JPH07303169A - Inputting method for film image - Google Patents

Abstract

PURPOSE:To obtain the film image input method preventing decoloring of a photo film and preventing deformation of a film drive roller. CONSTITUTION:A fluorescent tube 12 is lighted and a photo film F is carried while being inserted between a capstan 52 and a pinch roller 54 and a transmitted image of a film frame is received by a CCD line sensor 16. After the end of reception of a transmission image, the light is carried to a position at which the light radiates only to a region between frames of the photo film F and then comes to a stop. When no operation is made for a prescribed time in this state, the fluorescent tube 12 is diminished or goes off and the film F is carried to a position till a photo detector 72 arranged apart from a photo detector 64 by a half frame detects perforation. Then a magnetic head 74 is pressed on the photo film F and then the press contact between the capstan 52 and the pinch roller 54 is released. Thus, decoloring of a frame image by the light is prevented and deformation of the roller is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film image input method, and more particularly, to preventing fading of a film in a film scanner which reads a frame image of a developed photographic film with a line sensor and processes an image signal based on the captured frame image. And a film image input method for preventing capstan deformation.

[0002]

2. Description of the Related Art While a long developed photographic film is being conveyed, the photographic film is irradiated with illumination light from a light source, and a transmission image of a frame of the photographic film thus irradiated is imaged by a line sensor such as a CCD. A film image input method for converting a transparent image into an image signal and outputting the image signal to a monitor TV to display a frame image is disclosed in JP-A-2-276362 and JP-A-4-3119.
It is publicly known in Japanese Patent No. 40, Japanese Utility Model Publication No. 4456/1992, and the like.

In addition, in the conventional film image input method,
In some cases, an infrared cut filter is arranged between the light source and the photographic film to block heat rays in the infrared region of the illumination light to prevent the frame image of the photographic film from fading due to the illumination light.

[0004]

However, in the conventional film image input method, when the transmission of one frame of the transparent image by the line sensor is completed, the photographic film is temporarily stopped at that position until the transmission of the transparent image of the next frame is started. Therefore, if no operation is performed for a long time in this state, the trailing edge of the frame that has been captured will be exposed to illumination light for a long time, and the image of that portion will be visible in the visible light region outside the infrared region. It has the drawback of fading due to the rays of light.

The conventional film image input device has a mechanism for sandwiching and transporting the film by a pinch roller and a capstan, and the film driving roller is usually made of a material such as rubber. Therefore, there is a problem that the roller is deformed when the capstan and the pinch roller are kept pressed against each other for a long time. The present invention has been made in view of such circumstances, and after completion of capturing a transparent image,
An object of the present invention is to provide a film image input method capable of preventing discoloration of a film and preventing deformation of a film driving roller when no operation is performed for a long time.

[0006]

In order to achieve the above object, the present invention conveys a long developed photographic film, and a transmission image of each frame is lined while irradiating the photographic film with illumination light from a light source. In a film image input method in which an image signal is read by a sensor and an image signal is output from the line sensor, the width of the illumination light emitted from the light source to the photo film is adjusted by a slit between a frame and a frame of the photo film. After the image reading of one frame by the line sensor is completed, the width of the photo film is limited so that the illumination light irradiates only the area between the frames of the photo film, and the photo film is conveyed and stopped. Is characterized by. The light source is dimmed when a predetermined operation is not performed within a first time after the conveyance of the film is stopped.

Further, the present invention conveys a long developed photographic film, reads the transmission image of each frame through a line sensor while irradiating the photographic film with illumination light from a light source, and outputs an image signal from the line sensor. Is a film image input method for outputting a film image for starting frame detection and image reading of one frame by detecting a perforation formed corresponding to each frame of the photo film by a perforation sensor. In the input method, the width of the illumination light emitted from the light source to the photographic film is limited to a width between the frames of the photographic film by a slit, and after the image reading of one frame by the line sensor is finished, The photographic film is adjusted so that the illumination light illuminates only the area between the frames of the photographic film. If the predetermined operation is not performed within the first time after the film is fed and stopped and the conveyance of the film is stopped, the light source is dimmed, and after the lapse of the first time, the light is stopped within a predetermined time. If the above operation is not performed, the photo film is moved so that the perforation sensor is located near the center of the frame, and thereafter, the pressure contact between the capstan and the pinch roller, which nips and conveys the photo film, is released. It is characterized by doing. Further, at this time, before releasing the pressure contact between the capstan and the pinch roller, the photographic film is pressed by a magnetic head for recording and reproducing magnetic information on the magnetic recording layer formed on the photographic film.

