JPH08271991A - Process camera - Google Patents

Abstract

PURPOSE: To provide a process camera provided with a composite function and constituted so that a space is saved. CONSTITUTION: Luminous flux (α) reflected on an original placed on an original platen 105 is given to a photosensitive material 101 wound round an electrostatic attraction drum 104 through a prescribed optical system. At this time, the platen 105 and the drum 104 are moved and rotated at a speed corresponding to set magnification. Then, the material 101 is scanned and exposed. Besides, the read light (β) of the original is given to a CCD unit 114 and converted into a digital image signal. Then, recording light (γ) is emitted from an image recording unit 115 based on the digital signal given from the outside. The image of the recording light (γ) is formed on the material 101 through a lens 116. Thus, a digital image is recorded on the material 101. In such a way, this camera is provided with the function of a digital image input machine and the function of a digital image recorder in addition to the function of the analog process camera. Then, since the part being common S to the respective function parts is shared by them, the space is saved and a cost is reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate-making camera, and more particularly to a plate-making camera having a scanning exposure type camera using an analog optical system having a composite function.

[0002]

2. Description of the Related Art Conventionally, an analog camera for exposing an image obtained by scanning an original by directly forming an image on a film or a printing plate for light printing by an analog optical system using a mirror or a lens and an original Based on the digital image signal obtained by the image input device (digital image input device) that converts the image obtained by scanning the The image recording device that prints on the photosensitive material with laser light or the like is configured as an independent device.

Generally, an analog type camera is used for photographing a line drawing which requires little data processing. This is because the analog type camera can perform high-speed exposure as compared with the case of using a digital image input / output device, and can be easily enlarged to capture a larger-sized document. On the other hand, the digital image input device is used for reading continuous-tone images such as photo originals. Because the digital image input machine processes the digital image data obtained by reading the photographic original,
This is because it can be easily converted into a halftone image and can be scaled. As described above, conventionally, since the analog type camera, the digital image input device and the image recording device are selectively used according to the type of the target document, they are configured as separate and independent devices. I had no idea to combine them into one device.

[0004]

As described above, in the past, since each device existed as a dedicated device, there was a problem that the installation space as a whole was wide and the introduction cost was high. .

It is known that the image input device and the image recording device are integrally formed, but since the constituent elements of the devices are basically different from each other, the constituent parts are almost commonly used. No installation space has been saved.

Further, Japanese Patent Laid-Open No. 6-88999 discloses that
There is disclosed an apparatus in which a static exposure type camera using an analog optical system is provided with an image setter in an apparatus equipped with an automatic developing machine and the film magazine section and the automatic developing machine are shared. However, in this conventional apparatus, since the image setter is simply incorporated in the still exposure type camera, there is a problem in that the apparatus space is not so different from that when separate apparatuses are used.

Therefore, an object of the present invention is to provide a plate-making camera which has a composite function and can save space.

[0008]

The invention according to claim 1 is
A plate-making camera that scans a document and exposes the image on a light-sensitive material, and forms a document table on which a document to be read is placed and an image of the document on the document table at first and second image forming positions. An original scanning unit that relatively moves any two of the three elements of the optical system for forming an image, the original on the original table, the optical system, and the photosensitive material at a speed ratio according to the set magnification. A transport means for transporting the sensitive material in the sub-scanning direction at the first image forming position;
And an image sensor that converts the image of the document read by the optical system into a digital image signal and outputs the digital image signal.

According to a second aspect of the present invention, in the first aspect of the invention, the optical system includes a first optical system for forming an image of an original on the original table at a first image forming position, and an optical system on the original table. Second optical system for forming an image of the original document at the second image forming position.

According to a third aspect of the present invention, in the first aspect of the invention, the optical system has an optical path for exit from an original on the original table.
An optical path switching means for switching between the first image forming position direction and the second image forming position direction is included.

According to a fourth aspect of the present invention, in the second aspect of the present invention, the optical path switching means includes a first mirror that reflects a light beam from an original document on the original table, and a reflection surface of the first mirror is provided. The feature is that the optical path is switched by switching the angle.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects of the present invention, recording light emitting means for emitting recording light based on a given digital image signal, and recording light on a photosensitive material. Recording light image forming means for forming an image is further provided.

According to a sixth aspect of the invention, in the fifth aspect of the invention, the recording light emitting means emits the recording light based on the digital image signal output from the image sensor.

According to a seventh aspect of the invention, in the fifth aspect of the invention, the recording light image forming means includes a second mirror and a lens arranged on the optical path of the optical system, and the second mirror and the lens are provided. It is characterized in that the optical information given to the sensitive material can be switched by driving the optical system forward and backward in the optical path.

According to an eighth aspect of the present invention, there is provided a plate making camera which scans a document and exposes the image on a photosensitive material. An optical system for forming an image at an image forming position, a document on a platen, an optical system,
A document scanning means for relatively moving any two of the three elements of the sensitive material at a speed ratio according to the set magnification, and a transport means for transporting the sensitive material in the sub-scanning direction at a predetermined image forming position. And a recording light emitting means for emitting recording light based on a given digital image signal, and a recording light image forming means for forming an image of the recording light on the photosensitive material.

[0016]

According to the first aspect of the present invention, the image of the document placed on the document table is formed at the first and second image forming positions, and the document on the document table, the optical system and the photosensitive material are provided. Of the three elements of
Any two elements are relatively moved at a speed ratio according to the set magnification. Then, at the first image forming position, the photosensitive material is scanned and exposed by being conveyed in the sub-scanning direction. Further, an image sensor is provided at the second image forming position, and the image of the original read by the optical system is converted into a digital image signal and output. Thus, the function of the digital image input device is added to the analog type plate making camera. And since at least the document table and the document scanning means can be shared, the installation space can be saved and at the same time,
The installation cost can be reduced.

In the invention according to claim 2, the original image is formed at the first image forming position by the first optical system, and the original image is formed at the second image forming position by the second optical system. It

According to the third aspect of the invention, the optical path of light emitted from the original on the original table is switched between the first image forming position direction and the second image forming position direction by the optical path switching means. . As a result, one optical system can be shared by the analog plate-making camera and the digital image input device, and the installation space can be further saved and the introduction cost can be further reduced.

In the invention according to claim 4, the optical path switching means reflects the image read from the document on the document table.
The mirror is included, and the optical path is switched by switching the angle of the reflecting surface of the first mirror.

In the invention according to claim 5, the recording light emitting means emits the recording light based on the applied digital image signal. The recording light is imaged on the photosensitive material by the recording light imaging means. As a result, a digital image is recorded on the photosensitive material. That is, in the invention of claim 5, the function of the digital image recording apparatus is added in addition to the functions of the analog type plate making camera and the digital image input device. Then, at least the conveying means can be shared between the analog plate-making camera and the digital image recording apparatus.

According to the sixth aspect of the invention, the recording light emitting means emits the recording light based on the digital image signal output from the image sensor. With this, it is possible to construct a system capable of performing most of the plate making process in one apparatus.

In the invention according to claim 7, the recording light image forming means includes a second mirror and a lens arranged on the optical path of the optical system, and the second mirror and the lens are provided in the optical path of the optical system. The optical information given to the light-sensitive material is switched by driving the lens back and forth. As a result, a part of the optical system can be shared between the analog plate-making camera and the digital image recording device.

In the invention according to claim 8, the image of the document placed on the document table is imaged at a predetermined image forming position by the optical system, and at the same time, the document on the document table, the optical system and the photosensitive material are formed. Of the three elements, any two elements are relatively moved at a speed ratio according to the set magnification. Then, at a predetermined image forming position, the photosensitive material is scanned and exposed by being conveyed in the sub-scanning direction. Further, the recording light emitting means emits recording light based on the applied digital image signal. This recording light is
An image is formed on the photosensitive material by the recording light image forming means. As a result, a digital image is recorded on the photosensitive material. That is, in the invention of claim 8, the function of the digital image recording device is added to the function of the analog type plate-making camera.
Then, at least the conveying means can be shared between the analog plate-making camera and the digital image recording apparatus.

[0024]

【Example】

(1) First Embodiment FIG. 1 shows a plate making camera 100 according to a first embodiment of the present invention.
It is a figure which shows the internal structure of. In FIG. 1, the photosensitive material 101 set in a roll at a predetermined position is the conveyance roller 1
After being sent out by 02 and cut by the cutter 103, it is wound around the electrostatic adsorption drum 104 and adsorbed.
A document to be read is set on the document table 105. The original table 105 is configured to be movable in the horizontal direction by a drive mechanism (not shown). The document table 105 has a reflection light source 106 for analog photography on its upper part.
Is provided, and a transmission light source 10 for analog photography is provided under the
7 is provided. The reflected light flux α of the document is reflected by the mirror 107,
Lens 108, mirror unit 109 and slit 1
An image is formed on the photosensitive material 101 wound around the electrostatic attraction drum 104 via 10. The lens 108 and the mirror unit 109 are movable along the rail 111, and are arranged at predetermined positions according to the set magnification.

A reflection light source 113 for digital reading is provided above the original table 105. Reflected light source 1
The reflected light flux β of the document illuminated by 13 is reflected by the lens 12
The optical path is switched by the mirror 121 via 0, and an image is formed on the CCD unit 114. Furthermore, this CC
The D unit 114 includes a line image sensor in which a plurality of CCD elements are arranged one-dimensionally and an A / D converter.

In the above-mentioned structure, during analog photographing, the original table 105 and the electrostatic adsorption drum 104 are moved and moved at a speed corresponding to the set magnification while irradiating the original with the reflected light source 106 or the transmitted light source 107. By rotating, the photosensitive material 101 attracted to the electrostatic attraction drum 104 is scanned and exposed. Photosensitive material 10 after exposure
1 is discharged to the outside by the discharge roller 112.
The exposed photosensitive material 101 discharged to the outside is typically
It is supplied to an automatic developing machine (not shown) and a developing process is performed.

Further, at the time of digital reading, the reflection light source 1
By moving the document table 105 while irradiating the document at 13, the reading light β of the document causes the CCD unit 114
Are photoelectrically converted and A / D converted by. As a result, the original image is scanned and a digital image signal is obtained. This digital image signal is output to the outside. The digital image signal output to the outside is typically supplied to an information processing device such as a personal computer or a workstation, and subjected to predetermined processing for plate making. The digital image signal output from the CCD unit 114 may be supplied to the image recording unit 115 described later.

Further, an image recording unit 115 is provided below the electrostatic attraction drum 104. The image recording unit 115 includes a laser light source and an optical deflector,
Recording light γ according to a digital image signal given from the outside
Is output. The recording light γ passes through the lens 116 and
An image is formed on the photosensitive material 101 wound around the electrostatic attraction drum 104. As a result, the photosensitive material 101 is exposed and the photosensitive material 10 is exposed.
A digital image is recorded on 1. The image recording unit 115 may generate the recording light γ based on the digital image signal output from the CCD unit 114.

As described above, the plate-making camera 100 of the first embodiment has a function as an analog plate-making camera, a function as a digital image input device, and a function as a digital image recording apparatus. The document supporting and scanning mechanism (the document table 105 and its driving mechanism) is shared between the analog plate-making camera and the digital image input device. Further, between the analog plate-making camera and the digital image recording apparatus, the support and transport mechanism for the photosensitive material 101 (transport roller 103, electrostatic attraction drum 104 and its drive mechanism, discharge roller 112) are shared. Therefore, compared to the conventional multi-function peripheral, there are many common parts, and the device space is significantly saved.

Note that either one of the CCD unit 114 and the image recording unit 115 may be selectively attached depending on the user's request. Therefore, preferably, the CCD unit 114 and the image recording unit 115 are provided with respect to the housing of the apparatus.
It may be detachable.

(2) Second Embodiment FIG. 2 is a diagram showing the internal structure of a diffusion transfer design camera 200 according to the second embodiment of the present invention. In FIG. 2, the photosensitive material 201 set in a roll at a predetermined position.
Is sent out by the conveyance roller 202, and the cutter 22
After the rear end is cut by 0, it is superposed on the base film 203 and supplied to the developing unit 204.
In this embodiment, a DTR (diffusion transfer) sensitive material is used as the sensitive material 201.
The exposed image above is transferred to the base film 203.

The original to be read is placed on the movable original table 205. A reflection light source 206, which is commonly used for analog photography and digital reading, is provided below the document table 205. The reflected light flux α of the original is reflected by the mirror 2
07, first mirror unit 208, lens 209, second
Mirror unit 210, mirror 211 and slit 2
An image is formed on the photosensitive material 201 via 12. Where the second
The mirror unit 210 includes two mirrors 210a and 21a.
0b, but the mirror 210a therein is configured to be rotatable about one end thereof as a rotation center. Thereby, the optical path of the reflected light flux α is switched. A CCD unit 213 is provided on the rear surface of the second mirror unit 210 so as to receive the reflected light flux α whose optical path is switched.

In the above-described structure, during analog photography, the original is illuminated by the reflection light source 206,
By moving and rotating the platen 205 and the conveyance roller 202 at a speed according to the set magnification, respectively,
The photosensitive material 201 being conveyed is scanned and exposed. Photosensitive material 2 after exposure
01 is superposed on the base film 203 and is diffused and transferred in the developing unit 204.

During digital reading, the mirror 210a in the second mirror unit 210 is rotated in a direction (counterclockwise) away from the optical path of the reflected light beam α, and the optical path of the reflected light beam α is switched. As a result, the reflected light flux α
Enters the CCD unit 213. As a result, CCD
The unit 213 scans the document in synchronization with the movement of the document table 205, and generates a digital image signal according to the document image. This digital image signal is output to an external device (for example, an information processing device).

The first and second mirror units 20
By changing the mounting positions of 8 and 210, the reading resolution can be freely changed.

As described above, the plate-making camera 200 of the second embodiment has both a function as an analog design camera and a function as a digital image input device.
Then, between the two, a document supporting and scanning mechanism (document table 205 and its driving mechanism) and a part of the optical system (reflection light source 206, mirror 207, first mirror unit 20)
8, lens 209) is shared. Therefore, compared to the conventional multi-function peripheral, there are many common parts, and the device space is significantly saved.

(3) Third Embodiment In the second embodiment, the original table 205 is moved to scan the original, but the design camera of the type in which the original is scanned by moving the mirror. Also in the above, similar effects can be obtained by switching the optical path of the reading light as in the second embodiment. FIG. 3 shows the internal structure of a design camera 300 according to the third embodiment of the present invention having such a configuration.

In FIG. 3, a DTR (diffusion transfer) sensitive material 301 set in a roll at a predetermined position is sent out by a conveying roller 302, a trailing end thereof is cut by a cutter 320, and then superposed on a base film 303. Then, it is supplied to the developing unit 304. The document to be exposed is placed on a fixed document table 305. A movable reflection light source 306, which is commonly used for analog photography and digital reading, is provided below the document table 305. The reflected light flux α of the original is reflected by the mirror 307, the first movable type.
An image is formed on the photosensitive material 301 via the mirror unit 308, the movable lens 309, the movable second mirror unit 310, the mirror 311 and the slit 312. Here, the second mirror unit 310 includes two mirrors 310.
Mirrors 310a and 310b are included, but the mirror 310a therein is configured to be rotatable about one end thereof as a rotation center. Thereby, the optical path of the reflected light flux α is switched. A CCD unit 313 is provided on the rear surface of the second mirror unit 310 so as to receive the reflected light flux α whose optical path is switched.

In the above structure, the reflection light source 30
While irradiating the original with 6, the reflection light source 306, the first
By moving the mirror unit 308, the lens 309, and the second mirror unit 310 at speeds corresponding to the set magnification, the photosensitive material 301 being conveyed is scanned and exposed.
The exposed photosensitive material 301 is superposed on the base film 303, and is diffused and transferred in the developing unit 304. In addition, at the time of digital reading, the second mirror unit 31
The mirror 310a in 0 is rotated in a direction (counterclockwise direction) away from the optical path of the reflected light beam α, and the optical path of the reflected light beam α is switched, so that the reflected light beam α is transferred to the CCD unit 3
It is incident on 13. As a result, the CCD unit 313
Scans the document and generates a digital image signal corresponding to the document image. This digital image signal is output to the outside.

(4) Fourth Embodiment FIG. 4 is a diagram showing the internal structure of a direct plate plate-making camera 400 according to a fourth embodiment of the present invention. FIG.
The photosensitive material 4 set in a roll at a predetermined position in
01 is sent out by the conveying roller 402, cut by the cutter 403, and then supplied to the direct plate developing unit 404. As the sensitive material 401, a direct plate sensitive material or a film sensitive material is used. When the film sensitive material is used, it is transported to the storage box 406 by the transport switching guide 405.

An original to be read is set on the movable original table 407. A reflection light source 408 is provided below the document table 407 for both analog photography and digital reading. The reflected light flux α of the document forms an image on the photosensitive material 401 being conveyed via the mirror 409, the mirror 410, the mirror 411, and the lens 412. Here, the mirror 411 is configured to be rotatable about its one end as a rotation center. Thereby, the optical path of the reflected light flux α is switched. The reflected light flux α whose optical path is switched passes through the lens 413 and the CCD unit 4
It is incident on 14.

In the above-described structure, during analog photographing, the original table 407 is moved at a speed corresponding to the set magnification while illuminating the original by the reflection light source 408, so that the photosensitive material 401 being conveyed is scanned and exposed. To be done. The photosensitive material 401 after exposure is a direct plate developing unit 404.
And then developed.

Further, at the time of digital reading, the mirror 4
11 is rotated in a direction deviating from the optical path of the reflected light beam α, and the optical path of the reflected light beam α is switched. As a result, the reflected light flux α passes through the lens 413 and the CCD unit 414.
Incident on. As a result, the CCD unit 414 scans the document in synchronization with the movement of the document table 407, and generates a digital image signal. This digital image signal is output to an external device (for example, an information processing device).

An image recording unit 415 is provided below the lens 412. The image recording unit 415 includes a laser light source, an optical polarizer, etc., and outputs recording light γ according to a digital image signal given from the outside. The recording light γ forms an image on the photosensitive material 401 being conveyed via the lens 416. As a result, the photosensitive material 401 is exposed, and a digital image is recorded on the photosensitive material 401.
The image recording unit 415 is the CCD unit 41.
The recording light γ may be generated on the basis of the digital image signal output from No. 4.

As described above, the plate making camera 400 of the fourth embodiment has a function as an analog type direct plate plate making camera, a function as a digital image input device, and a function as a digital image recording apparatus. Hold together. Then, between the direct plate plate-making camera and the digital image input device, a document supporting and scanning mechanism (document table 407 and its driving mechanism), a part of an optical system (reflection light source 408, mirrors 409, 410) are provided. Is shared. Further, between the direct plate plate-making camera and the digital image input machine, a conveyance mechanism for the photosensitive material 401 (conveyance roller 402 and its driving mechanism) is shared. Therefore, compared to conventional multi-function peripherals, there are many common areas,
The equipment space is significantly saved.

(5) Fifth Embodiment The embodiment shown in FIG. 4 is suitable for the case where the exposure width of the photosensitive material is small (for example, A4 width). In the case of a larger size (for example, in the case of A3 width), it is necessary to lengthen the optical path length of the recording light γ emitted from the image recording unit 415. FIG. 5 shows the internal structure of a plate-making camera 500 for a direct plate according to the fifth embodiment of the present invention having such a configuration. In FIG. 5, the photosensitive material 501 set in a roll at a predetermined position is sent out by the conveying roller 502, cut by the cutter 503, and then supplied to the direct plate developing unit 504. As the sensitive material 501, a direct plate sensitive material or a film sensitive material is used. When the film sensitive material is used, it is transported to the storage box 506 by the transport switching guide 505.

An original to be photographed is set on the movable original table 507. A reflection light source 508 is provided below the document table 507 for both analog photography and digital reading. The reflected light flux α of the document forms an image on the photosensitive material 401 being conveyed, via the mirror 509, the mirror 510, the mirror 511, and the lens 512. Here, the mirror 511 is configured to be rotatable about its one end. Thereby, the optical path of the reflected light flux α is switched. The reflected light flux α whose optical path is switched by the mirror 511 is incident on the CCD unit 514 via the lens 513. In addition, the sensitive material 50
A rotatable mirror 516 and a cylindrical lens 517 are arranged on the optical path of the reflected light flux α toward 1.

In the above-described structure, the mirror 516 and the cylindrical lens 517 are used during analog photographing.
Is rotated in a direction deviating from the optical path of the reflected light beam α. Then, the original table 507 moves at a speed according to the set magnification while illuminating the original by the reflected light source 508, so that the photosensitive material 501 being conveyed is scanned and exposed. The photosensitive material 501 after exposure is the direct plate developing unit 504.
And then developed.

When reading digital data, the mirror 5
11 is rotated in a direction deviating from the optical path of the reflected light beam α,
The optical path of the reflected light flux α is switched. As a result, the reflected light flux α is transmitted through the lens 513 to the CCD unit 51.
It is incident on 4. As a result, the CCD unit 514 scans the document in synchronization with the movement of the document table 507, and generates a digital image signal. This digital image signal is output to an external device (for example, an information processing device).

An image recording unit 515 is provided below the document table 507. The image recording unit 515 includes a laser light source, an optical modulator and the like, and outputs recording light γ according to a digital image signal given from the outside. At the time of image recording, the mirror 518, the mirror 516, and the cylindrical lens 517 are rotated in a direction to enter the optical path of the reflected light beam α. As a result, the recording light γ emitted from the image recording unit 515 is reflected by the mirror 518 and the mirror 5
An image is formed on the photosensitive material 501 which is being conveyed, through the lens 16 and the cylindrical lens 517. As a result, the sensitive material 50
1 is exposed, and a digital image is recorded on the photosensitive material 501. The image recording unit 515 may generate the recording light γ based on the digital image signal output from the CCD unit 514.

As described above, the plate-making camera 500 of the fifth embodiment has a function as an analog type direct-plate plate-making camera, a function as a digital image input device, and a function as a digital image recording apparatus. Hold together. Then, between the plate-making camera for the direct plate and the digital image input device, a document supporting and scanning mechanism (document table 507 and its driving mechanism), a part of an optical system (reflection light source 508, mirrors 509, 510), and Is shared. Further, between the direct plate plate-making camera and the digital image input machine, the conveying mechanism for the photosensitive material 501 (conveying roller 502 and its driving mechanism) is shared. Therefore, compared to conventional multi-function peripherals, there are many common areas,
The equipment space is significantly saved.

[0052]

According to the first aspect of the present invention, since the function of the digital image input device is added to the analog type plate-making camera, and at least the document table and the document scanning means are shared, a composite function is provided. Moreover, it is possible to realize an inexpensive plate-making camera that saves space.

According to the third aspect of the present invention, the light path emitted from the document on the document table is switched between the first image forming position direction and the second image forming position direction by the light path switching means. Therefore, one optical system can be shared by the analog type plate making camera and the digital image input device, and a more space saving and inexpensive plate making camera can be realized.

According to the fifth aspect of the present invention, the recording light emitting means and the recording light image forming means are further provided so that a digital image can be recorded on the light-sensitive material. Therefore, an analog type plate-making camera and a digital image input machine are provided. It is possible to obtain a plate-making camera to which the function of the digital image recording apparatus is added in addition to the above function. Moreover, since at least the conveying means is shared between the analog plate-making camera and the digital image recording device, the installation space and cost can be reduced as compared with the case of using an independent dedicated machine. .

According to the sixth aspect of the invention, the recording light emitting means emits the recording light on the basis of the digital image signal output from the image sensor. You can build a convenient system that covers most of them.

According to the invention of claim 7, the second mirror and the lens are arranged on the optical path of the optical system, and the second mirror and the lens are driven to move back and forth in the optical path of the optical system. Since the optical information given to the material is switched, it is possible to further share a part of the optical system between the analog type plate making camera and the digital image recording device, and further space saving and The cost can be reduced.

According to the invention of claim 8, the function of the digital image recording device is added to the function of the analog type plate-making camera, and at least the conveying means is shared.
It is possible to realize an inexpensive plate-making camera that has multiple functions and is space-saving.

[Brief description of drawings]

FIG. 1 is a diagram showing an internal structure of a plate-making camera according to a first embodiment of the present invention.

FIG. 2 is a diagram showing an internal structure of a plate-making camera according to a second embodiment of the present invention.

FIG. 3 is a diagram showing an internal structure of a plate-making camera according to a third embodiment of the present invention.

FIG. 4 is a diagram showing an internal structure of a plate-making camera according to a fourth embodiment of the present invention.

FIG. 5 is a diagram showing an internal structure of a plate-making camera according to a fifth embodiment of the present invention.

[Explanation of symbols]

100-500 ... Plate making camera 101-501 ... Sensitive material 104 ... Electrostatic adsorption drum 105, 205, 305, 407, 507 ... Original platen 106, 113, 206, 306, 408, 508 ... Reflection light source 107 ... Transmission light source 114, 213, 313, 414, 514 ... CCD unit 115, 415, 515 ... Image recording unit

Claims (8)

[Claims] 1. A plate making camera which scans a document and exposes the image on a light-sensitive material, wherein a document table on which a document to be read is placed, and images of the document on the document table are first and second images. Of the three elements of the optical system for forming an image at the image forming position, the original on the platen, the optical system, and the sensitive material, are moved relative to each other at a speed ratio according to the set magnification. Document scanning means, a transport means for transporting the sensitive material in the sub-scanning direction at the first image forming position, and a digital image of the document read by the optical system at the second image forming position. A plate-making camera that includes an image sensor that converts and outputs an image signal. 2. The optical system includes a first optical system for forming an image of an original on the original table at the first image forming position, and an image of the original on the original table for the second optical system. The plate making camera according to claim 1, further comprising a second optical system configured to form an image at an image forming position. 3. The optical system includes optical path switching means for switching an optical path of light emitted from a document on the document table between the first image forming position direction and the second image forming position direction. The plate-making camera according to Item 1. 4. The optical path switching means includes a first mirror that reflects a light beam from a document on the document table, and switches the angle of the reflecting surface of the first mirror,
The plate-making camera according to claim 2, wherein the optical path is switched. 5. A recording light emitting means for emitting recording light based on a given digital image signal, and a recording light image forming means for forming an image of the recording light on the photosensitive material. The plate-making camera according to any one of to 4. 6. The plate making camera according to claim 5, wherein the recording light emitting means emits recording light based on a digital image signal output from the image sensor. 7. The recording light image forming means includes a second mirror and a lens arranged on the optical path of the optical system, and drives the second mirror and the lens to move back and forth in the optical path of the optical system. The plate making camera according to claim 5, wherein the optical information given to the photosensitive material is switched by the above. 8. A plate making camera for scanning a document and exposing the image on a photosensitive material, wherein a document table on which the document is placed and an image of the document on the document table are formed at a predetermined image forming position. An optical system for forming an image, a document on the platen, an optical system, and a document scanning unit that relatively moves any two of the three elements at a speed ratio according to a set magnification. Conveying means for conveying the sensitive material in the sub-scanning direction at the predetermined image forming position, recording light emitting means for emitting recording light based on a given digital image signal, and the recording light on the sensitive material. A plate-making camera, comprising: a recording light image forming means for forming an image on the plate.