JPH05119406A - Film feeding method and film feeding controller - Google Patents

Abstract

PURPOSE:To always detect in edge on a side where and optical mark is started to be overprinted and to position an image frame at a printing position so that accurate positioning control may be accomplished. CONSTITUTION:The optical mark 32 is started to record just after starting to feed film after photographing by a camera, and it is formed by allowing an LED 26 to emit light for a specified time. The trailing edge of the optical mark 32 is dislocated or becomes indistinct according to the uneven feed of the film 14 and the consumed degree of a battery for lighting the LED 26. Therefore, the edge on a leading edge side in the feeding direction of the optical mark 32 in a photograph printing device is set as a reference for positioning in the case of the film 14 on which an image is picked up by the camera of a normal winding mechanism, and the edge on the trailing edge in the feeding direction of the optical mark 32 in the photograph printing device is set as the reference for positioning in the case of the film 14 on which the image is picked up by the camera of a prewinding mechanism.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention records an optical mark corresponding to each image frame taken during film winding, which is carried out each time a camera shoots, and records each image frame based on this optical mark. The present invention relates to a film transport method and a film transport control device for sequentially positioning print positions and performing a print process.

[0002]

2. Description of the Related Art Conventionally, in a photographic film such as a negative film, a device called a notcher puncher is used to detect the position of an image frame in order to specify the position of a photographed image frame on the negative film. , A notch (a semi-circular cutout) is provided for each image frame. By detecting this notch with a sensor provided on the negative carrier, the corresponding image frame can be positioned at the printing position.

Further, by detecting the boundary between the image frame and the base, that is, the edge, on the negative carrier, the position of the image frame is grasped, and the fixed amount is fed based on the distance between the detected position and the printing position. The image frame to be printed is also positioned at the printing position.

By the way, in recent years, it has been proposed to optically imprint a mark indicating an image frame position in a camera (hereinafter referred to as an optical mark). That is, while winding the negative film after photographing, the optical mark indicating the photographed image frame is printed in a band shape (rectangular shape). If the printing start time is synchronized for all image frames and the printing time is the same, the relative position of each image frame and the optical mark corresponding to this image frame will match, and the printing position during the printing process will be Can be applied to the positioning control.

However, the accuracy of the positioning control may differ depending on which part (edge) of the optical mark is used as the positioning reference. For example, if the time to finish burning the optical mark is not constant,
Alternatively, when the burning length is constant but the burning length is different due to uneven transport, applying the burning end edge as a positioning reference lacks an accurate difference.

[0006] In addition, since the light emission current is reduced due to the consumption of the battery for turning on the light source for attaching the optical mark, the start of burning is good, but the optical mark may become unclear at the end of burning. is there.

Therefore, it is preferable to select the edge on the burning start side as the positioning reference.

[0008]

However, depending on the camera, there is a mechanism for taking a picture while pulling out the negative film from the cartridge (normal wind), and a mechanism for taking out all the negative film from the patrone and then taking a picture while winding it in the patrone (prewind). There is.

On the other hand, in a printing apparatus, it is general that the printing process is carried out while sequentially drawing out from the cartridge.
In the case of the negative film photographed by the prewind, if the edge on the leading side in the transport direction is detected and positioned at the printing position, the trailing edge at the time of burning the optical mark is detected and positioned at the printing position. Therefore, there is a problem that accurate positioning cannot be performed.

In consideration of the above facts, the present invention is capable of accurately positioning the image frame at the printing position by detecting the edge of the optical mark on the printing start side and performing accurate positioning control. And to obtain a film transport controller.

[0011]

According to a first aspect of the present invention, an optical mark is recorded in correspondence with each image frame taken during film winding that is performed every time when the film is taken by a camera, and the optical mark is recorded. A film transport method for sequentially positioning each image frame to a print position based on the above, and performing a print process.If the filming state of the film is normal wind at a position on the leading end side in the transport direction during the print process. The recording start side edge of the optical mark is discriminated by recording the photographing state mark for distinguishing whether it is prewind or recognizing the photographing state by detecting the photographing state mark before the printing process. Each image frame is positioned at the printing position based on the edge of the optical mark.

According to a second aspect of the present invention, an optical mark is recorded in correspondence with each image frame taken during film winding, which is carried out each time when the film is taken by the camera, and each image frame is recorded based on the optical mark. Is a film transport control device for sequentially positioning the film to the printing position, the shooting state determining means for determining whether the shooting state of the film is normal wind or prewind, and the optical mark provided on the upstream side of the printing position. Optical mark detection means for detecting, edge determination means for determining the recording start side edge of the optical mark based on the shooting state determined by the shooting state determination means, and edge of the optical mark determined by the edge determination means Positioning means for positioning each image frame at the printing position based on the above.

[0013]

According to the first aspect of the invention, the photographing state mark is recorded at the position on the leading end side in the transport direction during the printing process before photographing the image on the negative film by the camera.
That is, the normal wind or the prewind is determined in advance.

This photographing state mark is detected during the printing process, and the recording start side edge of the optical mark is discriminated.

The recording start side edge is set as a positioning control reference position at the printing position, and each image frame is positioned at the printing position based on the recording start side edge of the optical mark. Therefore, regardless of whether it is normal wind or prewind, positioning is not performed based on the recording end side edge that causes a positional deviation due to uneven transportation of the camera, and accurate positioning control can be performed.

According to the second aspect of the present invention, the photographing condition determining means determines whether the photographing condition of the film is normal wind or prewind. Based on the shooting state determined by the shooting state determining means, the edge determining means determines the recording start side edge of the optical mark, and positions each image frame at the printing position based on the recording start side edge. As a result, the edge on the recording end side is not applied, and accurate positioning can be performed.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a camera 10 and a photo printing apparatus 12 according to this embodiment. The camera 10 is equipped with a cartridge 18 on one side of which the negative film 14 is wound around a spool 16 and accommodated therein. The camera 10 is provided with a drive reel 24 driven by a motor 22 connected to the control unit 20. The negative film 14 is pulled out from the cartridge 18 by hooking the leading end of the negative film 14 on the drive reel 24.

Here, depending on the type of the camera 10, the mechanism for frame-feeding the negative film 14 to the photographing position may differ.

The first feeding mechanism feeds the negative film 14 from the cartridge 18 in a frame-by-frame manner, sequentially photographs and winds it on the drive reel 24, and when the photographing is completed, the spool 16 of the cartridge 18 is finished. It is a mechanism (hereinafter referred to as a normal wind mechanism) for winding the negative film 14 around the cartridge 18 by driving a motor (not shown) connected thereto.

The second feeding mechanism winds all the negative film 14 from the cartridge 18 to the drive reel 24 side, and when it is rewound to the cartridge 18, frame feeds it and sequentially positions it at the photographing position (hereinafter referred to as prewind mechanism). Say)
Is.

The above-mentioned mechanism is determined by the type of the camera 10, and one camera does not use it properly.

As shown in FIG. 2, the camera 10 includes a base portion 14A (FIG. 3) at one end in the width direction of the negative film 14.
The recording unit 28 provided with the LED 26 is provided corresponding to the above (see FIG. A lens 30 is provided on the light output side of the recording unit 28 so that the light source emitted from the LED 26 is converged and condensed in a slit shape at a predetermined position on the base portion 14A of the negative film 14. There is.
Here, by causing the LED 26 to emit light while the negative film 14 is being conveyed, a rectangular optical mark 32 (see FIG. 3) is burned into the base portion 14A. This LE
Since the light emission of D26 is continued for a predetermined time during the frame advance for the next photographing after the photographing, the relative position between each photographed image frame 14B and the optical mark 32 becomes constant.
The optical mark 32 is used as a reference mark for positioning the image frame 14B at the printing position during the printing process.

Further, in the recording section 28, the photographing state mark 34 (FIG. 3) showing the photographing state of the negative film 14 in the normal wind mechanism or the prewind mechanism is provided at the front end portion (the front end of the image frame 14B) of the negative film 14. (See) is attached. That is, for example,
In the case of the normal wind mechanism, recording is performed in a plurality of intermittent bar shapes, and in the case of the prewind mechanism, recording is performed in a continuous strip shape so that they can be distinguished.

The negative film 14 which has been photographed is rewound on the cartridge 18 again, taken out from the camera 10 and sent to the laboratory through the DPE store. In the laboratory, after developing the negative film 14, the negative film 14 is placed at a predetermined position of the photographic printing apparatus 12. The optical mark 32 and the photographing state mark 34 are also visualized by this developing process.

The photographic printing apparatus 12 has a negative carrier 38 arranged on the optical axis of a light source 36 which is irradiated during printing. The negative carrier 38 is provided with a driving roller (not shown) that is rotated by the driving force of the driving unit 42 connected to the control device 40, so that the negative film 14 is conveyed in the direction of arrow A in FIG. It has become.

Further, the negative carrier 38 is provided with a solenoid 44 so that the negative film 14 can be clamped and pressed to the printing device by a signal from the control device 40.

Between the light source 36 and the negative carrier 38,
Each CMY filter 46 is interposed so that the CMY filters 46 appear and disappear on the optical axis according to the exposure amount of each color.

The light rays that have passed through the negative film 14 are irradiated onto the photographic printing paper 50 through the lens 48, and the image is printed on the photographic printing paper 50. A shutter 52 is interposed between the photographic printing paper 50 and the lens 48, and is retracted from the optical axis at the time of exposure by a signal from the control device 40.

On the conveying path of the negative film 14,
A reading unit 54 is provided on the upstream side of the negative carrier 38 so that the information (optical mark 32 and photographing state mark 34) recorded by the recording unit 28 of the camera 10 can be read. The control device 40 is provided with a memory for recording the information read by the reading unit 54.

Here, in the reading section 54, the cartridge 18
Since the reading is performed from the leading end of the negative film 14 pulled out from the image forming apparatus, the photographing state mark 34 is read first, and the control device 40 is to print the image.
The shooting order of the negative film 14 being conveyed can be grasped. That is, when a plurality of intermittent bar-shaped marks are detected, it can be determined that the film is the negative film 14 photographed by the camera 10 of the normal wind mechanism, and when a continuous strip-shaped mark is detected, the camera of the prewind mechanism is detected. 1
It can be determined that the negative film 14 was photographed at 0.

On the other hand, the reading unit 54 reads the optical mark 32, and the conveyance is controlled so that the optical mark 32 is positioned at the printing position (optical axis position) using the edge of the optical mark 32 as a positioning reference.

By the way, the optical mark 32 corresponds to the camera 10.
Recording is started at the same time as the start of conveyance after photographing by means of, and is formed by causing the LED 26 to emit light for a predetermined time. The trailing edge of this optical mark 32 turns on the conveyance unevenness of the negative film 14 and the LED 26. Depending on the degree of battery consumption, the position may shift or become unclear. In addition, if the film transport speed and time of the camera 10 vary, the position of the trailing edge also varies.

Therefore, in this embodiment, the negative film 1 taken by the camera 10 having the normal wind mechanism is used.
In the case of 4, the optical mark 32 in the photo printing device 12
In the case of the negative film 14 photographed by the camera 10 of the prewind mechanism, with the edge on the leading end side in the transport direction of No. 3 as the positioning reference, the optical mark 3 in the photo printing apparatus 12 is used.
The rear end edge of the sheet 2 in the transport direction is used as a positioning reference.

The operation of this embodiment will be described below. When shooting with the camera 10, the following two operations are performed according to the type of the camera 10.