Further, in order to achieve the above object, the present invention provides
If the predetermined operation is not performed within a certain time after the film is stopped, the image reading position by the line sensor is the leading end side of the photographic film or the area after the last frame on the trailing end side. As described above, the photographic film is conveyed and stopped. Furthermore, in order to achieve the above-mentioned object, the present invention conveys a long developed photographic film, reads a transmission image of each frame through a line sensor while irradiating the photographic film with illumination light from a light source, In the film image input method in which an image signal is output from the line sensor, if a predetermined operation is not performed within a certain time after the image reading of one frame by the line sensor is finished, the illumination by the light source is performed. It is characterized in that the photographic film is continuously moved at a low speed over the entire one frame area so that the positions are not concentrated at one place.

[0009]

According to the present invention, the width of the illumination light applied to the developed photographic film is limited by the slit to be within the width between the frames of the photographic film. When the transmission of one frame of the transparent image by the line sensor is completed, the photographic film is conveyed to a position where the illumination light from the light source irradiates only the area between the frames of the photographic film and stops. As a result, even if the light source is continuously turned on after the transmission image is captured, the illumination light is not emitted to the frames and is emitted only to the area between the frames. Can be prevented. After that, if a predetermined operation is not performed within the first time, the light source is dimmed. This allows
The influence of illumination light can be further reduced, and fading can be prevented. In addition, instead of dimming the light source, there is also a case where the light source is turned off, or a mode where the light source is turned off after a certain period of time after dimming. It should be noted that dimming has an advantage that the light quantity stabilization time of the light source is shorter at the time of re-operation as compared with turning off.

Further, according to the present invention, after the conveyance of the photographic film is stopped, if a predetermined operation is not performed even after the lapse of the first time, the light source is dimmed, and then, further,
When a predetermined operation is not performed within a certain period of time, the photo film is moved so that the perforation sensor is located near the center of the frame, and then the capstan and pinch roller that convey the photo film by sandwiching it are crimped. Has been canceled. When the capstan and pinch roller are released from the pressure, the photo film becomes free, but even if the photo film moves, the perforation sensor is located near the center of the frame, so the perforation becomes the frame image reading start position. You can't miscount. Further, by pressing the photographic film with a magnetic head for recording and reproducing magnetic information on the magnetic recording layer formed on the photographic film before releasing the pressure contact between the capstan and the pinch roller, the miscount can be prevented more reliably. Become. This ensures a proper perforation count upon re-operation. The light source may be turned off instead of dimming the light source.

According to another aspect of the present invention, after the conveyance of the photographic film is stopped, if the predetermined operation is not performed even after the lapse of the first time, the illumination light is emitted to the front side of the photographic film. The photographic film is rewound and retracted so as to illuminate the reader portion, or the photographic film is sent out and retracted so that the illumination light illuminates the area after the final frame on the rear end side of the photographic film. It should be noted that it may be determined in advance in which direction to retract, or the direction closer to the stopped position may be determined. As a result, the frame portion of the photographic film is retracted from the illumination light, so fading can be avoided. Particularly, it is effective when there is no unexposed area between the frames or when the frame is extremely narrow according to the standard of the photographic film.

Further, according to another aspect of the present invention, if a predetermined operation is not performed after a lapse of a certain time after the conveyance of the photographic film is stopped, the illumination position by the light source is concentrated at one place. In order not to do so, the photographic film is continuously moved at a low speed over the entire area of one frame. Fading cannot be visually recognized if the density changes are uniform in one frame, so 1
The photo film is continuously moved slowly within one frame area while irradiating the photo film with illumination light so that the fading proceeds uniformly over the entire frame. As a result, the influence of fading of the photographic film can be avoided, and the pressing force of the capstan and the pinch roller holding the photographic film is not concentrated, so that the roller can be prevented from being locally deformed. The low speed means a speed slower than the transmission image capturing speed. Further, the present invention is particularly effective when there is no unexposed area between the frames according to the standard of the photographic film or when it is extremely narrow.

