JPH1042110A - Image recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To highly precisely read a digital image by changing an image forming power by which the image of an object is formed on a photoelectric conversion element. SOLUTION: Image information of the sheet-like transported object is taken and recorded in a long micro film and it is read and recorded by the photoelectric conversion element of a CCD and the like as an electric signal. An image recording device is provided with a CPU 67 as the center control part. A photographing form and power information of a lens, which are recorded and preserved in a memory 59 through the connection terminal 60 of a camera unit 43 installed on the main body are detected. The shift quantity of a lens position which is previously set for changing the power of the lens in the image read part 49 is transmitted to an image read part 49-side through a connection terminal 64 based on detected peculiar power information and the pulse motor driving circuit 66 of the image read part 49 drives a pulse motor 66 so as to change the power or the lens.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image recording apparatus provided with recording means for recording an image of a subject on a recording medium and reading means for reading as an electric signal by a photoelectric conversion element. The present invention relates to an image recording apparatus for simultaneously or selectively recording a sheet-like subject (document) such as a stock certificate, a bill, a slip, a check, and the like on a plurality of types of recording media such as a microfilm or an optical disk.

[0002]

2. Description of the Related Art As an example of an image recording apparatus as described above, a camera section for photographing and recording an image of a subject on a microfilm by an optical system using a lens, and an optical system using another lens for an image of the same subject. By providing an image reading unit for guiding to a photoelectric conversion element such as a CCD and reading as an electric signal in the same device, a microfilm having excellent information storage ability and a magneto-optical disk (MOD) having excellent information searching and editing ability are provided. 2. Description of the Related Art There is known an image recording apparatus which can selectively record simultaneously or as necessary in an electronic memory such as an electronic memory.

In such an image recording apparatus, a subject is conveyed in a state where an image of the subject is formed on a CCD and a microfilm, and sequentially read by the CCD in synchronization with the conveyance, and the microfilm is moved. Then, continuous shooting is performed, so that two types of recording can be performed efficiently and at high speed.

In a conventional image recording apparatus, when an image of a subject is photographed and recorded on a microfilm, the photographing form on the film, that is, the difference between simplex, duplex, and duo, and the size of the photographed subject, respectively By selectively installing a camera unit having lenses with different reduction ratios (magnifications) in the apparatus main body, it is possible to record an object image on a film in an effective and appropriate size.

However, depending on the reduction ratio of the lens of the camera unit used and the size of the subject, the subject image cannot fit on the film, and a part of the recorded image is lost. For this reason, the maximum size width of a recordable subject is determined according to the contraction rate of the lens, and the width size of the subject fed into the apparatus in the subject paper feeding unit of the apparatus body is regulated.

Further, in an image reading section using a CCD, a lens is formed so that an image of a subject having a maximum size width that can be fed into the apparatus main body corresponds to the maximum size width of the effective image reading area of the CCD. Is set.

[0007]

However, in the above image recording apparatus, a digital image of a subject which is read by a CCD and recorded / reproduced as an electric signal is
There is a problem that the resolution is inferior to the analog image photographed and recorded on the microfilm at the same time.

Accordingly, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to make effective use of a photoelectric conversion element (CCD) which determines the resolution of a digital image (digital). This is for reading an image with high accuracy.

[0009]

SUMMARY OF THE INVENTION The present invention is an image forming apparatus having the following configuration.

(1) Recording means for forming and recording an image of a subject on a recording medium by a first image forming means provided in a first optical path, and a second image forming means provided in a second optical path. Reading means for forming an image on a photoelectric conversion element by means and reading as an electric signal, wherein an image capable of simultaneously or selectively executing recording on a recording medium by the recording means and reading of a subject image by the reading means An image recording apparatus, characterized in that the recording apparatus further comprises a reduction ratio changing means for changing the image reduction ratio of the second imaging means.

(2) In (1), when the recording on the recording medium by the recording means and the reading of the subject image by the reading means are simultaneously executed, the image forming reduction ratio of the first imaging means is used. The reduction ratio changing means controls the image formation of the second image forming means so that the size width of the object recordable on the recording medium determined corresponds to the maximum effective area of the photoelectric conversion element in the reading means. An image recording apparatus characterized by changing a rate.

