JPH11136423A - Image reader - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily load a film and to improve positioning accuracy. SOLUTION: When a photograph film 22 is temporarily fixed by a clip 564, then closed, mounted on a film-viewer table 514, then mounted on the mounting base 516 of a base main body 506 and slid along a vertical wall part 518, a film-viewer switch 546 is turned on and a light source is lighted. By the lighting, the relative position to a measure 542 of the photograph film 22 is easily recognized, an operator moves the photograph film 22 by manual work and positions it at a normal position, an electromagnet 570 is energized and thus, the positioning of the photograph film 22 is accurately completed on the base main body 506.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reading apparatus for reading an image recorded on a film.

[0002]

2. Description of the Related Art In recent years, a frame image recorded on a photographic film is photoelectrically read by a reading sensor such as a CCD, and image processing such as enlargement / reduction and various corrections is performed on digital image data obtained by the reading. In addition, a technique is known in which an image is formed on a recording material using a laser beam modulated based on digital image data that has been subjected to image processing.

As described above, in the technique of digitally reading a frame image using a reading sensor such as a CCD, the frame image is preliminarily read (so-called pre-scan) and the density of the frame image is read in order to realize accurate image reading. Reading conditions (for example, the amount of light applied to a frame image and CC
D, etc.) and the frame image is read again under the determined reading conditions (so-called fine scan).

[0004] In this case, since the pre-scan requires a relatively rough reading accuracy, there is a relatively large permissible range in the transport speed unevenness. On the other hand, fine scanning requires extremely severe reading accuracy, so that the allowable range of the transport speed unevenness is extremely narrow.

Here, the scanning is carried out by holding a long film by a film carrier and carrying out main scanning of the reading light of the reading sensor while carrying out sub-scanning by conveying at a constant speed.

Here, in the case of a film which cannot be automatically advanced by a frame, such as a large-size film or a piece film,
It is necessary to manually position the film in place and read the image on the film.

In this case, two plates are connected by hinges or the like to a moving body for moving the film on the optical axis in the sub-scanning direction (main scanning is performed by a scanner), and the size is substantially the same as the image size. A film clamp having a rectangular hole having a size is attached, and the film is moved in the sub-scanning direction by sandwiching the film between the film clamps.

[0008]

However, when the film is clamped by the film clamp, the positioning of the film is troublesome, and there is a case where the film cannot be accurately positioned. Also, since the film clamp must be changed every time the film type (size) is different, it is necessary to manually set the conditions (for example, the sub-scanning speed and the magnification) suitable for the film each time. In addition, the work becomes complicated.

In view of the above, it is an object of the present invention to provide an image reading apparatus which can easily load a film and can improve the positioning accuracy.

Another object of the present invention is to provide an image reading apparatus which can easily set image reading conditions suitable for the type of film to be loaded.

[0011]

According to a first aspect of the present invention, there is provided an image reading apparatus provided with a line scanner for reading an image recorded on a film, comprising: a frame for holding the film; Frame supporting means on which the frame holding the film is mounted so as to take at least two positions of an image reading position and a film changing position; and the frame supporting means can be mounted, and the frame supporting means is provided. And a moving means for moving the image on the read optical axis for reading the image from one end to the other end of the image on the film perpendicular to the scanning direction of the line scanner.

According to the first aspect of the present invention, when the film is held on the frame and placed on the frame support, the frame support is moved to a film exchange position different from the image reading position. By doing so, workability is improved. When the frame is placed on the frame supporting means, the frame supporting means is moved by the moving means to the image reading position, and is moved in a direction orthogonal to the scanning direction of the line scanner, so that the Images can be read.

According to a second aspect of the present invention, there is provided an image reading apparatus provided with a line scanner for reading an image recorded on a film, wherein the image reading apparatus holds the film and is provided for each type including the size of the film. A table provided with an identification mark indicating the type, and a table and a table on which the frame holding the film is mounted so as to take at least two positions of an image reading position and a film exchange position. Frame support means comprising a recognition means for recognizing an identification mark of a frame body, a part of the table having light transmissivity, and an index for film alignment provided on a transmission surface. And the frame support means can be mounted, and the frame support means is provided with a filter whose optical axis for reading the image is perpendicular to the scanning direction of the line scanner. And a, a moving means for moving to accommodate from one end of the image of the top to the other end.

According to the second aspect of the present invention, the film is held on the frame, and the frame is placed on the table of the frame supporting means. Since the table is provided with a shear caster corresponding to the film image surface, transmitted light facilitates film positioning. Since the positioning is performed based on the index for positioning, the positioning accuracy is good.