The present invention also uses a photographic film that is fed from a film cartridge having a single spool or rewound into the film cartridge, with the photographic film being withdrawn from the cartridge depending on the amount of time that it has been inactive. It is possible to prevent the fading of the photographic film and prevent the deformation of the roller by rewinding the film once, storing it in the cartridge and gradually increasing the degree of waiting.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of a film image input method according to the present invention will be described in detail below with reference to the accompanying drawings. Figure 1
FIG. 3 is a structural diagram showing an embodiment of a film image input device to which a film image input method according to the present invention is applied. As shown in the figure, the film image input device 10 is mainly composed of a fluorescent tube 12 for illumination, a photographing lens 14, a CCD circuit unit 18 including a CCD line sensor 16, a film driving mechanism 20, a CPU 22, and the like.

The developed photographic film F used in the film image input device 10 is provided with perforations 101 and 103 indicating the positions of the frames as shown in FIG. A magnetic recording layer 104 is formed and wound around a film cartridge 110 having a single spool 112. On the magnetic recording layer 104, magnetic data indicating shooting data and the like can be recorded for each frame by a camera having a magnetic head. The developed photographic film F is wound around the film cartridge 110 so that it can be stored.

The fluorescent tube 12 is arranged so that its longitudinal direction is orthogonal to the conveying direction of the photographic film F, and it is possible to illuminate the entire width of the photographic film F. The fluorescent tube 12 is disposed above a slit (photographing window) 28A formed in the guide member 28 in a direction orthogonal to the conveying direction of the photofilm F, and passes through the photographing window 28A. The image (see FIG. 2) is illuminated through the infrared cut filter 34.

The width T of the photographing window 28A is formed to be narrower than the interval t between the frames P of the photographic film F shown in FIG. 2, and the illumination light from the fluorescent tube 12 is narrower than the interval t. The area is illuminated. Further, the fluorescent tube 12 is connected to the CPU 22 via a light source inverter 35, and receives a signal from the CPU 22 and normally emits light /
It is controlled to be dimmed / turned off.

On the other hand, the image light transmitted through the frame P is imaged on the light receiving surface of the CCD line sensor 16 through the photographic window 37A formed in the lower guide member 37 and the unifocal photographic lens 14. While the CCD line sensor 16 takes in the transmission image of the frame P, the photographic film F is conveyed by the film driving mechanism 20 at a constant speed in the arrow A direction.
The driving of this photographic film will be described later.

The CCD line sensor 16 is arranged in a direction orthogonal to the film feeding direction. The image light formed on the light receiving surface of the CCD line sensor 16 is R, G, B.
Electric charges are accumulated for a predetermined time in each sensor having a filter and converted into R, G, and B signal charges in an amount corresponding to the intensity of light. The signal charges thus accumulated are read out to the shift register by a read gate pulse of a predetermined cycle applied from the CCD drive circuit and sequentially read out by a register transfer pulse.

The signal charges read from the CCD line sensor 16 are clamped by a CDS clamp and added to the analog processing circuit 38 as R, G, B signals, where the gains of the R, G, B signals, etc. Controlled. The R, G, B signals output from the analog processing circuit 38 are
After being converted into a digital signal by the A / D converter 39, it is stored in the frame memory 42 or the RAM (random access memory) 44 of the CPU 22 via the memory controller 40.

The information of one frame of each frame P stored in the frame memory 42 is read by the memory controller 40, converted into an analog signal by the D / A converter 46, and the encoder 48.
Is converted into a video signal and output to the monitor TV 50. The film drive mechanism 20 engages with the spool 112 of the film cartridge 110, and
A film supply section (not shown) for driving the film in the normal / reverse direction, a film winding section 84 for winding up the photographic film F sent from the film supply section, a capstan 52 and a pinch roller arranged in the film transport path. 54 and the like. The photo film drive mechanism 20 is controlled by a drive signal output from the CPU 22.
Is sandwiched between the capstan 52 and the pinch roller 54 and conveyed at a predetermined speed.

The capstan crimping mechanism 56 receives the control signal from the CPU 22 and drives the capstan 52 to crimp / retract. Further, a pair of photo detectors 62 and 64 are arranged in a photographing window 37A formed in the guide member 37, and are attached at symmetrical positions with respect to a photographing optical axis 65. The photo detectors 62 and 64 are perforations 101 formed at the end of the frame P of the photographic film F shown in FIG. 2 and perforations 103 formed at the beginning of the frame P located behind the frame P.
It is possible to detect the perforations 101 and 103 in a non-contact manner and to output the detected signals to the CPU 22 via the waveform shaping circuit 70.