(3) In the case where only the reading of the subject image is performed by the reading means in (1), an image is formed so that the size width of the subject corresponds to the maximum effective area of the photoelectric conversion element in the reading means. An image recording apparatus, wherein the image reduction ratio of the second imaging unit is changed by the reduction ratio changing unit.

(4) In the case of (2) or (3), wherein the subject is conveyed in a predetermined direction, and the image forming reduction ratio of the second image forming means is changed by the reduction ratio changing means. An image recording apparatus that changes a subject scanning speed in a subject transport direction according to the reduction ratio.

<Operation> In an image recording apparatus capable of simultaneously or selectively performing recording on a recording medium by a recording unit and reading by a reading unit, a reduction ratio changing unit for changing an imaging reduction ratio of the second imaging unit is provided. With the provision, reading at an appropriate reduction ratio is possible.

[0015] In the case where the recording on the recording medium by the recording unit and the reading of the subject image by the reading unit are performed simultaneously, the maximum size width of the subject recordable on the recording medium according to the image reduction ratio of the first imaging unit. By changing the imaging reduction ratio of the second imaging unit by the reduction ratio changing unit so that an image is formed corresponding to the maximum effective area of the photoelectric conversion element in the reading unit, It is used effectively to enable high-precision reading.

[0016] In the case where only the reading of the subject image by the reading means is performed, the size of the subject fed to the apparatus main body is reduced so as to form an image corresponding to the maximum effective area of the photoelectric conversion element in the reading means. By changing the image reduction ratio of the second image forming unit by the ratio changing unit, the photoelectric conversion element is effectively used, and high-precision reading is enabled.

[0017] When the imaging reduction ratio of the second imaging unit is changed by the reduction ratio changing unit, the subject scanning speed is changed in accordance with the reduction ratio, so that the required accuracy is adjusted to the main scanning direction. In the sub-scanning direction.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 (1) Overall Configuration of Image Recording Apparatus FIG. 1 is a schematic configuration diagram of a subject transport system of an image recording apparatus according to the present invention, and FIG. 2 is a perspective view of a mirror configuration of an optical system of the apparatus. .

The image recording apparatus according to the present embodiment includes recording means for sequentially transporting a sheet-like subject (original document) and photographing and recording image information of the transported subject on a long microfilm serving as a photographing medium. It is a device provided with reading means for reading as an electric signal by a photoelectric conversion element such as a CCD.

A) Subject transport system The image recording apparatus 1 is roughly divided into a paper feed section 2 and a main body 3. Further, the main body 3 is divided into a lower transport unit 5 located on the upstream side of the transport path and an upper transport unit 6 located on the downstream side with a pair of guide glasses 4 located in the subject exposure section.

When the subject 7 is placed on the sheet feeding tray 8 inclined downward in the sheet feeding section 2, the subject 7 moves in the direction of arrow A by its own weight, and the sheet feeding roller 9 and the arrow C rotate in the direction of arrow B.
The sheet is separated one by one by a separation roller 10 rotating in the direction, and is fed into the sheet feeding conveyance path.

The separated subject 7 is sequentially placed on the roller pair 11,
It is transported to the lower transport unit 5 of the main body 3 via 12, 13, and 14. The paper feed unit 2 is detachable from the main body 3 by moving the paper feed unit 2 in the direction of arrow D.

In the lower transport unit 5, a lower belt 17 is wound around belt rollers 15, 16.
An appropriate tension is held by the tension roller 18, and the rotation of the lower drive roller 19 causes the lower belt 17 to rotate.
Is driven to rotate. The idler roller 20 is placed under its own weight on the belt roller 15 with the belt 17 therebetween.
Can be released in the direction of arrow E in FIG.

The subject 7 from the paper feed unit 2 is introduced between the idler roller 20 and the lower belt 17 and is
7 is driven.

The nip roller 22 is urged by the belt roller 16 and transports the subject 7 from the lower transport unit 5 to between the guide glasses 4.4.

The upper transport unit 6 is disposed above the guide glasses 4.4, 4 '. An upper belt 27 is wound around belt rollers 25 and 26 of the upper transport unit 6, and an appropriate tension is applied by a tension roller 28. Is held, and the subject 7 is conveyed by the upper belt 27 by the rotation of the upper drive roller 29. The nip roller 31 is urged by the belt roller 25 and transports the subject 7 from the guide glass 4 to the upper transport unit 6. The upper transport unit 6 is configured to be rotatable in the direction of arrow F about the fulcrum 30.

The subject 7 that has passed through the upper transport unit 6 passes through a pair of discharge rollers 32 and is discharged from a discharge port 33 to a stacker 34. 35 is a cover and a rotation center 36
, And can be opened in the direction of arrow G.

B) Optical system Guide glass 4 which is an object exposure section by the above-mentioned transport system.
The subject 7 transported between 4 'is the illumination lamp unit 2
The images on the front and back sides are simultaneously illuminated by 3.24,
The light flux from the subject 7 is transmitted to the camera unit 43 or the image reading unit (reading unit) 4 by the first optical path and the second optical path.
Leading to 9 respectively.

In the first optical path 39, the light beam from the subject 7 is reflected by the first mirrors 37 and 37 ',
8, 38 ', after being reflected obliquely downward by the second mirror 40 and upward by the third mirror 41,
The light is reflected forward by the fourth mirror 42 and guided to the camera unit 43. The camera unit 43 is configured to be detachable from the recording apparatus main body 1.

Similarly, in the second optical path 44, similarly to the first optical path 39, the luminous flux from the subject 7 is transmitted to the first mirror 3.
After being reflected by the mirrors 37 and 37 'and passing through the slits 45 and 45', the light is reflected obliquely downward by the second mirror 46, reflected upward by the third mirror 47, and then reflected forward by the fourth mirror 48 to read an image. Guided to section 49.

C) Camera Unit 43 FIG. 3 is a schematic diagram showing the configuration of the camera unit 43.
The camera unit 43 includes an imaging lens 50, a shutter 51,
A light beam reflected by the fourth mirror 42 of the first optical system 39 is transmitted through the imaging lens 50 to the microfilm 53 on the capstan roller 52.
The light is guided upward to form a subject image in a linear shape.

The film 53 is transported in synchronism with the movement of the subject 7, and continuous photographing is performed.

A supply reel 55 mounted on a supply shaft 54, a take-up reel 57 mounted on a take-up shaft 56, a capstan roller 52, and a capstan roller 52 sandwiching the film 53 as a transfer mechanism of the film 53. A guide roller 58 and the like pressed against the roller 52 are provided, and the film 53 unreeled from the supply reel 55 is transferred at a predetermined speed by the rotation of the capstan roller 52, and the photographed film 53 is slackened. It is wound up by a take-up reel 57 so as not to cause it.

The camera unit 43 has a memory 59
The camera unit can record and save information such as a photographing mode and a photographing reduction ratio with respect to the camera unit, and can transmit and receive the information to and from the recording apparatus 1 via the connection terminal 60.

FIG. 4 shows the camera unit 4 in the paper feed unit 2.
3 shows the size in the width direction of the subject 7 whose shooting is restricted by the reduction ratio of the third lens 50.

If the feeding direction of the subject in the paper feed unit 2 is set in the direction of arrow G, the lens contraction ratio of the camera unit 43 (× 5)
7, × 45, × 40)
The maximum size width of each of 1, 702, 703 is S1,
S2 and S3.

D) Image reading section 49 FIG. 5 shows the size width of the subject and the configuration of the image reading section 49.

The image reading section 49 includes an imaging lens 61, a CCD
The light beam reflected by the fourth mirror 48 of the second optical system 45 passes through the imaging lens 61 and is guided to the CCD 62 in which a plurality of pixels are linearly arranged to form a subject image. Is done. The subject image is photoelectrically converted by the CCD 62, extracted as an electric signal by the CCD drive circuit 63, and transmitted to the main body 3 via the connection terminal 64.

A pulse motor 65 is connected to the imaging lens 61 as means for changing the contraction ratio of the lens, and the contraction ratio can be changed by moving the position of at least a part of the lens.

Therefore, the width sizes S1, S2, S3 of the object
By changing the reduction ratio of the imaging lens 61 in accordance with the above, the subject image can always be formed in correspondence with the maximum size width L of the effective image reading area 621 of the CCD 62.

E) Changing the reduction ratio of the lens 61 FIG. 6 is a block diagram of elements related to image processing of the apparatus of this embodiment. The image recording apparatus 1 includes a CPU 67 as a central control unit, and a camera unit 4 mounted on the main body 3.
The photographing mode and the lens contraction ratio information stored in the memory 59 are detected via the third connection terminal 60. The amount of movement of the lens position set in advance to change the reduction ratio of the lens 61 in the image reading unit 49 based on the detected specific reduction ratio information is transmitted to the image reading unit 49 side via the connection terminal 64, The pulse motor 65 is driven by the pulse motor drive circuit 66 of the image reading unit 49 to
Change the reduction ratio of

Thereafter, the image output transmitted from the image reading section 49 via the terminal 64 is output to the memory 6 of the image processing section 68.
9 and the image processing unit 70, and is output from the terminal 71 to the external recording device 72 or the image display device 73 together with the contraction ratio information of the lens 61. Note that the operation unit 74 allows various inputs and outputs to and from the image recording apparatus 1.

In this embodiment, the image forming lens 61 for forming an image of a subject on the CCD 62 is provided with a reduction ratio changing means 65 for analog recording on the microfilm 53 and for external storage 72. When the digital recording is performed simultaneously, the reduction ratio changing means 65 reduces the size of the imaging lens 61 for the CCD 62 based on the maximum size width of the subject 7 which is regulated by the reduction ratio of the lens 50 of the camera unit 43 used. By changing the ratio and forming an image of the subject 7 having the maximum size width regulated by the contraction ratio of the lens 50 so as to correspond to the maximum size width of the effective image reading area of the CCD 62, the CCD 62 is effectively used. To improve the resolution of digital images.

Further, by effectively using the CCD 62 as required, a high-quality digital image can be input without using an expensive CCD having a large number of pixels and a high reading density, so that the economical effect is great. It is.

<Embodiment 2> FIG. 7 is a schematic configuration diagram of a subject transport system of an image recording apparatus according to the present invention, and FIG. 8 shows a positional relationship between a fed subject and a sensor for detecting the subject width size. FIG. 3 is a diagram showing a block diagram of elements related to image processing of the present example apparatus. In the present embodiment, for the sake of simplicity, the same parts as those in Embodiment 1 described above are denoted by the same reference numerals, and the description thereof will be omitted. Only different points and features will be described.

In this embodiment, the CCD of the subject image
In the case where only the reading by 62 is performed, the contraction rate of the CCD imaging lens 61 is changed based on the size width of the subject 7 by detecting the width size of the subject 7 fed to the apparatus main body 13 and the subject image is formed. The digital input is performed at the maximum resolution by forming an image corresponding to the full size width of the effective image reading area 621 of the CCD 62.

In FIG. 7, reference numeral 75 denotes a plurality of detectors 751, 752, 75 arranged in a line in the sheet feeding section 2 on the conveying path of the subject 7 in a direction perpendicular to the conveying direction of the subject.
3 is a subject detection sensor. The subject detection sensor 75 is located at the position shown in FIG.
753 are disposed, and it is possible to detect the width sizes S1, S2, and S3 of the subject 7 fed by the outputs of the respective detection units.

As shown in FIG. 9, the CPU of the apparatus main body 13
The size width of the subject detected by the subject detection sensor 75 in 67 and the CCD 62 in the image reading unit 49
Is compared with the maximum size width L (FIG. 5) of the effective image reading area, and the pulse motor 65 is driven by the pulse motor driving circuit 66 of the image reading unit 49 via the connection terminal 64. To change the reduction ratio of the lens 61.

Accordingly, the width size S1,
According to S2 and S3, the imaging lens 6 is formed in the same manner as in the first embodiment.
By changing the reduction ratio of 1, the subject image can always be formed in correspondence with the maximum size width L of the effective image reading area 621 of the CCD 62.

