JPH11112719A - Picture reader - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent vibration to a carrying part when sub-scanning a photographic film. SOLUTION: At the time of reading a picture, the photographic film 22 is inserted from the insertion port 124 of a cover member 122. At the time of confirming the insertion of the photographic film, its detection signal is outputted to a personal computer 100. Thereby, 'in the middle of carrying a picture' is displayed on a monitor 116 and an alarm sound is issued from a built-in speaker. Thereby, an operator recognizes the picture to be in the middle of reading and takes care so as not to touch a desk, etc. In addition, as a carrier 14 is disconnected from outside by the member 122, the operator never touch the film carrier 14 carelessly to vibrate the photographic film in the middle of sub-scanning carrying and a read picture is not disturbed.

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 conveying a photographic film in a sub-scanning direction and reading an image in a main scanning direction intersecting the sub-scanning direction.

[0002]

2. Description of the Related Art An image reading apparatus for reading an image recorded on a photographic film by a scanner has been conventionally used. When an image on a photographic film is read by a line scanner, the photographic film is loaded on a film carrier that conveys the photographic film in the sub-scanning direction, and the film carrier is fixed at a predetermined position on a desk. Light emitted from a light source below the desk passes through a photographic film conveyed in a film carrier and is incident on an upper line CCD. That is, an image on the photographic film is read by scanning the photographic film conveyed in the sub-scanning direction in a main scanning direction that intersects the sub-scanning direction.

[0003] Since the line scanner reads an image as described above, if vibration is applied to the photographic film being conveyed in the sub-scanning direction (the operator touches the film carrier), the read image will have uneven streaks. The read image is disturbed. Therefore, line scanners
Usually, some form of vibration absorption is taken.

[0004]

However, if the operator hits or kicks a desk or table on which a film carrier for transporting a photographic film in the sub-scanning direction is installed, the above-described vibration absorbing measures are almost impossible. Vibration cannot be absorbed, and irregularities such as stripe unevenness occur in the read image.

SUMMARY OF THE INVENTION In view of the above, it is an object of the present invention to provide an image reading apparatus which prevents vibrations from being applied to a portion to be conveyed during sub-scanning conveyance of a photographic film.

[0006]

According to a first aspect of the present invention, there is provided an image reading apparatus for conveying a photographic film in a sub-scanning direction and reading an image in a main scanning direction intersecting the sub-scanning direction. Detecting means for detecting that the photographic film is loaded in the film transport unit, and a notifying means for notifying an operator that the photographic film is reading an image based on the detection of the detecting means, I do.

When the image reading is performed, the detecting means detects that the photographic film is loaded in the film transport section, and the notifying means informs the operator that the photographic film is being read (sub-scanning transport). Notice. Therefore, the operator is careful not to give an impact to the film transport unit, and a good read image without deterioration in image quality due to vibration can be obtained.

According to a second aspect of the present invention, there is provided an image reading apparatus for transporting a photographic film in a sub-scanning direction and reading an image in a main scanning direction intersecting the sub-scanning direction. And a shielding means for blocking the transfer part from the outside so that an operator does not come into contact with the transfer part.

Therefore, since the film transport section is shielded from the outside by the shielding means, it is ensured that the operator mistakenly touches the film transport section during the sub-scan transport and the photographic film vibrates and the read image is disturbed. Can be stopped.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. Hereinafter, the digital laboratory system 10 according to the present embodiment will be described first. (Schematic Configuration of Digital Lab System) FIG. 1 shows a schematic configuration of a digital laboratory system 10 according to the present embodiment, and FIG. 2 shows an appearance of the digital laboratory system 10. As shown in FIG. 1, the digital laboratory system 10 includes a line CCD scanner 12, an image processing unit 16, a laser printer unit 18, and a processor unit 20. As shown in FIG. 2, the line CCD scanner 12 and the image processing section 16 are provided in an input section 96, and the laser printer section 18 and the processor section 20 are provided in an output section 98.

The line CCD scanner 12 is for reading a film image recorded on a photographic film such as a negative film or a reversal film. For example, a 135 size photographic film, a 110 size photographic film, and a transparent magnetic film are used. Photographic film (2
40 size photographic film: so-called APS film), 1
Film images of photographic films of sizes 20 and 220 (Broni size) can be read. The line CCD scanner 12 reads the film image to be read by a line CCD and outputs image data. Further, a detection signal indicating that the photographic film 22 is loaded on the film carrier 14 described later is output to the personal computer 100.