The exchange of the film (frame) is performed at the film exchange position, and after completion, the film is moved to the image reading position, and after the film is positioned, the image is read.

That is, since the frame for holding the film is inserted into the moving means via the frame supporting means, the frame is moved by the frame supporting means so that the film exchange position and the image reading position are changed. The film (frame) can be easily exchanged at the film exchange position, and accurate positioning can be performed at the image reading position by using a shark stain.

According to a third aspect of the present invention, in the first or second aspect, a focus chart is provided on a film holding surface of the frame.

According to the third aspect of the present invention, by providing the focus chart on the film holding surface of the frame, it is possible to easily perform focus adjustment even for an image that is difficult to focus.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the light source of the transmitted light is provided to the frame supporting means by moving the frame. A switch that is turned on and off is provided, and is turned on by moving from the image reading position to the film changing position, and is turned off by moving from the film changing position to the image reading position.

According to the fourth aspect of the present invention, the light source for transmission of the shark cast light is turned on / off along with the movement of the frame support means, thereby causing unevenness in image reading and the like due to leakage light of the positioning light source. Can be prevented.

According to a fifth aspect of the present invention, in any one of the second to fourth aspects of the present invention, the type of the film based on the identification mark is recognized by the recognition means.
At least one of a moving speed of the moving unit and a reading magnification at the time of image reading is set according to the recognized type of the film.

According to the fifth aspect of the present invention, the identification mark given to the frame is recognized by the recognition means, and the condition for reading the image is changed. For example, in the case of a large size such as a commemorative photograph taken at a brownie size or the like, the reading speed is reduced, and
In the case of a snapshot of 35 size or 240 (APS) size, the reading speed is increased. Alternatively, the reading magnification is changed. In this way, by assigning the identification mark indicating the type of film to each frame, it is not necessary to set the conditions each time, and the conditions can be set automatically, so that the workability is improved.

The automatic setting means, of course, actually performing the function of the apparatus automatically. However, the set numerical value and the like are displayed, and key input is performed based on the displayed numerical value and the like. Including.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a digital lab system according to the present embodiment will be described.

(Schematic Configuration of Entire System) FIG. 1 shows a schematic configuration of a digital lab system 10 according to the present embodiment, and FIG. 2 shows an appearance of the digital lab system 10. As shown in FIG. 1, the lab system 10 includes a line CCD scanner 14, an image processing unit 1
6, a laser printer unit 18 and a processor unit 20. The line CCD scanner 14 and the image processing unit 16 are integrated as an input unit 26 shown in FIG. Part 20
Are integrated as an output unit 28 shown in FIG.

The line CCD scanner 14 is for reading a frame image recorded on a photographic film such as a negative film or a reversal film.
5 size photographic film, 110 size photographic film, and photographic film with a transparent magnetic layer (24
0 size photographic film: so-called APS film), 12
Frame images of photographic film of size 0 and size 220 (Brownie size) can be read. The line CCD scanner 14 reads the frame image to be read by the line CCD, and outputs image data.

When reading images from films of different types (sizes) as described above, if the film is a long film (including a piece film) in which a plurality of image frames are continuously photographed, a film carrier suitable for each film line is used. CC
By installing at the reading optical axis position of the D scanner 14,
By transporting a film and sequentially positioning a plurality of image frames to a reading position by the film carrier, a plurality of images can be read automatically and continuously.

Here, in the line CCD scanner 14 of the present embodiment, instead of the long film as described above, a large size film such as a brownie size or a piece negative (135 size film cut in units of 6 frames) is used. ) Will be described as a digital lab system 10 for reading an image.

The image processing section 16 stores image data (scanned image data) output from the line CCD scanner 14.
Is input, image data obtained by photographing with a digital camera, image data obtained by reading an original (for example, a reflective original, etc.) with a scanner, image data generated by a computer, etc. File image data) from outside (for example,
It is also configured to be able to input through a storage medium such as a memory card or input from another information processing device via a communication line.

The image processing section 16 performs image processing such as various corrections on the input image data, and outputs the image data to the laser printer section 18 as recording image data. Also,
The image processing unit 16 outputs image data on which image processing has been performed to an external device as an image file (for example, outputs the image data to a storage medium such as a memory card, or transmits the image data to another information processing device via a communication line). It is also possible.

The laser printer unit 18 has R, G, and B laser light sources, and irradiates a photographic paper with laser light modulated in accordance with recording image data input from the image processing unit 16 to perform scanning exposure. To record an image on photographic paper. Further, the processor unit 20 performs each process of color development, bleach-fix, washing, and drying on the photographic paper on which the image is recorded by the scanning exposure by the laser printer unit 18. Thus, an image is formed on the printing paper.

