of a camera using the film 102 and the cartridge 101. In FIG. 3, the cartridge 101,
Film 102, perforations P2a, P2b
Is the same as in FIG. Reference numeral 221 is an aperture portion of the camera, 224 is an aperture for exposing an image of a subject on each frame F of the film 102, 222 is an upper rail for regulating the position of the film 102 in the optical axis direction, 2
Reference numeral 23 is also a lower rail. Reference numeral 231 is a pressure plate of the camera, and 232 and 233 are openings formed in the pressure plate 231.

Reference numerals 235 and 236 are photoreflectors, which are arranged directly opposite to the film 102 through the openings 232 and 233, respectively. Although the aperture portion 221, the film 102, and the pressure plate 231 are shown as separated in the figure, in reality, they are placed in a positional relationship where they are in close contact with each other with almost no gap, and the photo reflector 235 (first photo reflector) is a single point in the figure. As indicated by a chain line 401, the film 102 is arranged so as to detect the reflectance at the height position of the perforation P of the film 102 and the height position of the upper rail 222.

The photo reflector 236 (second photo reflector) is also at the same height position as the photo reflector 235, and the horizontal position is on the right side of the photo reflector 235. That is, the photo-reflector 236 is located at a position separated from the position where the photo-reflector 235 is arranged in the rewinding direction of the film 102 by a predetermined distance, and is indicated by an alternate long and short dash line 402 in the figure.
As shown in FIG.
Is arranged so as to detect the reflectance at the height position of the upper rail 222 and the height position of the upper rail 222.

Each of the photoreflectors 235 and 236 outputs "H" as a digital signal as an output when facing the upper rail 222 surface having a high reflectance at the opening of the perforation P of the film 102, and is opposed to the film surface. When performing, the position of the opening end of the perforation P is detected by outputting "L" of the digital signal as an output.

Reference numeral 201 denotes a spool (winding spool) for winding the film 102, and the film 102 moves in the winding direction by rotating the spool clockwise when viewed from above. A motor (winding motor) 211 gives a driving force to the rotation of the spool 201, and the both are connected by a driving force transmission system (not shown).

The shaft of the cartridge 101 is provided with a groove 101a, in which a fork (rewinding fork) 20 is formed.
2 are fitted together, and the fork 202 rotates counterclockwise when viewed from above, so that the film 102 is transferred to the cartridge 10.
While being caught in 1, it moves in the rewinding direction. A motor (rewinding motor) 212 gives a driving force to the fork 202, and the both are connected by a driving force transmission system (not shown).

FIG. 4 is a block diagram showing the electric circuit configuration of this camera. The MCU is a microcomputer. The photo reflector 235 (PR1) transmits one output to the interrupt port INT1 of the microcomputer MCU. The photo reflector 236 (PR2) transmits one output to the interrupt port INT2 of the microcomputer MCU. U1 is a motor driver circuit for driving the motor 211 (M1).
The motor 2 is driven by two signals from the U output ports T1 and T2.
11 (M1) is controlled in three states: energization, short circuit, and open.

U2 is a motor driver circuit for driving the motor 212 (M2). The motor 212 (M2) is energized, short-circuited or opened by two signals from the output ports T3 and T4 of the microcomputer MCU. To control. 237 is a non-volatile memory (EEPROM),
Two-way communication is performed with the port PBUS of the microcomputer MCU, and necessary data of the microcomputer MCU (such as a film counter value) is stored.

Next, the operation peculiar to this camera is shown in FIG.
Timing charts of (a) to (d), FIGS.
Flowcharts of (a) to (d), FIGS.
Further, description will be given with reference to the feeding state schematic diagrams of FIGS. The flowchart of FIG. 5 shows the flow of a program executed by the microcomputer MCU for the film winding operation which is performed after the exposure for photographing one frame is completed by using an unillustrated means. In this embodiment, the microcomputer MCU
It is assumed that the position of the film 102 is in the state of FIG.

In FIG. 7A, 102 is a film, F2 is the frame exposed immediately before, P2a, P2.
b is the two perforations of that frame F2. In this state, the photo reflector 235 (PR
1) is the right end of the perforation P2a (opening end)
The photo reflector 236 at a position displaced by Dr from
(PR2) is located at a distance Dp to the left from the left end (opening start) of the perforation P2b. In addition,
In this figure, the film winding direction means the direction in which the film 102 is fed from right to left. Reference numeral 224 denotes a photographing exposure position, which in this state coincides with the frame F2.

[Normal Operation: When Winding Non-Final Frame] When the start of the film winding process is instructed from this state, the microcomputer MCU causes the flag FWDFLG indicating that the film is being wound.
Is set to "1" (step S200 shown in FIG. 5), and is stored in the non-volatile memory 237. Next, the variable CNT2F is cleared to 0 (step S201), and the motor 211 (M
1) the normal rotation is started (step S202), and the time counting by the timer is started (step S20).
3). This time point corresponds to point a in the timing chart shown in FIG. Due to the normal rotation of the motor 211 (M1), the film 102 starts moving leftward from the position shown in FIG. 7A, and when the film 102 moves a distance Dp, the photoreflector 236 as shown at point b in FIG. 1A. The output signal of (PR2) rises.

Here, FIGS. 6A to 6D respectively show
Rising edge and falling edge of the input signal to the interrupt port INT1, rising edge of the input signal to the interrupt port INT2,
6 is a flowchart of interrupt processing executed by the microcomputer MCU upon detection of a falling edge, and CNT1 which is a storage variable of the number of inputs of each edge.
R, CNT1F, CNT2R, CNT2F are incremented by one and the process returns.

Therefore, when the fall of the output of the photo reflector 236 (PR2) is detected twice in step S204 of FIG. 5, that is, when the point c in FIG. 1 (a) is passed, the process proceeds to step S209. Here, FIG.
Until the point c in (a) is reached, steps S204 to S204
Moving to 205, it is checked whether the output of the photo reflector 236 (PR2) has once fallen. If it has not fallen once, the variable C is determined in step S207.
NT1R is reset to 0, and it is confirmed in step S208 whether the timer has exceeded 500 msec. Step S
At 208, if the timer exceeds 500 msec, B
Error processing (described later) is executed. If not,
It returns to step S204 and continues processing.

In step S205, the photo reflector 23
When the trailing edge of the output of 6 (PR2) is detected once, the process proceeds to step S206. Normally, as shown in FIG. 1A, it is desired to generate the rising edge of the output of the photo reflector 235 (PR1) until two falling edges of the output of the photo reflector 236 (PR2) are detected. Go to and repeat the above process.

The processes of steps S204 to S208 are repeated, and the film 102 is sent so that the aperture end of the perforation P3a is the photo reflector 236 (PR2).
The state opposite to is point c in FIG. At this time, the output of the photoreflector 236 (PR2) falls twice, so that the process proceeds from steps S204 to S209.
Then, in step S209, the variable CNT1R is cleared to 0.

Next, in step S210, time counting by the timer is started, and in steps S211 to S212, the rising edge of the output of the photo reflector 235 (PR1) is waited for. The rising edge of this output is 500ms
If ec does not come, the error processing of B is performed. When the rising edge of the output of the photo reflector 235 (PR1) comes (point d in FIG. 1A), step S
At 213, the value of the timer at that time is stored in the variable TPW,
In step S214, the motor 211 according to the value of TPW
PWM driving of (M1), that is, driving in which energization and short circuit are alternately repeated is performed to decelerate the rotation of the motor 211 (M1).

The purpose of this PWM drive is as shown in FIG.
By measuring the passage time from point c to point d in (a) and changing the duty ratio of the PWM drive according to the value, a certain stop position is secured even when the battery voltage changes. .

After the PWM driving is started, the variable CNT1F is set to 0.
(Step S215), the timer starts counting time (step S216), and step S216
From 217 to S218, the photo reflector 235 (PR
Wait twice for the falling edge of the output in 1). If the falling edge of this output does not come after waiting for 500 msec, error processing of B is performed. Photo reflector 235
If the falling edge of the output of (PR1) comes twice (point e in FIG. 1A), the motor 2 is output in step S219.
11 (M1) is short-circuited, and steps S220 to S221
Then, after the state is continued for 20 msec, the motor 211 (M1) is opened in step S222 (point f in FIG. 1A).

Thereafter, the film counter FCNT is incremented by 1 in step S223, the flag FWDFLG indicating that the film is being wound is reset in step S224, and the process is terminated. By the above operation, the film 102 is wound up by one frame from the state of FIG.
The state of (b) is reached, and the next frame F3 and the photographing exposure position 224 coincide.

[Operation at Abnormality: When Winding Up Non-Final Frame] Next, the operation when the film 102 moves due to the influence of vibration or shock will be described. If the camera is dropped while the camera is loaded with a film, a strong impact may be applied, resulting in the position of the film moving. This is caused by the tension applied to the film and the stress remaining in the winding gear.

For example, suppose that the film 102, which should originally be in the state of FIG. 7A, has moved to the position of FIG. 7C by Dq due to an impact. When winding is performed from this state, normally, as described above, the photoreflector 236 (PR2) should output two pulses first, and then the photoreflector 235 (PR1) should output two pulses, but the photoreflector 235 ( PR1)
Output of 1 pulse from. In this embodiment,
Even under such a condition, the film 10 will be in the normal position.
The following processing is performed so that 2 is rolled up.

That is, when winding is started from the state of FIG. 7C, the output waveforms of the photoreflectors 235 (PR1) and 236 (PR2) are as shown in FIG. 1B. The processing in this case will be described with reference to the flowchart of FIG. The microcomputer MCU starts the normal rotation of the motor 211 (M1) in step S202 (g in FIG. 1B).
point). Then, the variable CNT1R at the point h in FIG.
The variable CNT1F is incremented at point i. However, the processing at this time is performed in step S in FIG.
Since the process proceeds from step 201 to step S207 through step S205, the photo reflector 2 that has been used up to that point in step S207.
Variable C due to rising edge of output of 35 (PR1)
The count value of NT1R is reset.

Then, the process returns from step S208 to S204 to continue the winding. After that, when the point j in FIG. 1B is passed, the determination in step S205 is affirmative, and the process proceeds to step S206.
Since the number of rising edges of the output of 35 (PR1), that is, the value of the variable CNT1R has already been reset to 0 in step S207, step S206 is denied and the process proceeds to step S207. PWM drive from point k to point l in FIG.
A short circuit is made from point m to point m, the film 102 stops at the position shown in FIG. 7B, and the next frame F3 and the photographing exposure position 224 coincide.

That is, according to this embodiment, the photo reflector 236 (PR2) is used for the perforation P.
When the photoreflector 235 (PR1) detects the perforation P before the detection, the photoreflector 236 (PR1) ignores the perforation P detected by the photoreflector 235 (PR1).
Since the stop control of the motor 221 (M1) is started at the time when the perforation P is detected by the photoreflector 235 (PR1) after the two perforations P are detected by 2), when the winding is completed, the motor 221 (M1) is stopped at the same correct position as usual. The film 102 will stop.

The photo reflector 235 (PR1)
CNT1F that counts the falling edges of the output of
Is a step S before the step S217 in which it is used.
Since it is reset at 215, the edge at point i does not adversely affect.

Further, the process shown as B in FIG. 5 is a process when the winding is impossible due to some reason during the winding and the process times out. In this case, the motor 211 (M1) is stopped (opened), and then the "Err" mark is made to blink on the display device (not shown), for example.

[Normal Operation: When Winding Up the Last Frame] Next, when the film 102 reaches the end,
That is, the process when the final frame is taken up and then rolled up will be described. There is no next frame in the last frame. That is, in FIG. 8A, when the frame F24 is the final frame, the next frame F25 does not exist. Therefore, when the film is rolled up after the final frame is photographed, the photo reflector 235
The outputs of (PR1) and 236 (PR2) are shown in FIG.
(C). In this case, the process of FIG. 5 is as follows.

That is, after the start of winding in step S202, when the point n in FIG.
The determination of 05 is affirmed, and the process proceeds to step S206. FIG.
Until the point o in (c) is reached, step S206 is denied, so the processing of returning from step S207 to step S208 and then to step S204 is repeated to continue winding. When the vehicle has passed point o, step S206 is affirmed and the process proceeds to step S230. In step S230, the motor 211 (M1) is opened, and in step S231, the flag FWDFLG indicating that the film is being wound is reset, and the process proceeds to "film rewinding". In the film rewinding process, the motor 212 (M2) is normally rotated to rewind the film 102 into the cartridge 101.

[Operation at Abnormality: When Winding Up the Final Frame] Next, in the final frame, in the same manner as described above.
The operation when the film position moves due to a shock or the like will be described. The state of the film 102 at this time is shown in FIG.
Shown in In this case, assuming that the frame F24 is the final frame, the next frame F25 does not exist. Therefore,
When the film is wound after the final frame is photographed, the outputs of the photo reflectors 235 (PR1) and 236 (PR2) are as shown in FIG. In this case, FIG.
The processing is as follows.

After the start of winding in step S202, as shown in FIG.
The variable CNT1R at point p in (d) and the variable CNT1 at point q
Each F is incremented. However, since the processing at this time proceeds from step S204 to step S207 of FIG. 5 to step S207, the count value of the variable CNT1R due to the falling edge of the output of the photo reflector 235 (PR1) up to then is reset in step S207. . Then, steps S208 to S204
Return to and continue winding.

After that, when the point r in FIG. 1D is passed, the determination at step S205 is affirmative, and step S2 is performed.
Although the process proceeds to 06, the number of falling edges of the output of the photo reflector 235 (PR1), that is, the value of the variable CNT1R has already been reset to 0 in step S207, so step S206 is denied and step S207 is performed.
Go to step S208, and then step S20.
The process of returning to step 4 is repeated to continue winding.

If point s in FIG. 1 (d) has been passed, step S206 is affirmed and step 230 is proceeded to.
In step S230, the motor 211 (M1) is opened,
Flag F indicating that the film is being wound in step S231
WDFLG is reset to shift the processing to film rewinding. In the film rewinding process, the motor 212
(M2) is rotated in the forward direction to load the film 102 into the cartridge 1
Rewind into 01.

That is, according to this embodiment, the perforation P by the photo reflector 236 (PR2) is increased.
When the photoreflector 235 (PR1) detects the perforation P before the detection, the photoreflector 236 (PR1) ignores the perforation P detected by the photoreflector 235 (PR1).
Since the motor 221 (M1) is stopped and controlled at the time when the perforation P is detected by the photo reflector 235 (PR1) after one perforation P is detected by 2), the rewinding process is automatically performed after the final frame shooting. Will be executed.

In the above processing, the rising edge may be detected when the falling edge is detected and the processed, when the same result is obtained. The same applies to the opposite case. In addition, in this embodiment, the photo reflectors 235 (PR1), 236.
Although the interrupt processing by the edge of the output of (PR2) is used, the states of the photo reflectors 235 (PR1) and 236 (PR2) are monitored at regular intervals, and the same processing is performed when the state changes. Good.

[0053]

As is apparent from the above description, according to the present invention, the position of the film is displaced due to, for example, vibration or impact, and after the film is started to be wound, the first detecting means first detects the perforation. In this case, the perforation detected by the first detecting means is ignored, and the winding driving means is stopped and controlled based on the perforations detected by the first and second detecting means thereafter, and at least after that. With respect to the frame, it is possible to correctly position the frame at the shooting exposure position, and it is also possible to perform an automatic winding process after the shooting of the final frame, thereby improving the reliability of the camera.

[Brief description of drawings]

FIG. 1 is a timing chart of each unit controlled by a specific processing operation performed by a microcomputer MCU.

FIG. 2 is a diagram showing a configuration of a film used in a camera according to the present invention.

FIG. 3 is a diagram schematically showing a part of a mechanism of a camera that uses the film and the cartridge shown in FIG.

FIG. 4 is a block diagram showing an electric circuit configuration of this camera.

FIG. 5 is a flowchart showing a specific processing operation performed by the microcomputer MCU.

FIG. 6 is a flowchart of an interrupt process performed by the microcomputer MCU.

FIG. 7 is a schematic diagram for explaining an operation of the film controlled by the microcomputer MCU in a normal state and in an abnormal state (when winding up a non-final frame).

FIG. 8 is a schematic diagram for explaining the operation of the film under normal and abnormal conditions (when winding the final frame) controlled by the microcomputer MCU.

[Fig. 9] Normal operation and abnormal operation of the film by the conventional control method (when winding the non-final frame)
It is a schematic diagram for explaining.

[Explanation of symbols]

101 ... Cartridge, 102 ... Film, F ... Frame, P ... Perforation, 201 ... Winding spool, 202 ... Rewinding fork, 211 (M1) ... Winding motor, 212 (M2) ... Rewinding motor, 221
... Aperture part, 222 ... Upper rail, 223 ... Lower rail, 224 ... Aperture, 231, ... Pressure plate, 232, 2
33 ... Opening portion, 235 (PR1) ... Photo reflector (first photo reflector), 236 (PR2) ... Photo reflector (second photo reflector), MCU ... Microcomputer, U1, U2 ... Motor driver circuit, 237 ... Non-volatile memory (EEPROM).

Claims (4)

[Claims] 1. A winding-up drive means for driving a loaded film in a winding-up direction, and a first detection means provided in association with each frame of the film for detecting passage of perforations at a first position. Second detection means for detecting passage of the perforation at a second position which is a predetermined distance away from the first position in the rewinding direction of the film; and the film by controlling the drive of the winding drive means. When the first detecting means detects the perforation after the start of winding of the film and before the second detecting means detects the perforation, the perforation detected by the first detecting means is ignored, and thereafter the perforation is detected. The winding drive means is stopped based on the perforations detected by the first and second detection means. A film feeding control device comprising: a winding control means. 2. A winding drive means for driving a loaded film in a winding direction, and a passage of first and second perforations provided in the winding direction and the rewinding direction associated with each frame of the film. First detection means for detecting at a first position, and detection of passage of the first and second perforations at a second position separated from the first position by a predetermined distance in the rewinding direction of the film. Second detection means and a case where the first detection means detects the perforation after the film winding is started by controlling the drive of the winding drive means and before the second detection means detects the perforation. , Ignoring the perforations detected by the first detecting means,
And a winding control means for starting stop control of the winding drive means at the time point when the first detection means detects the perforations after the two detection means have detected two perforations. Transmission control device. 3. The winding-up control means according to claim 2, further comprising the step of starting the winding of the film by controlling the drive of the winding-up drive means and before the second detection means detects the perforation. When the first detecting means detects the perforation, the perforation detected by the first detecting means is ignored, and the first detecting means after one perforation is detected by the second detecting means. The film feeding control device is characterized in that the winding drive means is stopped and controlled at the time of detection of perforation. 4. The rewinding drive means for driving the loaded film in the rewinding direction according to claim 2 or 3,
After starting the film winding by controlling the drive of the winding driving means, the first detecting means detects one perforation, and the second detecting means detects the first perforation. And a rewinding control unit for rewinding the film by controlling the drive of the rewinding drive unit when the perforation is detected by the detection unit.