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 the image data subjected to the image processing 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 includes a laser light source for irradiating R, G, and B laser lights.
The printing paper is irradiated with laser light modulated in accordance with the image data for recording input from 6, and an image is recorded on the printing paper by scanning exposure. 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.

(Schematic Configuration of Line CCD Scanner) FIG.
The film carrier 14 according to the present invention (details will be described later)
1 shows a schematic configuration of an optical system of the line CCD scanner 12 configured to include. This optical system includes a light source 64 such as a metal halide lamp or a halogen lamp. The IR is adjusted so that the light source 64 is located at the focal position.
A parabolic reflector 24 that transmits (infrared light) is provided, and light emitted from the light source 64 and reflected by the reflector 24 is irradiated toward the photographic film 22.

An IR cut filter 2 for cutting IR of light emitted from the light source 64 is provided on the light emission side of the light source 64.
6, C (cyan), M (magenta), and Y (yellow) dimming filters 70C, 70M, and 70Y, an ND filter 28 as a neutral density filter, and a light diffusion box that uses light emitted to the photographic film 22 as diffused light. 66 are arranged in order along the optical axis L. Dimming filters 70C, 70M,
70Y are configured to be independently movable,
The insertion amount into the optical path is adjusted in consideration of the balance of the light amounts of the component color lights emitted from the light source 64, the sensitivity of the line CCD 74 to the component color lights, and the like. This makes it possible to adjust the light receiving amounts of the three colors R, G, and B in the line CCD 74.

The photographic film 22 is a film carrier 1
4, the film is conveyed so that the film surface is perpendicular to the optical axis L. A slit hole 32 (see FIG. 4) is formed in the film carrier 14 so as to extend in a direction perpendicular to the conveying direction of the photographic film 22 through which light emitted from the light source 64 passes.

A lens unit 72 for forming an image of the light transmitted through the photographic film 22 along the optical axis L on the opposite side of the light source 64 with the film carrier 14 for transporting the photographic film 22 therebetween. Line CCD provided
74 are arranged in order.

FIG. 3 shows only a single lens as the lens unit 72.
May be a zoom lens composed of a plurality of lenses. The line CCD 74 is provided with three lines of CCD cells in which CCD cells are arranged in a line so as to be orthogonal to the transport direction of the photographic film 22 (the direction of arrow A shown in FIG. 3). R, G,
B with any one of the color separation filters of B attached
It is composed of a line color CCD. Therefore, CCD
The main scanning of film reading is performed in the cell arrangement direction,
When the photographic film 22 is transported, sub-scanning for reading a film image is performed. The line CCD 74
Means that three lines (CCD cell rows) are photographic film 22
Are arranged in order at predetermined intervals along the transport direction of, and there is a time difference between the detection timings of the R, G, and G component colors in the same pixel. However, in the present embodiment, by delaying the output timing of the photometric signal with a different delay time for each component color, R, R
G and B photometric signals are output simultaneously from the line CCD 74.

Further, based on the data of the film image read by the line CCD 74, focusing (autofocus) control for moving the image forming point position of the lens unit 72 so as to maximize the contrast of the film image is performed. Thus, the position of the image forming point of the lens unit 72 coincides with the light receiving surface of the line CCD 74.

As shown in FIG. 2, the line CCD scanner 12 configured as described above has the light source 64 disposed inside a box 112 provided below the desk 110 and is provided above the desk 110. A lens unit 72, a line CCD 74, and the like are arranged inside a box 114. On the side surface of the box 114, a cover member 122 having a U-shaped cross section that can slide up and down is provided. Cover member 1
22 shuts the film carrier 14 fixed to the desk 110 from the outside in a state of being lowered. A film insertion port 124 is formed on one side surface of the cover member 122. A monitor 116 and a keyboard 11 of the personal computer 100 are provided above the desk 110.
8 is provided, and a disk insertion box 120 such as a floppy disk is provided at a lower portion.

(Schematic Configuration of Film Carrier) Next, the film carrier 14 will be described in detail with reference to FIG. FIG. 4 shows a film carrier 14 according to the present embodiment. This film carrier 14
The present invention is applicable to the conveyance of a 35-size photographic film 22.