In one operation, the cartridge 18 is used by the camera 1.
0, and when the leading end of the negative film 14 is hooked on the drive reel 24, the cartridge 1 of the negative film 14
It is conveyed to the first photographing position on the front end side in the drawing direction from 8. At this time, the recording unit 28 records a plurality of intermittent bar-shaped marks.

When the photographing is completed, the frame is advanced to the next photographing position, and at the same time when the frame is started, the LED 26
Is emitted for a predetermined time, and the rectangular optical mark 32 is recorded (in this case, a latent image state).

The optical mark 32 corresponds to the photographed image frame 14
The images are recorded corresponding to the number of B, and the relative positions of each image frame 14B and the corresponding optical mark 32 are all the same.

When all the photographing is completed, the negative film 14 wound on the drive reel 24 is again wound on the cartridge 18 and taken out from the camera 10 to obtain the DP.
It is sent to the lab through the E store.

Next, in the other operation, when the cartridge 18 is loaded into the camera 10 and the leading end of the negative film 10 is hooked on the drive reel 24, the negative film 14 is completely pulled out from the cartridge 18 and the drive reel is driven. It is wound up in 24.

At the start of this winding, a continuous strip-shaped mark is recorded by the recording unit 28 on the leading end of the negative film 14.

Next, the negative film 14 is conveyed in the rewinding direction to the cartridge 18 and is conveyed to the first photographing position.

When the photographing is completed, the frame is advanced to the next photographing position, and the LED 26 emits light for a predetermined time after the lapse of a predetermined time after the start of the frame advance, and the rectangular optical mark 3
2 is recorded. By emitting the light from the LED 26 after the predetermined time, the optical mark 32 can be recorded in the vicinity of the leading edge of the negative film 14 in the drawing direction from the cartridge 18 in the photographed image frame 14B.

When all the photographing is completed, the negative film 14
Since most of the film is wound around the cartridge 18, only the leading end of the remaining negative film 14 is wound around the spool 16 on the spool 16, taken out from the camera 10, and sent to the laboratory through the DPE store.

In the laboratory, the negative film 14 is developed and then loaded into the photographic printing apparatus 12.

The procedure of printing by the photographic printing apparatus 12 will be described below with reference to the flow charts of FIGS.

As shown in FIG. 4, in step 100, the loaded cartridge 18 to the negative film 14 are loaded.
When is extracted, in step 102, first, the image capturing state mark 34 is read by the reading unit 54. In the next step 104, the type of the shooting state mark 34 read is determined. That is, when a plurality of intermittent bar-shaped marks are detected, it is determined that the negative film 14 is taken by the camera 10 to which the normal wind mechanism is applied,
Go to step 106.

If a continuous band-shaped mark is detected in step 104, it is determined that the negative film 14 was taken by the camera 10 to which the prewind mechanism is applied, and the process proceeds to step 108.

In step 106, the normal wind transportation control shown in FIG. 5 is performed. In step 150, it is determined whether the leading edge of the optical mark 32 in the transport direction is detected. That is, it is determined whether or not it is the boundary portion from the base portion having a low density to the optical mark 32 having a high density, and if the determination is affirmative, the process proceeds to step 152, and the conveyance is continuously stopped for a predetermined time (step 153). ). Since the distance between the reading position of the reading unit 54 and the printing position is predetermined, the image frame 14B is accurately positioned at the printing position.

In the next step 154, the following printing process is performed. That is, when the image frame 14B is positioned at the printing position, the light from the light source 36 is applied to the negative film 14 via the filter 46, and the transmitted image is printed on the printing paper 50 via the lens 48.

In step 156, it is judged whether or not the printing process of the image frame 14B on the negative film 14 is completed. If the judgment is negative, the conveyance of the negative film 14 is restarted in step 158, and then the process proceeds to step 150. Then, the above steps are repeated. If the determination is affirmative, the process returns to the main routine.

Step 10 of the main routine shown in FIG.
8, the prewind conveyance control shown in FIG. 6 is performed. In step 200, it is determined whether the trailing edge of the optical mark 32 in the transport direction is detected. That is, it is judged whether or not it is a boundary portion from the high-density optical mark 32 to the low-density base portion.
Then, the process proceeds to 2 and the conveyance is continuously stopped for a predetermined time (step 203). Note that this predetermined time is obtained by subtracting the length dimension (the dimension between the leading edge and the trailing edge) of the optical mark 32 in the negative film transport direction from the predetermined distance between the reading position by the reading unit 54 and the printing position. Since the calculation is performed based on the distance, the image frame 14B is accurately positioned at the printing position.

In the next step 204, the following printing process is performed as in the normal wind transport control. That is, when the image frame 14B is positioned at the printing position,
Light from the light source 36 is applied to the negative film 14 via the filter 46, and the transmitted image is printed on the photographic paper 50 via the lens 48.

In step 206, it is judged whether or not the printing process of the image frame 14B on the negative film 14 is completed. If the judgment is negative, the conveyance of the negative film 14 is restarted in step 208, and then the process proceeds to step 200. Then, the above steps are repeated. If the determination is affirmative, the process returns to the main routine.

As described above, in this embodiment, the photographing state (normal wind or prewind) of the camera 10 is discriminated, and the recording start side edge of the optical mark 32 is always detected to position the image frame 14B at the printing position. Therefore, even if the recording end side edge of the optical mark 32 is misaligned or unclear due to uneven transportation of the negative film 14 in the camera 10, consumption of batteries, variation in transportation of various cameras, etc. It can be positioned at the printing position.

In the present embodiment, the carrying direction mark is optically recorded. However, a magnetic recording layer is provided on the negative film 14, and the magnetic information recording section of the camera 10 and the magnetic recording device 12 read the magnetic information. It is also possible to arrange each section and record the transport direction mark as magnetic information.

[0056]

As described above, the film transporting method and the film transporting control device according to the present invention can always detect the edge of the optical mark on the side where printing is started and position the image frame at the printing position. It has an excellent effect that various positioning controls can be performed.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a camera and a photo printing apparatus according to this embodiment.

FIG. 2 is a perspective view showing a recording unit of a camera.

FIG. 3 is a plan view of a negative film.

FIG. 4 is a flowchart showing a main routine of a printing process control in the photo printing apparatus.

FIG. 5 is a flowchart showing a transfer control routine corresponding to a normal wind mechanism.

FIG. 6 is a flowchart showing a transfer control routine corresponding to a prewind mechanism.

[Explanation of symbols]

 10 Camera 12 Photographic Printing Device 14 Negative Film 20 Control Unit (Camera Side) 26 LED 28 Recording Unit 32 Optical Mark 34 Photographing Status Mark 40 Control Device (Photographic Printing Device Side) 54 Reading Unit

Claims (2)

[Claims] 1. An optical mark is recorded in correspondence with each image frame taken during film winding, which is carried out each time when the image is taken by a camera, and each image frame is sequentially positioned at a printing position based on the optical mark. A film transport method for printing, wherein a shooting status mark for distinguishing whether the shooting status of the film is normal wind or prewind is recorded at a position on the leading end side in the transport direction during the printing processing. The recording start side edge of the optical mark is discriminated by detecting the photographing state mark before the printing process to recognize the photographing state, and each image frame is recorded based on the discriminated edge of the optical mark. A film transport method characterized by positioning at a printing position. 2. An optical mark is recorded corresponding to each image frame taken during film winding, which is carried out each time when the image is taken by a camera, and each image frame is sequentially positioned at a printing position based on the optical mark. A film transport control device for determining a shooting state of the film to be normal wind or prewind, and an optical mark detecting unit provided upstream of the printing position to detect the optical mark. An edge discriminating means for discriminating the recording start side edge of the optical mark based on the photographing state discriminated by the photographing state discriminating means, and each image frame based on the edge of the optical mark discriminated by the edge discriminating means. A film transport control device, comprising: a positioning unit that positions the printing position.