The CPU 22 controls the timing of reading the image information by the CCD line sensor 16 based on the detection signal. Photo detector 72
Is arranged facing the magnetic head 74 at a position separated from the photodetector 64 by a distance C, detects the perforations 101 and 103 in a non-contact manner, and outputs the detected signal via the waveform shaping circuit 70 to the CPU 22. Can be output to. The distance C is half the distance between the perforations at the beginning and the end of one frame of the photographic film (see FIG. 2). And CPU2
In 2, based on the perforation detection signal,
The recording / reproducing timing of magnetic data by the magnetic head 74 is controlled.

The magnetic head 74 reads the magnetic data recorded on the magnetic track 104 of the photographic film F through a magnetic recording / reproducing device (not shown), while the CPU 22
The magnetic information recorded in the RAM 44 is recorded on the magnetic track 104 of the photographic film F. Magnetic head crimping mechanism 7
Reference numeral 6 is connected to the CPU 22, and receives the drive signal from the CPU 22 to drive the magnetic head 74 to the photo film F by pressure / retraction.

The CPU 22 has timers TM1 and TM2.
And a RAM 44, which appropriately processes an image signal from the CCD circuit unit 18 and also includes a light source inverter 3
5. Outputs a signal for controlling the capstan crimping mechanism 56 and the like. A key operation panel 80 and a liquid crystal display panel 82 are connected to the CPU 22, and the key operation panel 80
Various inputs can be made from the outside via the liquid crystal display panel 82.

The timers TM1 and TM2 are both cleared when a predetermined operation is performed on the system of the film image input device 10 using the key operation panel 80. still,
Timer setting time (timeout time) is timer TM2
> Timer TM1, for example, timer TM1 has a set time of 5 minutes and timer TM2 has a set time of 60 minutes. Further, the predetermined operation is, for example, a manual operation 1.
Frame playback commands, frame advance commands, frame vertical / horizontal information and various playback information input / edit commands,
Or, it means an operation command such as a print order.

Next, C of the film image input device 10 is described.
A control method by the PU 22 will be described. When the film cartridge 110 is mounted on the film image input device 10 of FIG. 1, the photographic film F stored in the film cartridge 110 is sent out from the cartridge 110 by the driving force of a motor (not shown). After that, it is nipped by the capstan 52 and the pinch roller 54, conveyed along the upper and lower guide members 28 and 37, passes between the fluorescent tube 12 and the photographing lens 14, and then the winding chamber 84.
Is attached to the take-up spool 85.

Then, the fluorescent tube 12 is turned on and the stabilization of the quantity of illumination light is waited for. After the amount of illumination light is stabilized, the film drive mechanism 20 is driven to convey the photographic film F from the film cartridge 110 in the direction of arrow A, and the transmission of the first transparent image of the photographic film F is started. That is, 1
Immediately before the start edge of the frame passes over the photographing optical axis 65, the CCD
The line sensor 16 is driven so that the transmission image of the frame P passing on the photographing optical axis 65 is captured by the CCD line sensor 16, and immediately after the end of the first frame passes on the photographing optical axis 65, the CCD line. The sensor 16 is stopped.

When the transmission of the transparent image of the first frame is completed, the photographic film F is continuously conveyed by the film driving mechanism 20. Then, from the photo detectors 62 and 64, the perforations 101 and 103 of the photo film F.
When the signal for detecting the film is output, the film drive mechanism 20
Then, the conveyance of the photo film F is temporarily stopped. As a result, in this embodiment, when the photographic film F is stopped, the illumination light from the fluorescent tube 12 is radiated at a substantially intermediate position between the frames P and the frames P and P of the guide member 28. Since it is shielded by the shooting window 28A, the frames P, P
The illumination light from the fluorescent tube 12 is not emitted.

The same operation can be repeated for the second and subsequent frames P to capture the transparent images of all the frames P. Therefore, according to the present embodiment, even if the fluorescent tube 12 is continuously turned on at the end of capturing the transmission image of one frame P, the fading of the frame image due to the illumination light can be prevented. Here, a case will be described in which the operation of the system is interrupted after the image capture of one frame has been completed at a certain frame and the photo film F is stopped.