The film carrier 14 is provided with a cover 42 that is substantially the same as the base 40 that can be opened and closed with respect to the base 40. One side of the cover 42 has a cover 42
A lever 44 for operating the opening and closing of the shutter is mounted. The locking portion (not shown) of the lever 44 is
Can be closed with the cover 42 pressed against the base 40.

Line CC of digital lab system 10
In performing the reading process in the D scanner 12, the operator inserts the photographic film 22 from the insertion port 124 of the cover member 122 into the film insertion port 46 formed in the film carrier 14. At this time, the film is inserted so that the film image recorded on the photographic film 22 has a predetermined direction. In the present embodiment, the film image recorded on the photographic film 22 is inserted downward.

When the photographic film 22 is inserted and the leading edge of the photographic film 22 is detected by the leading edge detection sensor 52, the roller drive motor 84 is driven. When the roller drive motor 84 is driven, the timing belt 82,
The conveying roller pairs 54, 60, 68 rotate simultaneously and in the same direction via the pulley 85, and pinch and convey the photographic film 22 in a predetermined direction (the direction of arrow A shown in FIGS. 3 and 4). Dust and the like adhering to the surface of the photographic film 22 being conveyed are removed by a dust removal roller 56 or the like.

(Operation of the Present Embodiment) In the digital lab system 10 configured as described above, when reading the photographic film 22, vibration during transportation is prevented as follows.

First, in order to read an image, the photographic film 22 is inserted from the insertion opening 124 of the cover member 122 into the film insertion opening 46 of the film carrier 14.

The photographic film 22 includes a leading edge detection sensor 52
And the roller drive motor 84 of the film carrier 14 is driven. Thereby, the photographic film 2
2 is conveyed in the sub-scanning direction, and an image is read by the line CCD 74.

At this time, a detection signal from the tip detection sensor 52 is output to the personal computer 100, and based on the detection signal, the character "image reading" is displayed on the monitor 116, and a warning sound is emitted from a built-in speaker (not shown). Can be

Thus, the operator sitting in front of the monitor 116 recognizes that the photographic film 22 is being conveyed in the sub-scanning direction, and takes care not to hit or kick the desk 110. Further, since the cover member 122 shields the film carrier 14 from the outside, the operator does not carelessly touch during the sub-scanning conveyance. Therefore, the photographic film 22 is transported in a stable state (a state where the photographic film 22 is not vibrated by an impact or the like). As a result, the quality of the read image is good.

When the film carrier 14 is exchanged due to the change of the type of photographic film,
As shown in FIG. 5, the replacement is performed by sliding the cover member 122 upward. The shape of the cover member 122 is not limited to the present embodiment, but may be another shape as long as the film carrier 14 is shielded from the outside. The portion covered by the cover member may cover the box 114 together with the film carrier 14.

The means for notifying the operator that an image is being read may be provided with a unique warning lamp, which blinks.

[0032]

According to the first aspect of the present invention, there is provided the above-mentioned configuration, and the operator is careful not to give an impact to the film transport unit by the notification from the notification means, and the image quality is not reduced by vibration or the like. A good read image can be obtained.

According to the second aspect of the present invention, the operator can erroneously touch the film transport section during the sub-scanning transport, and can reliably prevent the photographic film from vibrating and disturbing the read image.

[Brief description of the drawings]

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

FIG. 2 is an external view of a digital laboratory system according to the embodiment.

FIG. 3 is a schematic perspective view showing an optical system of the line CCD scanner according to the embodiment.

FIG. 4 is a schematic perspective view showing the internal configuration of the film carrier according to the embodiment.

FIG. 5 is an external view of the digital lab system according to the embodiment in which a cover member is raised.

[Explanation of symbols]

 Reference Signs List 10 digital laboratory system 14 film carrier 22 photographic film 52 leading edge detection sensor (detection means) 116 monitor (notification means) 122 cover member (shielding means)

Claims (2)

[Claims] 1. A photographic film is transported in a sub-scanning direction,
In an image reading apparatus that reads an image in a main scanning direction that intersects the sub-scanning direction, a detection unit that detects that a photographic film is loaded in a film transport unit; An image reading device for notifying an operator that the image is being read. 2. A photographic film is transported in a sub-scanning direction.
In an image reading apparatus that reads an image in a main scanning direction that intersects with the sub-scanning direction, the image reading device includes a shielding unit that shields the transport part from the outside so that an operator does not contact the transport part of the photographic film. An image reading apparatus, comprising: