JPH04123033A - Copying device - Google Patents

Abstract

PURPOSE:To easily change enlarging magnification or reducing magnification whether it is a reflective original or a transmissible original by switching the optical path of an optical system by the use of a reflection mirror capable of moving in the optical direction of an image-formation optical system. CONSTITUTION:An exposing part unit 18 is constituted of a reflective original exposing device 12 and a transmissible original exposing device 14. By setting a transmissible original copying mode, the reflection mirror 124 is inserted in the optical path L of the image-formation optical system 82 of the device 12 for copying the reflective original, so that a projecting optical system 100 for copying the transmissible original is constituted. At such a time, the projecting lens 118 of the device 14 is moved along the optical path Lp in accordance with the specified magnification, and the reflection mirrors 122 and 124 are also moved and fixed by the moving means of an image-formation lens 92 so that the length of the optical path in accordance with the enlarging magnification may be obtained. Thus, the copying magnification is easily and simply changed whether it is the reflective original or the transmissible original.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a copying apparatus using a photosensitive material, and more specifically, it has two different scanning optical systems, and for example, it can scan a transmissive original as well as a reflective original. The present invention relates to a copying apparatus that can obtain copied images.

<Prior Art> A copying device using a photosensitive material copies an image of an original onto a photosensitive material, and has the advantage of being able to make high-quality copies compared to an electrophotographic copying device. Examples of such photosensitive materials include silver salt photographic materials, photosensitive pressure sensitive materials, photosensitive resin materials, heat sensitive photosensitive materials, and diazo photosensitive materials.

Generally, in a copying machine using such photosensitive materials, the photosensitive material is fed from the magazine of the photosensitive material supply unit to the exposure position, and after exposing the original image, it is sent to the processing unit where it is developed and then copied. You are getting an image (copy).

In general, copying machines that directly expose image information onto a photosensitive material use either a one-shot exposure method that simultaneously exposes the entire image information of the original, or a light source or the original that moves at a constant speed to expose the image information of the original. The one-shot exposure method described above has the advantage that the structure itself is simple and only requires one exposure, but the optical system itself must occupy a large space.
The entire device is large and requires a large space for installation, and in order to obtain clear images, a powerful and expensive light source that can illuminate a wide area with a uniform amount of light is required. For these reasons, a scanning exposure method is often adopted.

On the other hand, in a scanning exposure type copying apparatus, generally, a photosensitive material that moves in synchronization with the scanning movement of an original image having a constant slit width by moving an original or a light source at a constant speed is directly exposed.

By the way, normally, the originals that are targeted by such scanning exposure type copying devices are mainly reflective originals such as printed originals and photographs, and even if it is possible to copy transparent originals, the copying speed is lower than that of reflective originals. Not only is the operation extremely troublesome, but the copying magnification of the original image is 50% to 200%.
%, making it difficult to obtain high-magnification copies of images from small transparent originals such as slides and negative films, and the image quality was often poor.

For this reason, the present applicant proposed in Japanese Patent Application No. 63-190154 that it is possible to simply replace the document cover (platen cover) and a transparent document projection device that forms a transparent document image onto a document table for reflective documents. , it is possible to easily switch between copying both reflective and transparent originals, and high-magnification copying of transparent originals is possible using both the projection system and the variable magnification mechanism of the copying imaging optical system, resulting in high-quality copied images. We have proposed a copying device that can create

Further, a copying image forming apparatus capable of high-magnification copying of transparent originals is disclosed in Japanese Patent Laid-Open No. 82-262036. This device has a conventional mirror scanning optical system for reflective originals and a high-magnification projection optical system for small transparent originals, and a half mirror or a reflective mirror that can be freely inserted and retracted is installed in the optical path of the mirror scanning optical system. The optical path of the high-magnification projection optical system is interrupted by the exposure of the light-sensitive material to the light image of the small-sized transparent original by the high-magnification projection system.

<Problems to be Solved by the Invention> By the way, the copying image forming apparatus disclosed in Japanese Patent Application Laid-Open No. 62-262036 has a conventional mirror scanning optical system for reflective originals and a high magnification projection optical system for transparent originals. Because of this,
Even if it is a small transmission YJ document such as negative film or reversal film (slide), there is no need to use a dedicated enlarging device, and a large number of high-magnification copies can be produced using a high-magnification projection optical system. Although it is possible to easily and quickly obtain even one sheet of image light, the optical path of the mirror scanning optical system for reflective originals is switched, and the image light that has passed through the imaging lens in the projection optical system for transparent originals is converted into one sheet. Since it uses only a mirror to reflect the light and form an image at the exposure position on the photosensitive material, the optical path length of the projection optical system cannot be changed, and even if the magnification is high, the copy image can only be reproduced at a fixed magnification. I couldn't get it. That is, a normal imaging lens cannot change the magnification of the projection optical system.

In addition, in order to provide the projection optical system with a variable magnification function in this device, the imaging lens of the projection optical system must be a zoom lens, which not only makes the imaging lens expensive but also
A drive source for driving this zoom lens is also required, which increases the number of parts, requires time and cost for adjustment, and makes it impossible to make the device configuration compact, further increasing costs.