If a predetermined key input is not made even after the set time (for example, 5 minutes) of the timer TM1 has elapsed, the timer TM1 times out and the following procedure is executed. [1] First, the fluorescent tube 12 is dimmed. As a result, the amount of light applied to the photographic film F is reduced and the photographic film F is
Fading can be suppressed.

[2] Next, the photographic film F is slowly fed until the photo detector 72 detects the perforation 103, and when the photo detector 72 detects the perforation 103, the photographic film F is stopped. In this stopped state, the photo detectors 62 and 64 come near the center of the frame. [3] Subsequently, the magnetic head 74 is crimped to the photographic film F via the magnetic head crimping mechanism 76, and [4] the capstan 52 is retracted from the photographic film F via the capstan crimping mechanism 56.

Normally, when the capstan 52 is uncompressed and retracted from the photo film F, the pinched state of the photo film F is released, and the photo film F becomes free, and the photo film F is arbitrarily set by the back tension of the cartridge 110 and the take-up reel 85. There is a risk that the perforations 101 and 103 may be miscounted when they are re-operated by moving about several mm. The above procedure assumes movement of the photo film F, moves the photo film F to a position that does not affect the perforation count in advance, and presses the magnetic head 74 against the photo film F to prevent the movement of the photo film F. is there.

Now, in this state, when a re-operation is performed by key input, the following procedure is executed. That is, [5] the fluorescent tube 12 is turned on for normal light emission. [6] The capstan 52 is crimped to the photographic film F via the capstan crimping mechanism 56.

[7] The magnetic head 74 is retracted from the photographic film F. [8] Wait for the light quantity of the fluorescent tube 12 to stabilize, and after the light quantity stabilizes,
Move to normal operation. Since the fluorescent tube 12 is not completely turned off, the time until the light quantity is stabilized is shortened. On the other hand, in the state of the above [4], if the predetermined operation by the key input is not performed even after the set time (for example, 60 minutes) of the timer TM2 has elapsed, the timer TM2 times out and the waiting degree is further increased. The following procedure is executed to shift to standby mode. Incidentally, before shifting to the standby mode described below, a step of confirming with the user whether or not the shift is possible may be performed.

[0036]

[9] Turn off the fluorescent tube 12 completely. As a result, the light illuminating the vicinity of the center of the frame of the photographic film F disappears, and the fading of the photographic film F can be avoided. [10] After that, the photographic film F is attached to the cartridge 110.
The capstan 52 is crimped onto the photographic film F via the capstan crimping mechanism 56 for storage.

[11] Further, the magnetic head 74, which has prevented the movement of the photographic film F, is retracted from the photographic film F. [12] Rewind the photographic film F, and cartridge 11
0, and the capstan 52 is evacuated after the storage is completed. When the magnetic data has been changed, the magnetic data is written when the photo film F is rewound.

When a re-operation is performed by key input in the standby mode, the designated operation is performed after the sequence ([13] to [17] below) exactly the same as when the film is loaded. . That is, [13] the fluorescent tube 12 is turned on for normal light emission.

[14] Load the film. [15] The capstan 52 is crimped to the photographic film F via the capstan crimping mechanism 56. [16] Waiting for the light quantity of the fluorescent tube 12 to stabilize, and [17] after the light quantity stabilizes, the index image showing the images of all the frames is read with low accuracy, and pre-scan for detecting the shooting conditions of each frame is executed.

[18] Then, the designated operation is executed. By the way, when there is no further key input operation in the standby mode state [12] and an eject command is issued, the magnetic data information has already been rewritten, so the normal magnetic data write sequence accompanying the eject command is performed. Omitting and executing the eject as it is.

Not limited to the above embodiment, it is conceivable to retract the photographic film F to a portion other than the frame portion (frame portion) when there is no operation for a certain period of time. For example, it may be determined that the photo film F should be retracted to either the leading end side of the photo film F or a region behind the final frame, or it may be determined which is closer to the current film position. It is also possible to evacuate to either of the above.

Further, in this embodiment, the photo detector 6
Although the stop position of the photographic film is detected by 2, 64 and 72, the present invention is not limited to this, and it may be detected by other detecting means. As a method for preventing fading of the photographic film and deformation of the roller,
Other than the above, a method that seems to be effective will be described below.

A mechanical shutter or liquid crystal shutter (not shown) is provided between the fluorescent tube 12 of the light source and the photographic film F, the shutter is opened only when the image of the photographic film F is picked up, and the shutter is closed in other cases, and the photographic film F is closed.
Do not irradiate extra light from the light source. This allows
It is possible to avoid fading of the photographic film. In addition, the photo film F is not completely stopped after the frame image is read, and the low speed that is slower than the image reading speed over the entire area of one frame of the photo film so that the illumination position of the light source is not concentrated in one place. It is also possible to keep moving slowly with. According to this method, the photo film F is continuously irradiated with the light source light, and therefore the fading of the photo film progresses, but the fading is invisible because the density is uniformly fading over the entire corresponding frame. Therefore, the influence on the frame image is less than that in the case where the photographic film F is stopped and one place is concentrated and fading.

Furthermore, since the capstan 52 and the pinch roller 54 continue to rotate, local deformation of the roller can be prevented. The above method is particularly effective when there is no unexposed area between the frames or when the frame is extremely narrow according to the standard of the photographic film F. Similarly to the above, a method of irradiating the entire surface of the photographic film F with light source light without completely stopping the photographic film F after reading the frame image can be considered. If the entire photo film F fades evenly, not only the effect of fading cannot be visually recognized, but also the degree of fading for each frame becomes uniform. In this method, the slit for limiting the width of the light source with which the photographic film is irradiated is not always necessary.

In addition, it is conceivable that the cumulative exposure time of each frame is recorded in the magnetic recording layer 104 so that the photographic film is not stopped or stagnated during standby on a frame having a long cumulative exposure time.

[0046]

As described above, according to the film image input method of the present invention, the width of the illumination light applied to the developed photographic film is within the width between the frames of the photographic film due to the slit. When the transmission image of one frame is captured by the line sensor, the illumination light is conveyed to a position where only the area between the frames of the photographic film is irradiated and stopped so that the illumination light is stopped. It is possible to prevent fading of frame images due to light.

If a predetermined operation is not performed within the first time after the photographic film is stopped, the light source is dimmed or turned off. As a result, the illumination light is not emitted to the frames after the transmission image is captured, and only the region between the frames is emitted, and the heat effect can be further reduced by dimming or extinguishing the light source. It is possible to prevent fading of the frame image due to the illumination light. By turning off the light after a certain period of time after dimming, it is possible to strictly prevent fading in stages.

If the predetermined operation is not performed even after the first time has elapsed after the conveyance of the photographic film, the light source is dimmed or turned off, and then the predetermined time is further maintained within a predetermined time. When the above operation is not performed, the photo film is moved so that the perforation sensor is located near the center of the frame, and thereafter, the pressure contact between the capstan and the pinch roller, which nips and conveys the photo film, is released. Therefore, at the time of re-operation, while ensuring a proper perforation count, it is possible to strictly prevent film fading gradually and prevent the capstan and pinch roller from being pressed for a long time. It is possible to prevent the film driving roller from being deformed.

Further, if a predetermined operation is not performed even after the first time has elapsed after the conveyance of the photographic film, the illumination light is emitted from the leading end of the photographic film or the final end of the rear end of the photographic film. Since the photographic film is sent out and retracted so as to illuminate the area after the frame, the frame portion of the photographic film can avoid fading due to illumination light. Also,
According to the film image input method of the present invention, after the conveyance of the photographic film is stopped, the illumination position by the light source is prevented from concentrating in one place when a predetermined operation is not performed even after a lapse of a certain time. Since the photographic film is continuously moved at a low speed over the entire area of one frame, fading is not concentrated at one place, the influence of fading can be avoided, and local deformation of the roller can be prevented. Particularly, it is effective when there is no unexposed area between the frames or when the frame is extremely narrow according to the standard of the photographic film.

Furthermore, according to the degree of time during which no operation is performed, the photographic film pulled out from the cartridge is further rewound once, stored in the cartridge, and the degree of standby is gradually increased. It is possible to enhance the prevention of fading of the photographic film and the prevention of the deformation of the roller. By combining the above configurations,
It is possible to gradually increase the degree of waiting depending on the length of time that no operation is performed. Also, dimming the light source,
Alternatively, when the light is turned off, there is another effect that the life of the light source tube of the device is extended. And there is no operation for a certain time,
There is also an effect that it is possible to prevent deterioration in image quality due to fluctuations in the light amount when the time from acquisition of the reading conditions of the line sensor (prescan) to acquisition of a high-precision image of one frame (main scan) becomes long.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a film image input device to which a film image input method according to the present invention is applied.

FIG. 2 is a plan view of a photographic film applied to the film image input device of FIG.

[Explanation of symbols]

 10 ... Film image input device 12 ... Fluorescent tube 16 ... CCD line sensor 20 ... Film driving mechanism 22 ... CPU 28A, 37A ... Photographing window 50 ... Monitor TV 52 ... Capstan 54 ... Pinch rollers 62, 64, 72 ... Photodetector 74 ... Magnetic head 101, 103 ... Perforation TM1, TM2 ... Timer

Claims (16)

[Claims] 1. Transporting a long developed photographic film,
In the film image input method, in which the transmission image of each frame is read through a line sensor while illuminating the photo film with illumination light from the light source, and an image signal is output from the line sensor, the photo film is input from the light source to the photo film. The width of the illuminating light to be emitted is limited within the width between the frames of the photographic film by the slit, and after the image reading of one frame by the line sensor is completed, the illuminating light is divided into the frames and the frames of the photographic film. A method for inputting a film image, characterized in that the photographic film is conveyed and stopped so as to illuminate only an area between them. 2. The film image input method according to claim 1, wherein the light source is dimmed when a predetermined operation is not performed within a first time after the conveyance of the film is stopped. 3. A long developed photographic film is conveyed,
A film image inputting method, wherein a transmission image of each frame is read through a line sensor while illuminating the photo film with illumination light, and an image signal is output from the line sensor. In a film image input method for starting frame detection and image reading of one frame by detecting perforations formed corresponding to frames by a perforation sensor, a slit of the width of illumination light emitted from the light source to the photographic film. The width between the frames of the photographic film is limited by the above, and after the image reading of one frame by the line sensor is completed, the illumination light irradiates only the area between the frames of the photographic film. The photo film is conveyed to and stopped at a predetermined time within a first time after the conveyance of the film is stopped. When the operation is not performed, the light source is dimmed, and when the predetermined operation is not performed within a certain time after the first time has elapsed, the perforation sensor comes near the center of the frame. The film image inputting method is characterized in that the photographic film is moved as described above, and thereafter, the pressure contact between the capstan and the pinch roller, which nips and conveys the photographic film, is released. 4. The photographic film is sent out from a film cartridge having a single spool or is rewound into the film cartridge, and the photographic film is removed from the capstan and the pinch roller by a predetermined time within a predetermined time after the pressure release between the capstan and the pinch roller. When the operation is not performed, the capstan and the pinch roller are pressure-bonded to once store the photographic film in the cartridge, and thereafter, the pressure-bonding of the capstan and the pinch roller is released again. The film image input method according to claim 3. 5. The film image input method according to claim 2, wherein the light source is turned off when a predetermined operation is not performed within a second time after the lapse of the first time. 6. A long developed photographic film is conveyed,
A film image inputting method, wherein a transmission image of each frame is read through a line sensor while illuminating the photo film with illumination light, and an image signal is output from the line sensor. In a film image input method for starting frame detection and image reading of one frame by detecting perforations formed corresponding to frames by a perforation sensor, a film image input method is provided within a predetermined time after a lapse of the second time. When the operation is not performed, the photo film is moved so that the perforation sensor is located near the center of the frame, and thereafter, the pressure contact between the capstan and the pinch roller, which nips and conveys the photo film, is released. 6. The film image input method according to claim 5, wherein. 7. The photographic film is sent out from a film cartridge having a single spool or is rewound into the film cartridge, and after a predetermined time is released after the capstan and the pinch roller are uncompressed. When the operation is not performed, the capstan and the pinch roller are pressure-bonded to once store the photographic film in the cartridge, and thereafter, the pressure-bonding of the capstan and the pinch roller is released again. 7. The film image input method according to claim 6. 8. If a predetermined operation is not performed within a third time after the lapse of the second time, the image reading position by the line sensor is set at the leading end side or the trailing end side of the photographic film. 5. The film image input method according to claim 4, wherein the photographic film is conveyed and stopped so as to be in the area after the last frame of the above. 9. The film image according to claim 8, wherein the photographic film is temporarily stored in the cartridge if a predetermined operation is not performed within a fourth time after the lapse of the third time. input method. 10. A long developed photographic film is conveyed, the transmission image of each frame is read through a line sensor while irradiating the photographic film with illumination light from a light source, and an image signal is output from the line sensor. In the film image input method as described above, the width of the illumination light emitted from the light source to the photo film is limited to a width between the frames of the photo film by slits, and one line of the image is read by the line sensor. After completion, the photographic film is conveyed and stopped so that the illumination light irradiates only the area between the frames of the photographic film, and a predetermined operation is performed within a certain time after the conveyance of the film is stopped. A film image inputting method, characterized in that the light source is turned off when not performed. 11. A long developed photographic film is conveyed, the transmission image of each frame is read through a line sensor while irradiating the photographic film with illumination light from a light source, and an image signal is output from the line sensor. In the film image input method as described above, the width of the illumination light emitted from the light source to the photo film is limited to a width between the frames of the photo film by slits, and one line of the image is read by the line sensor. After completion, the photographic film is conveyed and stopped so that the illumination light irradiates only the area between the frames of the photographic film, and a predetermined operation is performed within a certain time after the conveyance of the film is stopped. If it is not performed, the image reading position by the line sensor becomes the leader portion on the leading end side of the photographic film or the area after the last frame on the trailing end side. As described above, the film image input method, characterized in that the photographic film is conveyed and stopped. 12. A line sensor which transmits a transmission image of each frame while the developed photographic film is conveyed from a film cartridge wound around a single spool, and the photographic film is irradiated with illumination light from a light source. In the method of inputting a film image, which is read through the line sensor and outputs an image signal from the line sensor, the width of the illumination light emitted from the light source to the photographic film is adjusted by a slit to a width between the frames of the photographic film. When the image reading of one frame by the line sensor is completed, the photo film is conveyed and stopped so that the illumination light irradiates only the area between the frames of the photo film. If the specified operation is not performed within a certain time after the transport of the film is stopped, the photo film is temporarily loaded in the cartridge. A film image input method characterized by storing. 13. A long developed photographic film is conveyed, the transmission image of each frame is read through a line sensor while irradiating the photographic film with illumination light from a light source, and an image signal is output from the line sensor. In the film image input method as described above, if the predetermined operation is not performed within a certain time after the image reading of one frame by the line sensor is completed, the illumination position by the light source is prevented from concentrating on one place. A method for inputting a film image, characterized in that the photographic film is continuously moved at a low speed over the entire area of one frame. 14. A long developed photographic film is conveyed, the transmission image of each frame is read through a line sensor while irradiating the photographic film with illumination light from a light source, and an image signal is output from the line sensor. In the film image input method described above, when a predetermined operation is not performed within a certain time after the image reading of one frame by the line sensor is completed, the image reading position by the line sensor is set to the leading edge of the photographic film. Side of the photo film is conveyed and stopped so as to be in the area after the last frame on the side of the leader section or the rear end side, and thereafter, the pressure contact between the capstan and the pinch roller for nipping and conveying the photo film is released. A film image input method characterized by the above. 15. A long developed photographic film is conveyed, the transmitted image of each frame is read through a line sensor while irradiating the photographic film with illumination light from a light source, and an image signal is output from the line sensor. In the film image input method as described above, the perforations formed corresponding to each frame of the photographic film are detected by a perforation sensor, and the frame detection and 1
In the film image input method for starting image reading of a frame, in the case where a predetermined operation is not performed within a certain time after the image reading of one frame by the line sensor is completed, the perforation sensor is placed near the center of the frame. A method for inputting a film image, characterized in that the photo film is moved so as to come, and thereafter, the pressure contact between the capstan and the pinch roller, which nips and conveys the photo film, is released. 16. A magnetic recording formed on the photographic film after moving the photographic film so that the perforation sensor is located near the center of a frame and before releasing the pressure contact between the capstan and the pinch roller. 16. The film image input method according to claim 6 or 15, wherein the photographic film is pressed by a magnetic head for recording and reproducing magnetic information on the layer.