(Configuration of Line CCD Scanner) Next, the configuration of the line CCD scanner 14 will be described. FIG. 3 shows a schematic configuration of an optical system of the line CCD scanner 14. The optical system includes a halogen lamp, a metal halide lamp, and the like, and includes a light source 30 that irradiates light to the photographic film 22 of Brownie size as an example.
On the light emission side of the light source 30, a light diffusion box 36 for diffusing light irradiated on the photographic film 22 is arranged in order.

The photographic film 22 includes a light diffusion box 36.
And is conveyed such that the screen of the frame image is perpendicular to the optical axis.

Between the light source 30 and the light diffusion box 36, C (cyan), M (magenta) and Y (yellow) dimming filters 114C, 114M and 114Y are arranged along the optical axis of the emitted light. A lens unit 40 that is provided in order and forms an image of light transmitted through the frame image along the optical axis on a side opposite to the light source 30 across the photographic film 22.
Line CCDs 116 are arranged in order. Although FIG. 3 shows only a single lens as the lens unit 40, the lens unit 40 is actually a zoom lens composed of a plurality of lenses.

The line CCD 116 includes a plurality of CCD cells arranged in a line along the width direction of the photographic film 22 to be conveyed, and a sensing unit provided with an electronic shutter mechanism. Each of the R, G, and B color separation filters is attached to the light incident side of each sensing unit (a so-called three-line color CCD). Line CCD 116
Are arranged such that the light receiving surface of each sensing unit coincides with the imaging point position of the lens unit 40.

In the vicinity of each sensing unit, a transfer unit is provided corresponding to each sensing unit. Electric charges accumulated in each CCD cell of each sensing unit are sequentially transferred via the corresponding transfer unit. Will be transferred. Although not shown, a shutter is provided between the line CCD 116 and the lens unit 40.

FIG. 4 shows a schematic configuration of an electric system of the line CCD scanner 14. Line CCD scanner 1
4 includes a microprocessor 46 for controlling the entire line CCD scanner 14. The microprocessor 46 has a RAM 64 (for example, SRA
M), ROM 66 (for example, RO whose storage contents can be rewritten)
M), a motor driver 48 is connected, and a filter drive motor 54 is connected to the motor driver 48. The filter drive motor 54 can slide the dimming filters 114C, 114M, and 114Y independently of each other.

The microprocessor 46 turns on and off the light source 30 in conjunction with turning on and off a power switch (not shown). The microprocessor 46 includes a line CCD 1
When the frame image is read (photometric) by the filter driving motor 54, the dimming filter 114C,
114M and 114Y are independently slid, and the amount of light incident on the line CCD 116 is adjusted for each component color light.

The motor driver 48 includes a zoom drive motor 70 for changing the zoom magnification of the lens unit 40 by relatively moving the positions of a plurality of lenses of the lens unit 40, and moving the entire lens unit 40. Is connected to a lens drive motor 106 for moving the image forming point position of the lens unit 40 along the optical axis. The microprocessor 46 controls the zoom drive motor 7 according to the size of the frame image and whether or not to perform trimming.
By 0, the zoom magnification of the lens unit 40 is changed to a desired magnification.

On the other hand, a timing generator 74 is connected to the line CCD 116. The timing generator 74 generates various timing signals (clock signals) for operating the line CCD 116, an A / D converter 82 described later, and the like. The signal output terminal of the line CCD 116 is connected to an A / D converter 82 via an amplifier 76. The signal output from the line CCD 116 is amplified by the amplifier 76 and converted to digital data by the A / D converter 82. Is done.

The output terminal of the A / D converter 82 is connected to an interface (I / F) circuit 90 via a correlated double sampling circuit (CDS) 88. The CDS 88 samples the feedthrough data indicating the level of the feedthrough signal and the pixel data indicating the level of the pixel signal, and subtracts the feedthrough data from the pixel data for each pixel. Then, the calculation result (pixel data accurately corresponding to the amount of charge stored in each CCD cell) is expressed by I /
The data is sequentially output to the image processing unit 16 as scan image data via the F circuit 90.

Note that R, G,
Since the photometric signals of B are output in parallel, the amplifier 76, A
Three signal processing systems including a / D converter 82 and a CDS 88 are also provided, and the I / F circuit 90 outputs R, G, and B image data as scan image data in parallel.

The motor driver 48 is connected to a shutter drive motor 92 for opening and closing the shutter.
The dark output of the line CCD 116 is corrected by the image processing unit 16 at the subsequent stage, but the dark output level is set by the microprocessor 4 when the frame image is not read.
6 can be obtained by closing the shutter.

(Configuration of Image Processing Unit) Next, the image processing unit 16
Will be described with reference to FIG. Image processing unit 1
Reference numeral 6 is provided with a line scanner correction unit 122 corresponding to the line CCD scanner 14. The line scanner correction unit 122 includes a dark correction circuit 124, a defective pixel correction unit 128, and a light correction circuit 13 corresponding to R, G, and B image data output in parallel from the line CCD scanner 14.
There are provided three signal processing systems composed of 0s.

The dark correction circuit 124 includes a line CCD 116
In the state where the light incident side is shielded from light by the shutter, data input from the line CCD scanner 14 (data representing the dark output level of each cell of the sensing unit of the line CCD 116) is stored for each cell, and CCD
From the scanned image data input from the scanner 14,
The correction is performed by reducing the dark output level of the cell corresponding to each pixel.

Also, the photoelectric conversion characteristics of the line CCD 116 vary from cell to cell. Defective pixel correction unit 12
In the bright correction circuit 130 at the subsequent stage of 8, the line CCD 116 reads the adjustment frame image with the line CCD 116 in a state where the frame image for adjustment with a constant density is set on the line CCD scanner 14. The gain is determined for each cell based on the image data of the adjustment frame image input from 14 (the density variation of each pixel represented by this image data is caused by the variation of the photoelectric conversion characteristics of each cell). Every line CCD scanner 14
The image data of the frame image to be read which is input from is corrected for each pixel according to the gain determined for each cell.

On the other hand, if the density of a specific pixel is significantly different from the density of other pixels in the image data of the frame image for adjustment, the cell corresponding to the specific pixel in the line CCD 116 has some abnormality. The specific pixel can be determined as a defective pixel. The defective pixel correction unit 128 stores the address of the defective pixel based on the image data of the adjustment frame image, and stores the defective pixel data in the image data of the frame image to be read input from the line CCD scanner 14. Generates new data by interpolating from the data of surrounding pixels.

Since three lines (CCD cell rows) are arranged in the line CCD 116 at predetermined intervals along the direction in which the photographic film 22 is transported, the line CCD scanner 14 outputs R, G, and B lines. There is a time difference in the timing at which the output of the image data of each component color is started.
The line scanner correction unit 122 delays the output timing of the image data with a different delay time for each component color so that the R, G, and B image data of the same pixel is simultaneously output on the frame image.

The output terminal of the line scanner correction unit 122 is connected to the input terminal of the selector 132.
Are output to the selector 132. The input terminal of the selector 132 is also connected to the data output terminal of the input / output controller 134. From the input / output controller 134, externally input file image data is input to the selector 132. Selector 1
The output terminals of the 32 are connected to the input / output controller 134 and the data input terminals of the image processor units 136A and 136B, respectively. The selector 132 can selectively output the input image data to each of the input / output controller 134 and the image processors 136A and 136B.

The image processor section 136A includes a memory controller 138, an image processor 140, and three frame memories 142A, 142B, 142C. Frame memories 142A, 142B, 142C
Has a capacity capable of storing image data of one frame image of one frame, and the image data input from the selector 132 is stored in any of the three frame memories 142. The memory controller 138 The address at which the image data is stored in the frame memory 142 is controlled so that the data of each pixel of the input image data is stored in the storage area of the frame memory 142 in a fixed order.

The image processor 140 takes in the image data stored in the frame memory 142, performs gradation conversion, color conversion, hypertone processing for compressing the gradation of an extremely low frequency luminance component of the image, and sharpness while suppressing graininess. Various image processing such as hyper sharpness processing for emphasizing is performed. Note that the processing conditions of the above image processing are automatically calculated by an auto setup engine 144 (described later), and the image processing is performed according to the calculated processing conditions. The image processor 140 is connected to the input / output controller 134, and the image data subjected to the image processing is temporarily stored in the frame memory 142 and then output to the input / output controller 134 at a predetermined timing. Note that the image processor unit 136B has the same configuration as the above-described image processor unit 136A, and a description thereof will be omitted.

In the present embodiment, each frame image is read twice by the line CCD scanner 14 at different resolutions. In the first reading at a relatively low resolution (hereinafter, referred to as pre-scan), even when the density of the frame image is extremely low (for example, a negative image overexposed on a negative film), the saturation of the accumulated charge in the line CCD 116 is not caused. The frame image is read under the reading conditions determined so as not to occur (light amounts of the light irradiating the photographic film in each of the R, G, and B wavelength ranges, and the charge storage time of the CCD). The image data (pre-scan image data) obtained by the pre-scan is input from the selector 132 to the input / output controller 134, and further output to the auto setup engine 144 connected to the input / output controller 134.

The auto setup engine 144 uses C
PU 146, RAM 148 (for example, DRAM), ROM
150 (for example, a rewritable ROM) and an input / output port 152, which are connected to each other via a bus 154.

The auto setup engine 144 generates a line C based on pre-scanned image data of a plurality of frame images input from the input / output controller 134.
Image processing conditions for image data (fine scan image data) obtained by the second relatively high resolution reading by the CD scanner 14 (hereinafter referred to as fine scan) are calculated, and the calculated processing conditions are stored in an image processor. Image processor 140 of unit 136
Output to In the calculation of the processing conditions of this image processing, it is determined whether or not there are a plurality of frame images of similar scenes based on the exposure amount at the time of shooting, the type of light source for shooting, and other feature amounts. Are determined, the processing conditions for the image processing on the fine scan image data of these frame images are the same or similar.

The optimum processing conditions for image processing vary depending on whether the image data after image processing is used for recording an image on photographic paper in the laser printer unit 18 or output to the outside. Since the image processing unit 16 is provided with two image processor units 136A and 136B, for example, when the image data is used for recording an image on photographic paper and is output to the outside, the auto setup engine 144 is used. Calculates the optimal processing conditions for each application, and calculates the image processor units 136A and 136A.
Output to B. Thereby, the image processor unit 13
6A and 136B, the same fine scan image data is subjected to image processing under different processing conditions.

Further, the auto setup engine 144
Calculates an image recording parameter that defines a gray balance and the like when recording an image on photographic paper by the laser printer unit 18 based on the pre-scan image data of the frame image input from the input / output controller 134, The image data is output simultaneously when the image data for recording (described later) is output to the printer unit 18. Auto setup engine 1
Reference numeral 44 also calculates the image processing conditions for file image data input from the outside in the same manner as described above.

The input / output controller 134 is an I / F circuit 1
It is connected to the laser printer section 18 via 56.
When the image data after image processing is used for recording an image on photographic paper, the image data processed by the image processor 136 is transferred from the input / output controller 134 via the I / F circuit 156 to the recording image. The data is output to the laser printer unit 18 as data. The auto setup engine 144 is connected to a personal computer 158. When the image data after the image processing is output to the outside as an image file, the image data processed by the image processor unit 136 is sent from the input / output controller 134 to the auto setup engine 144.
Is output to the personal computer 158 via the.

The personal computer 158 has a CPU
160, memory 162, display 164 and keyboard 166 (see also FIG. 2), hard disk 168, C
It includes a D-ROM driver 170, a transport control unit 172, an expansion slot 174, and an image compression / decompression unit 176.
These are connected to each other via a bus 178. The transport control unit 172 includes the manual carrier 502
And controls the conveyance of the photographic film 22 by the manual carrier 502 (see FIG. 2).

A driver (not shown) for reading / writing data from / to a storage medium such as a memory card.
A communication control device for communicating with another information processing device is connected to the personal computer 158 via the expansion slot 174. When image data for output to the outside is input from the input / output controller 134, the image data is output to the outside (the driver, the communication control device, or the like) as an image file via the expansion slot 174. When file image data is input from outside via the expansion slot 174, the input file image data
4 to the input / output controller 134. In this case, the input / output controller 134 outputs the input file image data to the selector 132.

The image processing section 16 outputs prescanned image data and the like to the personal computer 158,
A frame image read by the line CCD scanner 14 is displayed on the display 164, an image obtained by recording on a photographic paper is estimated and displayed on the display 164, and the operator can correct the image via the keyboard 166. When instructed, this can be reflected in the processing conditions of image processing.

(Configuration of Manual Carrier) FIGS. 6 to 8 show a manual carrier 502 for manual loading according to the present embodiment.

The manual carrier 502 has a movable base 504 disposed on a table in front of the line CCD scanner 14. This moving base 504 is
The base body 506 includes a pair of parallel shafts 50.
8, 510 supported. This shaft 508,5
10 has both ends fixed to a flange 512 (only one is shown in FIG. 6). For this reason, the base body 50
6 is slidable in the axial direction of the shafts 508 and 510.

The base main body 506 is provided with a vertical wall portion 518 so as to surround three sides of a mounting table 516 on which a later-described sheer cast table 514 is mounted. Mounting table 516
Is provided with a rectangular hole 520, which is a transmission hole of the light source 30.

The shafts 508 and 510 are pivotally supported by a circular hole 524 provided in a leg 522 formed by extending the lower end of the vertical wall 518.