The copying apparatus proposed in Japanese Patent Application No. 63-190154 filed by the present applicant can copy a transparent original at a high magnification simply by attaching a transparent original projection device to the main body of the copying apparatus for reflective originals.

In particular, this device forms a high-magnification projected image of the transparent original on the surface of the document table of the reflective document, so it is also possible to use the variable magnification function of the copying device itself. The formed high magnification projection image can be further enlarged.

However, when performing high-magnification copying of a transparent original, it is necessary to place the transparent original projecting device on the original table.

An object of the present invention is to solve the problems of the prior art described above, and to provide an imaging optical system for scanning exposure of reflective originals, and a scanning exposure optical system different from this imaging optical system, such as a high magnification optical system for scanning exposure of transparent originals. Preferably, two of the plurality of reflecting mirrors constituting a scanning exposure optical system having a projection optical system and arranged downstream of the imaging lens of the imaging optical system are integrated with the imaging lens. By attaching it and making it movable in the optical axis direction, and using one of the reflecting mirrors as an insertable/retractable reflecting mirror for switching the optical paths of both optical systems, the image light of both optical systems is reflected to the same exposure position. The magnification of the high magnification projection optical system can be changed by moving the mirror according to the movement of the projection lens of the projection optical system and changing the optical path length of the projection optical system, especially when changing the magnification. The imaging optical system and the projection optical system can be freely switched, and whether it is a reflective original or a transparent original, the magnification or reduction magnification can be easily changed to obtain a copy image. The object of the present invention is to provide a copying apparatus that can perform the following functions.

<Means for Solving the Problems> In order to achieve the above object, the present invention includes an imaging optical system that scans and exposes an image of a reflective original onto a photosensitive material, and a scanning exposure optical system different from the imaging optical system. an exposure unit,
A copying apparatus comprising a photosensitive material supply section unit that supplies the photosensitive material to an exposure position, and a processing section unit that develops the exposed photosensitive material, the image forming optical system having, on the downstream side of the imaging means of the imaging optical system, A plurality of reflecting mirrors constituting the scanning exposure optical system are configured to reflect image light of the scanning exposure optical system that is incident from a position outside the scanning area of the reflective original of the imaging optical system, so that the imaging optical system arranged so as to form an image at the same exposure position, two of the plurality of reflection mirrors are movable simultaneously parallel to the optical axis of the imaging optical system, and the two reflection mirrors are There is provided a copying apparatus characterized in that one mirror is movable so as to be inserted into and retracted from the optical path of the imaging optical system.

In the copying apparatus described above, it is preferable that the two simultaneously movable reflecting mirrors move integrally with the image forming means.

Moreover, it is preferable that the plurality of reflection mirrors are three reflection mirrors.

Further, it is preferable that the scanning exposure optical system is an original moving type imaging optical system.

Preferably, the scanning exposure optical system is a high-magnification projection optical system that scans and exposes an image of a transparent original onto a photosensitive material.

Further, it is preferable that the scanning area for the reflective original is a reflective original mounting table area.

Further, it is preferable that the transmission original projection device having the scanning exposure optical system is arranged outside the reflection original mounting table of the imaging optical system.

<Operation of the Invention> The copying apparatus of the present invention includes at least two optical systems: an imaging optical system that scans and exposes an image of a reflective original onto a photosensitive material, and a scanning exposure optical system different from the imaging optical system; The optical path of the image forming optical system is switched using one of the two reflecting mirrors movable in the optical axis direction of the imaging optical system, and the image light of both optical systems is configured to be imaged at the same exposure position. Therefore, in addition to copying ordinary reflective originals, special copying of other originals or other copying magnifications can be easily and conveniently performed using a simple configuration, compact, and low-cost apparatus.

If the scanning exposure optical system, which is different from the imaging optical system for reflective originals, is a high-magnification projection optical system that scans and exposes the image of the transparent original onto a photosensitive material, high-magnification copying from a slide (reversal film) or negative film is variable. In the case of a high-magnification imaging optical system for small-sized reflective originals, high-magnification copying of small-sized reflective originals is possible with variable magnification.

In addition, copying for special purposes using a special optical system is also possible.

<Embodiments> Hereinafter, a copying apparatus according to the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.

FIG. 1 is a schematic cross-sectional view of a silver halide photographic color copying apparatus which is an example of the configuration of a copying apparatus according to the present invention capable of copying a transparent original and a reflective original.

As shown in the figure, a copying apparatus 10 of the present invention includes a reflective original exposure device 12 having an imaging optical system 82 that scans and exposes an image of a reflective original onto a photosensitive material, and a reflective original exposure device 12 that scans and exposes an image of a transparent original onto a photosensitive material. An exposure unit 18 including a transmission original exposure device 14 having a projection optical system 100 is provided above, a photosensitive material supply unit 16 is provided to the lower right of the exposure unit 18, and a processing unit 20 is provided to the lower left of the exposure unit 18. Furthermore, the processing section unit 20 has a processing section 22 at the upper right, a drying section 24 at the upper left thereof, and a reserve liquid storage section 26 below which stores a supply bottle for replenishing the processing solution.

The photosensitive material supply section unit 16 has a photosensitive material conveyance path within the photosensitive material supply section frame 28, and a pair of magazines 30.32 are removably attached to the upper and lower sides, and photosensitive materials 34.36 are stored inside these magazines. The magazines 30 and 32 are each housed in a roll and are taken out from the tip to the photosensitive material supply unit 16, and an opening/closing lid 38 is provided on the outside of the magazines 30 and 32. As an example of a photosensitive material, 34 is a photosensitive material that is most suitable for copying a color print original that is a reflective original, and 36 is a photosensitive material that is optimal for copying a color photo original or a color slide original that is a transparent original, or a color negative that is a transparent original. It is a photosensitive material that is ideal for copying film originals.

Conveyance rollers 42a and 42b are horizontally extended and pivoted to the photosensitive material supply section frame 28 in correspondence with the slits at the outlet of the photosensitive material 34 of the magazine 30.

A cutter 44 is arranged on the opposite side of the conveyor rollers 42a and 42b from the magazine 30.
There are photosensitive material transport guides 48a, 4 between the
8b and 48c are arranged to guide the cut photosensitive material 34 to the exposure section 46. A conveyance roller 50.50 is disposed between the conveyance guides 48a and 48b, and is configured to send the photosensitive material 34 sent from the cutter 44 upward through the conveyance guides 48a and 48b. Conveyance guide 48b further above it
and 48c, conveyor rollers 52, 52 are arranged for the same purpose.

The upper part of the conveyance guide 48c is shaped like an abbreviation that opens downward, and guides the photosensitive material 34 downward to the exposure section 46.

The exposure section 46 is a part that defines an exposure position 46a of the photosensitive material 34, and a glass plate 54 is fixed in the exposure section 46 facing the imaging optical system 82 of the exposure section unit 18. A pressing plate 56 is crimped. The photosensitive material 34 sent from the conveyance guide 48c is transferred to this glass plate 5.
4 and a pressing plate 56 with its emulsion surface facing the glass plate 54.

A pair of conveyance rollers 58 are provided upstream (upper side) of the exposure section 46.
a, 58b, and a pair of conveyance rollers 6 on the downstream side (lower side).
0a and Sob are provided, and are adapted to send out the photosensitive material 34 (36) vertically downward, respectively. Here, the conveyance rollers 58a and 60a are drive rollers,
The transport roller 58 is synchronously driven by a motor (not shown).
b, 60b are driven rollers.

A conveyance guide 62 is arranged vertically below the exposure section 46 to guide the exposed photosensitive material 34 downward.

A switching guide 64 is provided at the vertical intermediate portion of the conveyance guide 62, and the photosensitive material 34 fed vertically downward within the conveyance guide 62 is transferred to a branch conveyance guide 66 that communicates with the processing section 22 of the processing section unit 20 when necessary. It is now possible to change direction.

On the other hand, conveyance rollers 68a and 68b are horizontally hooked to the magazine 32 disposed below the magazine 30, corresponding to the exit slits for the photosensitive material 36, so as to feed the photosensitive material 36 to the cutter 70. It has become. Conveyance guides 72a and 72b are arranged between the cutter 70 and the intermediate portion of the conveyance guide 48a.

A transport roller 74 is provided between the transport guides 72a and 72b.
．． 74 is arranged to pass the photosensitive material 36 sent from the transport rollers 68a and 68b to the transport guide 48a.

By the way, when the opening/closing lid 38 is opened when replacing, jamming, or maintaining the magazines 30, 32, the transport rollers 42a,
68a separates from the transport rollers 42b and 68b, respectively, to open the photosensitive material 34.36, and when the opening/closing lid 38 is closed, the transport rollers 42a and 42b and 68a and 68b come into contact and press the photosensitive material 34.36, respectively. is configured to do so.

Further, the conveying speed of conveying rollers 58a and 60a on both sides of the exposure section 460 is synchronized with the scanning speed of the document by a light source unit, which will be described later. In order to accurately synchronize with this scanning speed, the conveying speed of the conveying rollers 50, 52, 74 is
The scanning speed is set a little faster than the above-mentioned scanning speed, and a rotation guide 76 biased by a solenoid, a spring, etc. is provided upstream of the exposure section 46 to make it possible to form a loop portion in the conveyance locus of the photosensitive material 34, 36.

Next, the exposure section unit 18, which is a characteristic part of the copying apparatus of the present invention, will be explained. The exposure unit 18 includes a reflective original exposure device 12 and a transparent original exposure device 14. The reflective original exposure device 12 includes an original platen 8 made of a transparent glass plate or the like on which a reflective original 78 is placed with its back side facing up.
0, hold the reflective original 78 on the original platen 80, and
A document presser 81 shields the document table 80 on which the document 8 is not placed, and a document presser 81 that shields the document table 80 on which the document 8 is not placed, and the document presser 81 that protects the image on the document table 80 from the light-sensitive material 34 (34) of the exposure section 46.
6) an imaging optical system 82 for slit scanning exposure;
It has an image sensor 94 used for image adjustment, and a shutter 96 that acts on the optical path to switch the optical path between the exposure unit 46 side and the image sensor 94 side.

Here, the imaging optical system 82 includes a light source unit having a light source 84 and a reflecting mirror 86 that integrally scan the lower surface of the document table 80, and a light source unit that moves in the same direction at 1/2 the speed of this light source unit. It is composed of mirrors 88 and 90 that reflect the light from 84 in a predetermined direction, and an imaging lens 92.

