JPH0132969B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a photographing device for photographing documents of different lengths on a long sheet such as a film.

This type of photographic device generally displays the amount of film that has been photographed or the amount of film that has not been photographed, that is, the length of the unphotographed film that remains in front of the photographing section. I couldn't tell if I would be able to take a picture. If the length of the document to be photographed is constant, the amount of document to be photographed can be determined to some extent through experience from the amount of unphotographed film, but if the length of the document to be photographed is different, it is impossible to know at all. This was very inconvenient as it was not possible to predict whether the remaining manuscript could be photographed on the unexposed film or not.

The present invention provides a photographing device that eliminates the above-mentioned inconvenience.

The present invention will be explained below with reference to the drawings.

FIG. 1 shows a processor camera to which the present invention is applied. In the figure, reference numeral 1 denotes a camera section for photographing an original onto photographic film, and reference numeral 2 denotes a processor section for processing the photographed film, such as developing it.

An automatic document feeder 3 is disposed above the camera section 1, and documents 5 of different lengths such as checks, bills, stock certificates, and slips are stacked and loaded into a container 6.

The length of the original refers to the length of the original recorded on the film in the longitudinal direction of the film when the original is photographed on a film. 7 is a rotatable lever that sends the original 5 out of the container; 8 is a solenoid for feeding the original that drives the lever 7; and 9 is a spring connected to the end of the lever 7. When the solenoid 8 of the automatic document feeder is turned on, the lever 7 swings against the force of the spring 9, and its tip engages the edge of the lowest document in the container 6, and one document is placed in the illumination section. 15.

Reference numeral 10 denotes a document detector for detecting the presence or absence of a document in the container 6, which is composed of a micro switch, which turns on when a document is present in the container and outputs a logic "1" signal, which is used as a signal to control the solenoid 8. It will be done. The original 5 sent out of the container 6 is fed by a pair of feed rollers 16 disposed in the illumination section 15 to a photographing position between two spaced apart glass flat plates 17 and 18, and is transferred to a photographic film. After being photographed, 1
The paper is discharged onto a tray 20 by a pair of discharge rollers 19 .

The upper roller of the pair of feed rollers 16 is supported so as to be able to move vertically, and when a document is sent between the pair of feed rollers 16, the upper roller moves upward depending on the thickness of the document. The movement of the roller activates the document feed detector 25.

This detector 25 consists of a micro switch,
When the document is sent between the pair of feed rollers 16, it is turned on and outputs a logic "1" signal, and remains on until the trailing edge of the document passes the photographing position.

21 is a slit placed near the shooting position;
22 is a lamp that illuminates the original.

The document feed rollers 16 and 19 are driven by a drive source (not shown).
When the power switch is turned on, the two rotate at the same speed and feed the document. 30 is a projection lens, 31 is a shutter, and 32 is a slit. When the original 5 passes through the photographing position, it is projected by the projection lens 30 onto the microfilm F of the photographing section 29, and the film is exposed in the form of a slit.

The microfilm F is made of a known silver halide film and is held in a roll on a supply reel 33, and is passed between a capstan roller 35 and a pinch roller 36 disposed in the photographing section 29 into a film storage chamber 50.
will be guided to. The capstan roller 35 is coupled to a drive source (not shown) via an electromagnetic clutch, and when the document feed detector 25 is turned on, the clutch is actuated to drive the drive source and the roller 35, and the capstan roller 35 The film is fed at a speed equal to the moving speed of the document image on the surface of this roller.

Note that the photographic film is not limited to the one described in the above embodiments, and various sheet-like photoreceptors can be used.

The capstan roller 35 rotates to feed the film by the sum of the length of the original image projected onto the film and the length corresponding to the frame interval on the film. The frame spacing on the film is constant regardless of the length of the original. Therefore, the film is fed by a length corresponding to the length of the original each time an image is taken, and the feeding amount (length) differs depending on the length of the original.

Reference numeral 45 denotes a cutter for cutting the film, which is disposed near the entrance of the storage chamber and is driven by a solenoid (not shown). The storage chamber 50 has a box-shaped space, and a pair of discharge rollers 52 are arranged at the outlet thereof. The exposed film is fed into the storage chamber by a capstan roller 35. The film accumulated in the storage chamber is sent out from the storage chamber by a discharge roller 52 that rotates when a development start switch (not shown) is operated. A film loop F is thus formed in the storage chamber. 53 is a film guide plate.

In FIG. 2, a pulse generator 55 operates in conjunction with the rotation of the capstan roller 35, and generates a pulse every time the capstan roller 35 rotates by a certain angle. This pulse generator 55 is composed of a cam plate 56 fixed to the shaft of the capstan roller 35, and a micro switch 57 which is turned on and off by projections provided at regular intervals around the cam plate 56. Note that the pulse generator is not limited to the above embodiment, and various known pulse generators can be used.

The ejecting roller 52 is coupled to a driving source (not shown) of the processing section via an electromagnetic clutch, and when the electromagnetic clutch is turned on, the ejecting roller 52 rotates to feed the film in the storage chamber 50 at the same speed as the film feeding speed of the processor section. It is fed to the processor section at the same speed.

80 is a developing device, 81 and 82 are washers, and 83 is a dryer. The film F sent from the camera section 1 to the processor section 2 is fed by a drive roller 84, developed with a developer in a developing device 80, washed with water in water washers 81 and 82, and then heated with hot air in a dryer 83. After being dried, it is discharged onto a tray 86 by a discharge roller 85. Developing device 80, washing device 81, 8
Feed drums 90, 91, and 92 are arranged in each of the liquid tanks 2, and the film F is wound around each drum and fed. As the developer for the developing device 80, a monobath developing and fixing solution is used. Note that a two-bath development and fixing process in which the development process and the fixing process are performed separately in separate tanks may also be used. The feed roller 84, the discharge roller 85, and the drums 90, 91, and 92 are driven by the same drive source (not shown), and feed the film at the same speed.

Reference numeral 95 denotes a take-up reel used when winding the film. In this embodiment, it is assumed that the film feeding speed of the processing section is set to be faster than the film feeding speed of the camera section. Incidentally, the film feeding speeds of both may be the same or may have an opposite speed relationship.

FIG. 3 shows a control unit for displaying the number of images that can be taken by the processor camera.

In the figure, 100 is the central processing unit (hereinafter referred to as
102 is a temporary storage device (hereinafter referred to as CPU), 102 is a temporary storage device (hereinafter referred to as
103 is a fixed storage device (hereinafter abbreviated as ROM), 104 is a display device, 10
5 is an input/output control section. The total amount of film wound on the supply reel 33 is stored in the ROM 103. Usually, commercially available film is pre-wound on a reel, and the length of the film is 30.5 m.
When using a reel wound with this film
This length is stored in the ROM 103 as the total amount of unshot film. In the case of thin film, 65.5 m of film is stored on one reel, and in this case, the contents stored in the ROM 103 are changed. A pulse generator 55 is connected to the feeding of the film in the exposure section.
The pulses generated from the CPU 100 are calculated by a counting section of the CPU 100, and the counted value of the counting section is stored in the RAM 102. The value stored in the RAM 102 corresponds to the length of the photographed film. The amount of film fed when photographing one original document varies depending on the length of the original document (length in the conveyance direction of the original document), and is proportional to the length of the original document. The amount of film feed per document corresponds to the sum of the length of the document image on the film surface and the length of the frame interval.

In the above processor camera, each time an original is fed to a photographing position, the film F is fed by a length corresponding to the length of the original, and the photographed film is fed into the storage chamber 50. Pulses generated as the film is fed are counted by a counting section of the CPU 100.
The amount of photographed film is stored in the RAM 102. The difference between the total amount of loaded film stored in the ROM 103 and the amount of exposed film stored in the RAM 102 (corresponding to the amount of unexposed film) is calculated by the subtraction unit of the CPU 100, and the value is stored in the RAM 102. be remembered. On the other hand, the average length of originals on films of different lengths photographed on film is stored in the RAM 102. In the division section of the CPU 100, the amount of unphotographed film stored in the RAM 102 is divided by the value stored in the ROM 103, which stores the length of the document, which is the average length of the document on the film. ,
The value is displayed on display device 104. That is, the display device 104 displays the number of documents of average length that can be photographed on the unphotographed film, that is, the film remaining on the supply reel. The operator can check the contents displayed on the display device and judge whether or not documents of different lengths to be photographed can be photographed on a single film based on the average length of the documents photographed so far. As a result, related documents can be photographed on a single film, and photographing work can be carried out efficiently.

When shooting is finished or when the storage chamber is full of film, the operator presses the development start command button. When the development start command button is operated, the discharge roller 52 rotates, and the film in the storage chamber is fed to the developing section. On the other hand, when the development start switch is operated, the capstan roller 35 rotates to feed the film, and when the rear end of the final exposure area of the film passes the cutting position of the cutter 45, the capstan roller 35 stops. Then, the cutter 45 is operated to cut the film. The cut film is continuously developed, and the developed film is sent to the tray 86 or take-up reel 95. Therefore, during shooting, the operator can judge from the content displayed on the display device 104 whether or not it is possible to shoot a group of documents of various lengths to be newly shot on one film. It is possible to prevent document groups from being recorded on separate films.

The amount of film feeding corresponding to the length of the original is determined by the signal from the original feeding detector 25.
In other words, the document feed detector 25 outputs a "1" signal for a time proportional to the length of the document, and by controlling the amount of film feed based on this output signal, the film is moved to a length corresponding to the length of the document. only can be delivered.

Details of the display control section for the number of possible shots are shown in FIG.

In FIG. 4, 400 is an input circuit for inputting the length of the film loaded on the supply reel 33;
Reference numeral 1 denotes a code conversion circuit that converts the length of the input film into a code. In this embodiment, the code conversion circuit converts the length of the input film into a code. Convert code. 402 is a first storage circuit that stores the number of pulses code-converted by the code conversion circuit 401, that is, the length of the input film; 403 is a second storage circuit that stores the length of the photographed film;
04 is a third memory circuit for storing the number of photographed originals, 405 is a subtraction circuit, 407 is a film feed rate measuring device, 408 and 409 are addition circuits, 410 is a first division circuit, and 411 is a second division circuit. It is a calculation circuit. A film feeding amount measuring device 407 measures the length of the film fed when photographing one original, and indicates a measured value corresponding to the length of the original. This measuring device is 1
After photographing a sheet of original, the measured values are transferred and reset after transfer.

Addition circuit 408 calculates the sum of the length of the photographed film stored in second storage circuit 403 and the length of the film measured by measuring device 407, and transfers this added value to second storage circuit 403.

The added value of the adder circuit 408 is stored in the second storage circuit 403
, the second storage circuit erases the previously stored contents and stores this added value. Therefore, the second
The length of the film taken so far is stored in the memory circuit.

Next, when a new document is photographed, the contents stored in the second storage circuit will change in the same way as described above. The addition circuit 408 stores the added value in the second storage circuit 40.
It is reset after being transferred to 3.

The subtraction circuit 405 calculates the length of the film stored in the first storage circuit 402 and the second storage circuit 403.
calculates the difference in length between the photographed films stored in the camera, and the subtraction value of the subtraction circuit 405 represents the length of the unphotographed film remaining in front of the photographing section 29;
This value is sent to the second division circuit 411.

Addition circuit 409 adds the original detection signal of original feed detector 25 and the number of photographed originals stored in third storage circuit 404 , and transfers this added value to third storage circuit 404 . When the added value of the adder circuit 409 is sent to the third storage circuit, the third storage circuit erases the previously stored contents and stores this added value.
Therefore, the number of originals photographed so far is stored in the third storage circuit 404.

The first division circuit 410 divides the length of the photographed film stored in the second storage circuit 403 by the number of photographed originals stored in the third storage circuit 404, and the division value is It represents the average length of the originals on film that have been photographed so far.

The second division circuit 411 divides the length of the unphotographed film calculated by the subtraction circuit 405 by the average length of the photographed original on the film calculated by the first division circuit 410. The calculated value represents the number of originals having an average length that can be photographed on unphotographed film.

The division value of the second division circuit 411 is displayed by the display circuit 412.
is displayed. The third memory circuit 404 is reset and its stored contents are erased by operating the development start command button or by operating the cutter 45.

The first and second memory circuits 402 and 403 retain their memories regardless of whether the power switch is on or off.

Note that the measuring device 407 measures the length of the film fed when photographing one original, and the measured film length is the combination of the length of the original image on the film and the frame interval on the film. Corresponds to sum. Therefore, the length of a document having an average length corresponds to the length of the film fed when photographing an average document.

In the above embodiment, the photograph is taken using the slit exposure method, but the document and the film may be kept stationary and the photograph is taken using the full-surface simultaneous exposure method. In this case, after the photographing of one document is completed, the film is A predetermined amount is sent.

FIG. 5 shows an example of a film feed amount measuring device, which measures the film feed amount by converting it into the number of pulses.

In FIG. 5, 300 is a counter that counts pulses generated from the pulse generator 55;
302 is an AND gate, 303 and 304 are monomulti circuits, and 305 and 306 are inverters.
Monomulti circuit 303 outputs a short pulse control signal when document feed detector 25 detects a document. Mono multi circuit 304 is mono multi circuit 30
3 outputs a short pulse control signal when it no longer outputs a control signal, and is reset by this output signal. The counter 300 is the document feed detector 25
Immediately after detecting the document, it is reset by the output signal of the monomulti circuit 304, and at the same time as the reset, the AND gate 301 is opened and the pulses of the pulse generator 55 are counted by the counter 300. When the photographing of one document is completed, the pulse generator 55 stops outputting pulses. Therefore, the counter 300 counts the number of pulses corresponding to the length of feed when one document is photographed. Next, when a new document is sent to the illumination unit 15, when the document feed detector 25 detects this document, the AND gate 302 is opened by the output control signal from the monomulti circuit 303, and the count value of the counter 300 is transferred to the addition circuit. 408. Immediately after the count value of the counter 300 is transferred, the counter 300 is reset,
When photographing this new document, the pulse generator 5
Start counting the pulses generated from 5.

As a result, the counter 300 counts the number of pulses corresponding to the amount of film feeding for the photographed document each time one document is photographed.

As described above, according to the present invention, when photographing various originals with different lengths, it is possible to know the number of images that can be taken for originals with an average length, so whether it is possible to process unphotographed originals or not. can be easily known. Therefore, it is possible to easily determine whether unphotographed originals can be photographed on one sheet, prevent related originals from being recorded on separate sheets, and connect sheets after processing. There is no need to do so.

[Brief explanation of drawings]

Fig. 1 is a block diagram of a processor camera to which the present invention is applied, Fig. 2 is a block diagram of a pulse generator, Fig. 3 is a block diagram of a display control section, and Fig. 4 is a detailed block diagram of the display control section. FIG. 5 is a block diagram showing one embodiment of the film feed rate measuring device. 5... Original, F... Film, 100... Central processing unit, 102... Temporary storage device, 103... Fixed storage device.

Claims (1)

[Claims] 1. A photographing means for photographing images of manuscripts having different lengths on long sheets, a first calculation means for calculating the difference between the length of the input unphotographed sheet and the length of the photographed sheet, and a second calculating means for calculating the length of the sheet necessary to photograph the average length of the photographed originals based on the number of photographed originals;
a third calculation means for calculating the number of originals of average length that can be photographed on the remaining unphotographed sheets based on the calculation values of the first calculation means and the second calculation means; and the number of originals calculated by the third calculation means. A photographing device comprising: display means for displaying.