A rotary shaft 526 having a male screw is screwed to the leg 522. Both ends of the rotary shaft 526 are supported by flanges 512 similarly to the shafts 508 and 510. The rotating shaft 526 penetrates one flange 512 (the flange 512 shown in FIG. 6) and is connected to the drive shaft of a motor 532 as a drive source via gears 528 and 530. Therefore, the rotation of the rotation shaft 526 by the driving force of the motor 532 allows the base body 506 to move in the axial direction of the shafts 508 and 510.

On the mounting table 516, a sheer cast table 514 is mounted and slidable.

As shown in FIG. 7, a guide groove 534 is formed on the side of the sheer cast table 514 from the near side to the far side of the drawing.
The roller 53 is provided on the inner peripheral surface of the vertical wall portion 518 on both sides of the roller 16.
6 is attached.

The guide groove 534 is formed with a notch 538 which is continuous with the lower surface. By setting the notch 538 and the roller 536 to correspond to each other, the sharkstain table 514 is mounted on the mounting table 516. , Rollers 536 are accommodated in the guide grooves 534.

Here, by rotating the roller 536 with the driving force of a driving means (not shown), the sheer cast table 514 can be slid in the front-rear (front-to-back) direction of the mounting table 516. ing.
In addition, the seeker table 514 may be slid manually on the mounting table 516 without using the driving means. 536 does not fall out from the notch 538.

[0086] A rectangular through-hole is provided at the center of the shear cast table 514, and
Are arranged. The Shakasten 540 is milky white and translucent, and has a vertical and horizontal scale 542 on its surface.

For this reason, when the photographic film 22 (actually, the photographic film 22 sandwiched by a film clamper 544 described later) is placed on the sherk caster 540, and light is transmitted from below the The arrangement state of the film 22 can be recognized based on the relative positional relationship with the scale 542.

A switch 546 for turning on and off a light source for shark-sten (in this embodiment, common to the light source 30 for image reading) is provided on the front side of the shark-sten table 540 as an inclined surface.

Further, a plurality (five in the present embodiment) of reading sensors 548 for reading the identification code provided on the film clamper 544 are provided on the back side of the sheer cast table 514. Here, the identification code is a combination of white or black marks, and if the combination of five white or black marks is used as in the present embodiment, 2 ⁵
(= 32) types can be identified.

The dimension between the pair of side walls 550 formed on the shear cast table 514 is determined by the film clamper 54.
4, whereby the film clamper 544 is guided by the pair of side walls 550 and slid on the shear cast table 514. In addition, a stopper 552 is provided on the back side of the shear cast table 514, and the film clamper 54 is provided.
4 restricts the amount of sliding to the back side. Also, the side wall 550
A concave portion 554 is provided at a central portion of the upper end of the photographic film 22 to provide an escape space for the photographic film 22 (in the case of a piece negative or the like) protruding from the film clamper 544.

The film clamper 544 includes a pair of plate members 5.
56, 558 are connected via hinges (not shown), and as shown in FIG.
6, 558, and a closed state in which they overlap.

The base plate 556 has a rectangular hole 560 suitable for the film size, and the cover plate 558 has a rectangular hole 562 slightly larger than the rectangular hole 560. I have. In addition, the rectangular hole 56
A focus chart 561 is provided on the periphery of 0.

A clip 564 is attached to the base plate 556.
Is provided so that the photographic film 22 can be temporarily fixed. The cover-side plate 558
Has a rectangular notch 56 adjacent to the rectangular hole 562.
6 are provided to prevent interference with the clip 564 when the pair of plate members 556 and 558 are closed.

Note that the focus chart 561 is
It is a position exposed from the rectangular hole 562 even when the plate members 556 and 558 are closed.

Further, a circular groove 568 is provided at the front side corner (two places) in FIG. 6 of the base side plate member 556, and the bottom surface is formed of a magnetic material. Correspondingly, the electromagnet 5 is provided at the upper corner (two places) of the cover side plate 558 in FIG.
70 is attached. Here, a pair of plate members 55
When the sheets 6 and 558 are closed, the photographic film 22 held therebetween is not completely held, and the position thereof can be changed manually. When the electromagnet 570 is energized, a pair of plate members 556, 558
Are in close contact with each other, and the photographic film 22 is firmly held therebetween.

As shown in FIG. 9, five identification marks 572 in white or black are provided on the back surface of the base plate 556 and on the cover plate 558 side. The identification marks 572 are provided at the same pitch as the arrangement pitch of the reading sensors 548.

In the manual carrier 500 having the above configuration, as shown in FIG. 8, the photographic film 22 is clipped onto the base side plate 556 of the film clamper 544.
4 and temporarily closed (FIG. 8), and then closed and placed on the sheer cast table 514 (FIG. 8). At this time, the sheer cast table 514 is pulled out to the near side in FIG. 6, so that the placing operation becomes easy. The film clamper 544
The relative position between the and the shear cast table 514 is guided by a pair of side walls 550, and the sliding amount is limited by the stopper 552, so that the relative position is always an appropriate position.

In this state, the shear cast table 51
8 is mounted on the mounting table 516 of the base main body 506 (FIG. 8), and is slid along the vertical wall portion 518 (automatic conveyance by driving of the roller 536 or manual pressing), and the shear switch 546 is turned on. The light source 30 is turned on.

By this lighting, the relative position of the photographic film 22 with respect to the scale 542 can be easily recognized, and the operator manually moves the photographic film 22 (the electromagnet 570 is in an off state) and positions the photographic film 22 at a proper position.

After the positioning is completed, when the electromagnet 570 is energized, the positioning of the photographic film 22 on the base body 506 is completed with high accuracy.

The operation of the present embodiment will be described below with reference to the flowchart of FIG. First, the film clamper 544 is selected according to the size of the photographic film 22 from which an image is to be read.

After the sorting, the photographic film 22 is positioned substantially at a predetermined position, and temporarily fixed by the clip 564.
Although the clip 564 holds the photographic film 22 by the elastic force of the clip 564 itself, the clip 564 may have a structure of being sandwiched by a spring force. However, it is desirable that the pinching force be such that the photographic film 22 can be moved in a clipped state.

When the clipping of the photographic film 22 is completed, the cover side plate 558 is moved so as to cover the base side plate 556. At this time, the notch 566 does not interfere with the clip 564.

When the pair of plate members 556 and 558 are overlapped, in this state, a slight gap is generated between them.
Thereby, the photographic film 22 can be moved manually.

In the above state (a state in which the pair of plate members 556 and 558 are overlapped), the film clamper 544 is placed on the sheer cast table 514. This mounting position can be accurately and always placed at a fixed position by the pair of side walls 550 and the stopper 552.

At the time of this mounting, the shear cast table 514 is placed at the film clamper replacement position (that is,
(The position pulled out to the near side of the base body 506), the mounting operation of the film clamper 544 is easily performed.

Here, a reading sensor 548 is provided on the sheer cast table 514 to detect an identification mark 572 provided on the back side of the film clamper 544. The identification mark 572 is a combination of five white or black colors, and can identify up to 64 types. The number of identification marks 572 is not limited to five, and may be determined according to the type of film. For example, if there are eight types of films, three identification marks 572 are sufficient, and 1
If there are 00 types, 6 or more are required.

When the reading sensor 548 detects the identification mark 572, the type of film is determined based on the identification mark 572, and the image reading speed and reading magnification are automatically set.

That is, in the case of a large size such as a brownie size, the image reading speed is reduced and the reading magnification is set to the reduction side. In the case of a small size such as 135 size, the image reading speed is increased and the reading magnification is set to the enlargement side.

Instead of automatic setting, an appropriate numerical value may be displayed, and the operator may make a key input while watching this display.

Next, the sheer cast table 514 is slid to the rear side of the base body 506. This sliding drives roller 536. This roller 536 is
34 (actually, the guide groove 534 moves), and the shear cast table 514 can be positioned at a predetermined position (image reading position) of the base body 506. Along with this movement, the shear switch 546 is turned on, and the light source 30 is turned on.

The light from this light source is
0 to the photographic film 22, the position of the photographic film 22 and the scale 54 are visually checked from above.
2 can be easily recognized, and if the position is deviated, the photographic film 22 is in a temporarily fixed state.
Positioning can be performed easily and accurately.

When the positioning is completed, the electromagnet 570 is energized, and a pair of plate members 556 of the film clamper 544,
558 can be tightly attached, and can firmly hold and hold the photographic film 22.

After the photographic film 22 is sandwiched and pressed by the pair of plate members 556 and 558, the rotating shaft 526 is rotated, and the base body 506 is reciprocated one time. The prescanning is performed during the first round trip of the first reciprocation. Next, the rotation shaft 536 is rotated again, and the base body 5 is rotated.
06 makes one reciprocation. Fine scanning is performed during the first round trip of the second round. At this time, if the image is difficult to adjust the focus, the focus may be adjusted using the focus chart 561.

Next, when the energization of the electromagnet 570 is released and a gap is formed between the pair of plate members 556 and 558, the rollers 536
Is driven (or manually), the drawer table 514 is pulled out to the front, and is replaced with the next film clamper 570. Alternatively, the loaded film clamper 570
Then, the photographic film 22 for reading a new image is mounted and reloaded.) When the drawer table 514 is pulled out, the drawer switch 546 is turned off, so that the light source 30 is turned off.