The imaging lens moving type imaging optical system 82 applied to the copying apparatus 10 of the present invention is configured to enable 0.5 to 2.0 times zoom copying.

In the case of a reflective original, the original image on the original platen 80 is illuminated by a light source 84 in a light source unit, and the reflected light is incident on a first mirror 86 in the same light source unit.

The light carrying the original image incident on the first mirror 86 is
The direction is changed by this mirror 86, and the second and third mirrors 8
8.90, passes through the imaging lens 92, and when the shutter 96 is opened, the photosensitive material 34 (
36).

Note that during pre-scanning, white balance correction, etc., the shutter 96 is in the closed state shown by the dotted line in the figure, and the original image or the image on the white plate is reflected by the shutter 96 and input to the image sensor 94, where the exposure correction conditions are adjusted. It is to be determined.

Here, the imaging lens 92 includes a plurality of lenses (not shown), an aperture, and a color correction filter (for example, C (amine),
It consists of units such as M (magenta) and Y (A10-), and is attached to a movable table 93 and is movable in the direction of the optical path LP.
It forms an image on the photosensitive material 34 (36) at a predetermined magnification and performs exposure under optimal exposure conditions, and is equipped with an aperture and a color correction filter to enable adjustment of exposure conditions.

The reflective original exposure device 12 is configured as described above.

On the other hand, the transparent original exposure device 14 is the most characteristic part of the present invention, and includes a projection optical system 100 for a transparent original, a transparent original moving device 102, an image sensor 94 that is shared with the reflective original exposure device 12, It consists of a shutter 96.
The projection optical system 100 includes a light source 106, a reflector 108, a condenser lens 110, a heat filter 112, a color filter 114, and a differential user 116 in front of the transparent original 104 (on the upstream side of the light beam).
A projection lens 118 is provided behind the transparent original 104 and downstream of the imaging lens 92 of the imaging optical system 82 for reflective originals, and reflects the image light of the transparent original that has passed through the projection lens 118 to form the same image. A fixed reflecting mirror 120 for making the light incident on the position 46a, a reflecting mirror 122 that is movable parallel to the optical path, and a reflecting mirror 124 that is movable parallel to the optical path together with the reflecting mirror 122 and that can be inserted/retracted from the optical path. configured.

Reflection mirrors 120 and 122 of the transparent original exposure device 14
, 124 is outside the scanning area of the reflective original, for example, outside the area of the original platen 80 for reflective originals.
The optical path from the light source 106 of the transmission original projection optical system 100 to the reflection mirror 120 is from the reflection original imaging lens 92 to the imaging position 46.
It is arranged so as to be almost perpendicular to the optical path up to a.

Further, the optical path from the reflecting mirror 120 to the reflecting mirror 122 is parallel to and opposite to the optical path, and the reflecting mirror 12
2 to the reflective mirror 124 is perpendicular to the optical path, and when copying a transparent original, the optical path of the transparent original image light reflected by the reflective mirror 124 coincides with the optical path of the reflected original image light, and the optical path is at the same exposure position 46a. incident on .

The light source 106 may be any color light source such as a halogen lamp or a flash lamp. A reflector 108 made of a concave reflecting mirror or the like is attached to the light source 106 and reflects the light from the light source 106 toward the transparent original 104 side.

The condenser lens 110 condenses a luminous flux of light (visible light) emitted from the light source 106 and reflected by the reflector 10B onto a certain location.

The thermal filter 112 absorbs heat rays and the like contained in the light emitted from the light source 106 and transmits only visible light necessary for exposure.

Here, the light emitted from the light source 106 includes not only visible light but also light of various wavelengths, and the amount of light is not uniform, so before and after the condenser lens 110,
A light control filter such as a filter that cuts ultraviolet or infrared light rays or a peripheral illumination correction filter may be arranged.

The color filter 114 is a Y (yellow) filter 114
Three color filter plates, Y, M (magenta) filters 114M, and C (cyan) filters 114C, and an ND filter 114D are inserted into and removed from the projection optical path LP independently to perform color correction and density correction of the luminous flux. The insertion amount is determined according to the exposure correction conditions from the image sensor 94. Of course, the color filter 114 is not limited to this, but may include two color filter plates each equipped with two different color filters (for example, C, M, and C and Y). Here, instead of the ND filter 114D, an aperture for density correction, such as an aperture plate, a light shielding plate, etc.
A predetermined amount of two parallel diaphragm plates, an iris diaphragm, etc. may be inserted in the optical path.

The diff user 116 diffuses and diffuses the light beam that has been condensed by the condenser lens 110 and color-corrected by the color filter 114.
The light is mixed to produce uniform light with no color unevenness or illumination unevenness. For example, a diffuser plate is installed at the entrance and exit, and the interior is composed of a white diffuser wall, such as a mirror box or a diffuser box. That's fine. In this way, the light made uniform by this differential user 116 is applied to the transparent original 10 located behind.
4.

The transparent original moving device 102 positions and mounts the transparent original 104, and moves the transparent original 104 to the transport roller 5 in the exposure section 46 described above.
8a, 58b and 60a.

It operates in synchronization with the scanning conveyance speed of the photosensitive material 36 (34) by the 60b, and as shown in FIGS. It is composed of a scan table 126, a feed nut 128 attached to the lower part of the scan table 126, a feed screw 130 that is screwed into the feed nut 128, and a motor (drive source) 132 that rotationally drives the feed screw 130. Here, the motor 132
When the feed screw 130 is rotated by the feed nut 128
At the same time, the scan table 126 moves, and the transparent original 104 mounted on the scan table 126 moves.

The moving speed is 1/n, where the photosensitive material transport speed is 1 and the copying magnification by the projection optical system 100 is n. The transparent original moving device 102 is provided with means for positioning and mounting the transparent original 104 (not shown), but at least the image portion of the transparent original 104 needs to be made of a transparent member or have an opening. Since the transparent original 104 is positioned by the positioning and mounting means and mounted on the moving device 102, the transparent original 104 will not shift or come off due to movement of the moving device 102.

The projection lens 118 is an imaging lens for focusing the original image carried by the light transmitted through the transparent original 104 onto the exposure position 46a on the photosensitive material 34.

Note that a slit 134 is provided near the transparent original 104, intersecting the moving direction of the transparent original 104 at approximately 90 degrees. Therefore, just like the reflective original exposure device 12, the transparent original exposure device 14 also has an exposure position 46 of the exposure section 46.
Slit scanning exposure can be performed on the photosensitive material 36 at a.

The reflection mirror 120 is provided directly below the imaging lens 118 at an angle of 45 degrees with respect to the vertical, and reflects the projection optical path in a direction perpendicular to the projection optical path so that it travels parallel to and opposite to the optical path.

The reflecting mirrors 122 and 124 are both elongated mirrors, are made into a unit, are mounted together behind (downstream side) of the movable stage 93 of the imaging lens 92 of the reflecting original imaging optical system 82, and are driven by a drive (not shown). A movable stage 93 driven by a source can move integrally with the imaging lens 92 in a direction parallel to the optical path. Therefore, the conjugate length of the projection optical system 100 can be changed, and the magnification can be changed in the transparent original exposure device 14 with a simple and compact configuration.

The reflecting mirror 122 is located above the imaging lens 92, that is, above the optical path LP, at a position where it receives the reflected light from the reflecting mirror 120.
It is fixed at an angle of 45 degrees with respect to the horizontal via holding means 138, 138.

The reflecting mirror 124 is movable between a position below the imaging lens 92, that is, below the optical path LP, and a position where it acts on the center of the imaging lens 92, that is, the optical path.

As shown in FIG. 3, the vertical moving device 140 for the reflecting mirror 124 includes holding means 142, 142 for holding both ends of the reflecting mirror 124 in the longitudinal direction at an angle of 45 degrees with respect to the vertical, and the holding means 142, 142 for holding the reflecting mirror 124 at an angle of 45 degrees with respect to the vertical direction. A retaining plate 144 that fixes the
and bins 146°14 provided at both ends of the holding plate 144.
6 and a link 150 that engages a bin 148° 148 provided on a moving table 93, a rotating disc 152, and an eccentric position of a bin 154 provided in the middle of one of the links 150 and the rotating disc 152. It is composed of a link 158 that engages with a bin 156 provided in the rotary disk 152, and a motor 160 that drives the rotating disk 152.

By the way, there are upright arm plates 162 at both ends of the holding plate 146.
．． 162 is provided, and a notch 164.164 is provided at its apex.
and a positioning pin 16 provided at this notch 164° 164 and the holding means 138° 138 of the reflecting mirror 122.
6.degree. 166, so that the reflecting mirror 124 can be accurately positioned.

The rotary disk 152 has a notch 168, and the reflection mirror 124 is moved upward by the optical sensor 170 and inserted into the optical path, so that the transparent original can be copied as shown in FIG. On the other side, the moving platform 9 is detected.
The light sensor 172 and the holding plate 144 are provided below the light sensor 172 and the holding plate 144, and are moved downward by a projection (not shown) that blocks the light sensor 172, and are in a position evacuated from the optical path LP.
As shown in FIG. 5, the apparatus is configured to detect that the reflective original is in a copyable state.

Further, the holding plate 144 is urged upward by coil springs 174, 174 wound around the bins 148, 148.

When the transparent original copying mode is entered, the motor 160 rotates the rotary disk 152, and the two link mechanisms insert the reflective mirror 124 into the optical path LP, position it at a predetermined position, and stop it.

Here, when the optical sensor 170 detects the notch 168 and detects that the reflective mirror 124 is positioned at a predetermined position, the light source 106 is turned on and the transparent original 104 is scanned and moved by the moving device 102. Projection lens 11
The focus is adjusted by 8, passes through slit 134, is reflected by fixed reflection mirror 120, and is further reflected by reflection mirror 1.
22, 124, and is reflected by the image forming optical system 82 of the reflected original.
The photosensitive material 36 is slit-scanned and exposed at the imaging position 46a through the same optical path.

At this time, the transparent original 104 is moved by the moving device 102.
In synchronization with the scanning conveyance speed of the photosensitive material 36, that is, if the magnification of the projection optical system is n, then 1 of the photosensitive material conveyance speed.
/n, the transparent original 104 moves over the entire image area, thereby scanning and exposing the entire image onto the photosensitive material 36.

Also in the transparent original exposure device 14, the reflective original exposure device 1
Similarly to 2, during pre-scanning, etc., the shared shutter 96 acts on the optical path, inputs manual input to the image sensor 94, and the exposure correction conditions are determined, so a detailed explanation will be omitted. .

The transparent original exposure device 14 is basically configured as described above.

As described above, the exposed photosensitive material 34 (36) is sent to the processing unit 22 by the reflective original exposure device 12 or the transparent original exposure device 14 of the exposure unit 18.

In the processing section unit 20, a developing device 81 is provided in the processing section 22.
80, a bleaching/fixing tank 182, and a washing tank 184 and 186 are successively provided, and the photosensitive material 34 (developed, bleached, fixed, and washed with water) is provided with a processing solution filled inside these tanks.
36) is sent to the drying section 24.

In the drying section 24, the photosensitive material 34 (36) after being washed with water is dried and sent onto a take-out tray 188.

In the present invention, only the lower reflecting mirror 124 is moved up and down on the movable table 93, but the upper and lower reflecting mirrors 122 and 124 may be moved up and down simultaneously.

Further, although the vertical movement device 140 is configured with a link mechanism, the present invention is not limited to this, and other drive mechanisms such as a rack and binion mechanism, a screw drive mechanism, etc. may be used.

In the present invention, the reflecting mirrors 122 and 124 are attached to the movable stage 93 of the imaging lens 92, but the present invention is not limited to this, and any configuration may be used as long as they can be simultaneously moved parallel to the optical path LP. Reflection mirror 122
and 124 at the same time in the direction of the optical path LP to change the copying magnification of a transparent original.

Although the focal length of the lens 118 may be made variable, it is preferable to change the optical path length by moving the projection lens 118 along the optical path.

In the present invention, the small-sized transparent originals that are usually used are commercially available 35 mm adhesive universal films (slides) and negative films, so the magnification of the transparent original exposure system is not particularly limited, but is 2.5 -10 times is preferable, and the structure can be such that the enlargement magnification can be freely set within this range.

As the transparent original used in the present invention, the above-mentioned 35 mm
Including glue universal film or slide and negative film, various sizes of glue versatile film, slide and negative film, etc.
Furthermore, images such as characters, illustrations, and paintings may be drawn on a transparent film, such as a small-sized OHP original.

In the examples shown in FIGS. 1 and 4, although the transparent original projection optical system 100 is configured to move the transparent original 104 and form an image on the exposure position 46a, the present invention is not limited to this. Instead, the projection lens 118 and slit 1
34 and the reflecting mirror 120 may be integrally moved to perform scanning exposure.

Further, in the present invention, not only the reflecting mirrors 120, 122, and 124 but also more reflecting mirrors may be used to form an image on the exposure position 46a.

Furthermore, in the present invention, the reflective original imaging optical system 82
The scanning exposure optical system different from the above is not limited to a projection optical system for transparent originals, and may be an original moving type or mirror moving type imaging optical system for high magnification copying of small-sized reflective originals. However, it may also be an imaging optical system for performing special copying.

The copying apparatus according to the present invention is basically constructed as described above, and its operation will be explained below.

When copying a transparent original in the copying apparatus 10 shown in FIG. 1, first, when the transparent original copying mode is set, the optical path for copying the reflective original of the imaging optical system 82 of the reflective original exposure device 12 shown in FIG. As shown in FIG. 4, the imaging lens 9
The reflective mirror 124 at the rear of 2 is the vertical moving device 140.
The projection optical system 10 is inserted into the projection optical system 10 for copying a transparent original.
0 is configured. At this time, the light source 84 is not turned on.

If an enlargement magnification is specified at the same time, the projection lens 118 of the transparent original projector 14 moves along the optical path Lp according to the magnification.
, and also the above-mentioned reflective mirrors 122, 124
The imaging lens 92 is arranged so that the optical path length corresponds to the magnification.
It is moved and fixed by a moving means (not shown).
In this way, the optical system is arranged so that the optical path Lp of the projection optical system 100 of the transparent original projector 14 reaches the exposure position 46a.

Next, the transparent original 104 is positioned and mounted on the scan table 126 of the transparent original moving device 102. When the projection light source 106 of the transparent original exposure device 14 is turned on, the light emitted from the light source 106 is reflected by the reflector 108, enters the condenser lens 110, and is condensed.

The collected light has heat rays and the like removed by a heat shielding filter 112, passes through a color filter 114 at a reference position, is unified by a diffuser 116, and has a transmission thickness g410.
Irradiate 4.

The light transmitted through the transparent original 104 passes through the slit 134 to become slit light with a predetermined width, and the imaging position is adjusted by the projection lens 118, and then enters the reflection mirror 120 located directly below. The reflected light whose direction has been changed by approximately 90° by the reflecting mirror 120 travels along the optical path Lp, is reflected by the reflecting mirrors 122 and 124, and reaches the reflected original exposure optical path, and continues along the optical path as indicated by the dotted line in FIG. As shown, the light is reflected by a shutter 96 inserted into the optical path and enters an image sensor 94 .

Here, when the copy start button (not shown) of the copying device 10 is pressed, the motor 132 of the transparent original moving device 102
rotates the feed screw 130 and moves the scan table 126 fixed thereto together with the feed nut 128, thereby starting the movement of the transparent original 104 and starting pre-scanning of the image of the transparent original. Transparent original moving device 1
When 02 moves the transmission thickness [104] to a predetermined position, pre-scanning of the original image is completed, image information of the original image is read by the image sensor 94, and exposure correction conditions are set.

Each color filter and 114Y, 114 during pre-scanning
The reference positions of M, 114C and ND filter 114D are set to be in open positions (insertion amount is 0).

When the pre-scan is completed and the exposure correction conditions described above are set, the Y, M%C color filter plates 114Y, 114M, 114C and ND filter plate 114D are inserted in the required amount according to the exposure correction conditions. Light path Lp
inserted into. Further, the transparent original 104 is transferred to the moving device 1
02 returns to the movement scanning start position.

On the other hand, while the above-described prescanning and color filter correction are being performed, a photosensitive material necessary for copying according to the original is selected. If the transparent original 104 is a slide,
It is preferable to load the necessary magazines into the photosensitive material supply unit 16 so that the photosensitive material for slide copying or the photosensitive material for negative copying is selected if it is a negative film.

As an example, when the photosensitive material 36 is selected as the photosensitive material for slide copying and the photosensitive material 36 is selected, when the conveyance motor (not shown) is driven, the conveyance rollers 68a, 68
8b, 74, and 74 feed out the photosensitive material 36 by a predetermined length, and the cutter 70 cuts the photosensitive material 36 into the required length. Thereafter, the transport motor is driven again, and the photosensitive material 36 is sent to the exposure section 46, where it waits just before the exposure position 46a.

When the shutter 96 comes to the position shown by the solid line in FIG. 1 and the optical path is directed toward the exposure section 46 to enable exposure, the transparent original moving device moves and starts main scanning of the transparent original image. At the same time, the conveying rollers 58a, 58b, 60a, 60b of the exposure section 46 start scanning and conveying in synchronization with the scanning movement speed of the transparent original 104 of the photosensitive material 36. During main scanning, the projection light carrying the original image that has been suitably color-corrected by the color filter 114 and has passed through the transparent original passes through the imaging lens 118 and passes through the reflecting mirrors 120, 122, 124.
At the exposure position 46a, the photosensitive material 36, which is scanned and conveyed synchronously, is exposed.

As this exposure progresses, the photosensitive material 36 is transferred to the conveying roller 58.
The conveyance guide 62 is inserted between a, 58b and 60a, 60b.
is sent downward through. In this case, the switching guide 6
4 does not act on the photosensitive material conveyance path, and the photosensitive material 36 sent from the exposure section 46 moves vertically downward within the conveyance guide 62. Therefore, when the exposed photosensitive material 36 is fed into the processing section 22 of the processing section unit 20, there is no slack in the intermediate portion of the photosensitive material 36 due to the speed difference between the photosensitive material supply section unit 16 and the processing section 22.

When all exposure is completed, the shutter 96 is rotated to the position shown by the dotted line in FIG. 1, and the transport motor (not shown) is rotated in the opposite direction.

Therefore, the exposed photosensitive material 36 is transferred to the conveying rollers 58a and 6.
With the reverse rotation of 0a, the rear end portion moves up the conveyance guide 62, and a portion is sent into the conveyance guide 48c.

In the present invention, the transparent original exposure device 14 may be configured to turn off the projection light source 106 when exposure is completed. This reverse conveyance is stopped when the leading end of the photosensitive material 36 is upstream of the switching guide 64. Thereafter, the conveyance motor is rotated again in the same direction as the initial conveyance direction. In this case, the switching guide 62 acts on the photosensitive material conveyance path, and the leading end of the photosensitive material 36 is branched from the conveyance guide 62 and delivered to the branch conveyance guide 66. Therefore, the leading end of the photosensitive material 36 is sent to the processing section 22 of the processing section unit 20 through the branch conveyance guide 66.

The exposed photosensitive material 36 sent into the processing section 22 is transferred to the developing tank 1.
80, bleached and fixed in a bleaching/fixing tank 182, thoroughly washed with water in a water washing tank 184, 186, and then sent to a drying section 24, and after drying, a take-out tray 188
taken out to the top.

In this way, even if the obtained copy image is a small-sized transparent original, it is copied at an arbitrary high magnification by the projection optical system 100 of the transparent original exposure device 14, Even if the color filter 114 of the projection optical system 100 is pre-scanned, exposure correction conditions are set using the image sensor 94, and C, M, Y of the color filter 114 of the projection optical system 100 is adjusted.
, D are adjusted, and then exposed to the most suitable photosensitive material according to the type of the transparent original, resulting in an image of extremely high quality and good color balance.

For this reason, users can only print such high-quality copies of images once.
You can easily get it without any mistakes.

Further, as shown in FIG. 1, a reflective material [78
Even if the copying device 10 performs copying after placing the document on the document presser 81 and pressing it with the document presser 81, the copying device 10, after pre-scanning, prints a photosensitive material corresponding to the reflective document 78, such as the photosensitive material 34, in the same manner as in the case of a transparent document.
Then, slit scanning exposure is performed and the same operation is repeated.

In the example shown in FIG. 1, 2f! Although it is configured so that two magazines 30 and 32 can be loaded to use photosensitive materials 34 and 36 of It may be configured as follows.

In the example shown in FIG. 1, although the transparent original exposure device 14 is provided on the upper surface of the copying device 10 so that the optical path is almost perpendicular to the light source 106 of the projection optical system 100, the projection lens 1
The optical path may be bent between 18 and 18.

For example, the optical path may be horizontal from the light source 106 to the entrance of the differential user 116, the optical path may be bent approximately 90 degrees within the differential user 116, and the optical path may be vertical from the exit of the differential user 116 to the mirror 86. You can also do this. In addition, the light source 1 of the transparent original exposure device 14
The transmission original projection device from 06 to the projection lens 118 may be formed into a unit and configured to be detachable from the copying apparatus main body at a position outside the area of the reflection original platen 80.

Although the copying apparatus according to the present invention is configured as described above, the present invention is not limited to this, and it goes without saying that various improvements and changes in design can be made without departing from the gist of the present invention. It is.

<Effects of the Invention> As described in detail above, according to the present invention, not only reflective originals but also transparent originals can be scanned with a dedicated device in the scanning area of the reflective original, for example, on a reflective original platen ( Furthermore, even small-sized originals, especially transparent originals, can be copied at any high magnification, and even special copies can be made.

Furthermore, according to the present invention, since the magnification of the transparent original can be set arbitrarily, not only a standard-sized transparent original but also various sizes of transparent originals can be enlarged and copied onto a predetermined photosensitive material.

Further, according to the present invention, when copying a transparent original at an arbitrary high magnification, the moving device of the imaging means of the imaging optical system of the reflective original is used in common to change the conjugate length for changing the copying magnification. Since it is possible to realize this by It can be made simple and compact, and costs can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a schematic sectional view of an embodiment of a copying apparatus according to the present invention. FIG. 2 is a perspective view showing an embodiment of the reflecting mirror attached to the imaging lens of the copying apparatus shown in FIG. 1, and a device for moving it up and down. FIGS. 3 and 4 are schematic partial cross-sectional views illustrating the transmission original copying mode and the reflective original copying mode of the copying apparatus shown in FIG. 1, respectively. Description of symbols 10... Copying device, 11... Apparatus main body, 12... Reflective original exposure device, 14... Transparent original exposure device, 16... Photosensitive material supply unit, 18... Exposure Part unit, 20... Processing part unit, 22... Processing part, 24... Drying part, 26... Reserve liquid storage part, 28... Photosensitive material supply part frame, 30.32... Magazine, 34.36... Photosensitive material, 38... Open rAM, 46... Exposure section, 46a... Exposure position, 54... Glass plate, 56... Press plate, 58a, 58b, 60a. Sob: Conveyance roller, 64: Switching guide, 78: Reflective original, 80: Original table, 81: Original holder, 82: Imaging optical system, 84: Light source, 86.88.90... Mirror 92... Imaging lens, 93... Moving table, 94... Image sensor, 96... Shutter, 100... Projection optical system, 102... Transmission Original moving device, 104... Transparent original, 106... Light source for projection, 108... Reflector, 110... Condenser lens, 112... Heat shield filter, 114... Color filter, 114Y... Y (yellow) filter, 114M...
・M (magenta) filter, 114C...C (cyan) filter, 114D...ND filter, 116...Diffusion user, 118...Projection lens, 120, 122, 124...Reflection mirror 126...・
Scan table, 128... Moving nut, 130... Feed screw, 132... Motor, 134... Slit, 136... Casing, 138, 142... Holding means, 140... Vertical movement Device, 144... Holding plate, 146 148.154°156.166... Pin, 150 158... Link, 160... Motor, 162... Arm plate, 164.168... Notch, 170.172... Optical sensor, 174... Coil spring, 180... Developing solution, 182... Bleaching/fixing tank, 184 186... Washing tank, 188... Taking out tray

Claims (2)

[Claims] (1) An exposure section unit equipped with an imaging optical system that scans and exposes the image of a reflective original onto a photosensitive material and a scanning exposure optical system different from the imaging optical system, and a photosensitive material supply that supplies the photosensitive material to an exposure position. A copying apparatus comprising a processing section unit and a processing section unit for developing an exposed photosensitive material, wherein a plurality of reflecting mirrors constituting the scanning exposure optical system are provided downstream of the imaging means of the imaging optical system. is arranged so as to reflect the image light of the scanning exposure optical system, which is incident from a position outside the scanning area of the reflective original of the imaging optical system, and to form an image at the same exposure position as the imaging optical system; Two reflecting mirrors among the plurality of reflecting mirrors are movable parallel to and simultaneously with the optical axis of the imaging optical system, and one of the two reflecting mirrors is moved along the optical path of the imaging optical system. A copying device characterized in that it is movable so as to be freely inserted and retracted. (2) The copying apparatus according to claim 1, wherein the two simultaneously movable reflecting mirrors move integrally with the image forming means.