In this embodiment, when the photographing by the camera unit 39 and the reading by the image reading section 49 are performed simultaneously, the maximum size width of the subject 7 determined based on the contraction ratio of the lens 50 is determined by the reading means 49. The contraction ratio of the lens 61 is changed so that an image is formed corresponding to the maximum effective area 621 of the photoelectric conversion element 62.

<Embodiment 3> In Embodiments 1 and 2, the camera unit 39 used simultaneously
Changing the contraction ratio of the CCD imaging lens 61 based on the photographing contraction ratio or the size width of the subject 7 to be recorded, and forming an image of the subject corresponding to the maximum size width of the effective image reading area 621 of the CCD 62. In this embodiment, the image reading unit 49 further changes the conveying speed of the subject in accordance with the change in the reduction ratio of the CCD imaging lens 621. At the same time, the resolution in the image sub-scanning direction is improved at the same time.

In this case, assuming that the contraction rate of the CCD imaging lens 61 corresponding to the maximum object size width S1 in FIG. 5 is R1 and the object conveyance (scanning) speed at that time is V1, lenses corresponding to the object size widths S2 and S3. Reduction rate R of 61
2, R3 and the subject conveying (scanning) speed V2 at that time
V3 each

[0053]

(Equation 1) Becomes Therefore, by changing the object conveying (scanning) speed to V2 or V3 in accordance with the reduced ratios R2 and R3 to be changed, it is possible to improve the resolving power in the sub-scanning direction as in the main scanning direction. is there.

[0054]

As described above, according to the present invention, an image can be read with high accuracy by effectively utilizing a photoelectric conversion element.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an image recording apparatus according to the present invention.

FIG. 2 is a schematic perspective view of the optical system.

FIG. 3 is a schematic configuration diagram of a camera unit.

FIG. 4 is a diagram illustrating a relationship between a photographing reduction ratio of a camera unit and a subject size width in a paper feeding unit.

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

FIG. 6 is a block diagram of an image recording apparatus according to the present invention.

FIG. 7 is a schematic configuration diagram of an image recording apparatus according to a second embodiment.

FIG. 8 is a diagram illustrating a positional relationship of a detection unit of a subject detection sensor according to a second embodiment.

FIG. 9 is a block diagram relating to image processing of an image recording apparatus according to a second embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 image recording device 2 paper feed unit 7 subject 39 first optical path 44 second optical path 43 camera unit 49 image reading unit 50 lens (first imaging unit) 61 lens (second imaging unit) 52 microfilm 62 CCD 65 Pulse motor 75 Subject size detection sensor

Claims (4)

[Claims] 1. A recording means for forming an image of a subject on a recording medium by a first imaging means provided in a first optical path for recording, and a second imaging means provided in a second optical path. Reading means for forming an image on the photoelectric conversion element and reading the same as an electric signal, whereby image recording capable of simultaneously or selectively executing recording on a recording medium by the recording means and reading of a subject image by the reading means An image recording apparatus, comprising: a reduction ratio changing unit for changing an imaging reduction ratio of the second imaging unit. 2. The image forming apparatus according to claim 1, wherein, when the recording on the recording medium by the recording unit and the reading of the subject image by the reading unit are performed at the same time, it is determined by the imaging reduction ratio of the first imaging unit. The image reduction ratio of the second imaging unit is changed by the reduction ratio changing unit so that the size width of a subject recordable on a recording medium forms an image corresponding to the maximum effective area of the photoelectric conversion element in the reading unit. An image recording apparatus characterized by changing the following. 3. The method according to claim 1, wherein when only reading of the subject image by the reading unit is performed, the size of the subject is formed so as to correspond to the maximum effective area of the photoelectric conversion element in the reading unit. An image recording apparatus, wherein the image reduction ratio of the second imaging unit is changed by the reduction ratio changing unit. 4. The image processing apparatus according to claim 2, wherein the subject is conveyed in a predetermined direction, and when the image reduction ratio of the second imaging unit is changed by the reduction ratio changing unit, An image recording apparatus, wherein a subject scanning speed in a subject transport direction is changed according to the reduction ratio.