Here, in the present embodiment, the example in which the photographic film 22 of the brownie size is applied has been described, so that the film clamper 544 is exchanged each time.
In the case of a peace negative, the Shakasten table 514
In the state where is positioned at the reading position on the base main body 506, it may be moved manually to the next frame and positioned, and the electromagnet 570 may be energized again.

In this embodiment, the photographic film 22 is manually positioned using the manual carrier 502, and the base body 506 is reciprocated by the driving force of the motor 532 during the subsequent prescanning and fine scanning. However, as shown in FIG. 10, a prescanning may be performed by attaching a handle 590 to one end of the rotating shaft 526 and rotating the handle 590. At this time, handle 5
A mainspring 592 is attached to the base 90, energy is stored during prescanning, and fine scanning is performed in the return path when the handle 590 is opened (when prescanning is completed). Can be transported at a constant speed.

[0102]

As described above, the first aspect of the present invention has an excellent effect that the film can be easily loaded and the positioning accuracy can be improved.

According to the second aspect of the present invention, the film (frame) can be easily exchanged at the film exchange position, and accurate positioning can be performed at the image reading position by using a shark stain.

According to the third aspect of the present invention, it is possible to easily adjust the focus even if the image is difficult to focus.

According to the fourth aspect of the present invention, it is possible to prevent the occurrence of unevenness in image reading due to light leaking from the positioning light source.

According to the fifth aspect of the invention, it is possible to easily set image reading conditions suitable for the type of film to be loaded.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a digital laboratory system according to an embodiment of the present invention.

FIG. 2 is an external view of a digital laboratory system.

FIG. 3 is a schematic configuration diagram of an optical system of the line CCD scanner.

FIG. 4 is a schematic configuration diagram of an electric system of the line CCD scanner.

FIG. 5 is a schematic configuration diagram of an image processing unit.

FIG. 6 is a perspective view showing a schematic configuration of a manual carrier according to the present embodiment.

7A and 7B show the movement state of the base body of the manual carrier according to the present embodiment and the shank table, wherein FIG. 7A shows a state at the time of drawing (film exchange position), and FIG. FIG.

FIG. 8 is a schematic diagram showing a flow of loading a photographic film by a manual carrier.

FIG. 9 is a bottom view of the film clamper.

FIG. 10 is a perspective view of a manual carrier according to a modification of the present invention.

[Explanation of symbols]

 Reference Signs List 10 digital laboratory system 14 line CCD scanner (corresponding to scanning position) 22 photographic film 502 manual carrier 502 moving base (moving means) 506 base body 514 sharkstain table (frame support means) 540 sharkstain 526 rotating shaft 532 motor 542 scale 544 film Clamper 546 Shaker switch 548 Reading sensor 556, 558 Plate (frame) 561 Focus chart 564 Clip 572 Identification mark

Claims (5)

[Claims] 1. An image reading apparatus provided with a line scanner for reading an image recorded on a film, wherein a frame holding the film, and a frame holding the film are at least in an image reading position. And a frame supporting means placed so as to take two positions of a film exchange position, and the frame supporting means can be mounted, and the frame supporting means
Moving means for moving the read optical axis for reading the image so as to correspond from one end to the other end of the image on the film perpendicular to the scanning direction of the line scanner. 2. An image reading apparatus provided with a line scanner for reading an image recorded on a film, wherein the image reading apparatus holds the film and is provided for each type including a size of the film, and an identification indicating the type. A frame provided with a mark, a table placed so that the frame holding the film can take at least two positions of an image reading position and a film exchange position, and an identification mark of the placed frame. A frame supporting means comprising a recognizing means, a part of the table having a light transmitting property, and a sharkstain provided with an index for film alignment on a transmitting surface; and the frame supporting means. Can be mounted, the frame support means,
Moving means for moving the read optical axis for reading the image so as to correspond from one end to the other end of the image on the film perpendicular to the scanning direction of the line scanner. 3. The image reading apparatus according to claim 1, wherein a focus chart is provided on a film holding surface of the frame. 4. The frame supporting means is provided with a switch for turning on and off the light source of the transmitted light by moving the frame, and is turned on by moving from the image reading position to the film changing position. 4. The image reading apparatus according to claim 1, wherein the image reading apparatus is turned off by moving from the position to the image reading position. 5. A method according to claim 1, wherein said recognizing means recognizes a film type based on the identification mark, and sets at least one of a moving speed of said moving means and a reading magnification at the time of image reading in accordance with the recognized film type. The image reading device according to any one of claims 2 to 4, wherein: