JPH0291629A - Copying device - Google Patents

Abstract

PURPOSE:To obtain an excellent copied image in focus by providing a means for correcting the divergence of focus caused by a supporting means at the time of copying a light transmissible original supported by the supporting means in a copying machine main body. CONSTITUTION:The light transmissible original 118 such as a slide, a negative is supported and fixed on the mount 119 of the supporting means and irradiated the original by the light from a light source device for the light transmissible original. A photosensitive material 34 is exposed with the transmitted light by a lens 92 through a 1st mirror 86 and mirrors 88 and 90 on an exposing position 46a. At such a time, the position where the light transmissible original 118 is placed is made higher than the focusing surface 80a of a reflecting original by a distance (t), thereby diverging the focus by as much as (t). By constituting a mirror unit 87 so that it can move by a distance t/2 in a direction shown by an arrow A and making the length of an optical path in such a case coincide with that in the case of the reflecting original, the divergence of focus can be appropriately corrected.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a copying apparatus. More specifically, the present invention relates to a copying apparatus that can copy a transparent original in the same way as a normal reflective original.

<Prior Art> Generally, copying apparatuses copy original images of reflective originals such as printed originals. However, with the diversification of image information recording, versatile films such as slides, etc.
There is a strong need for a copying apparatus that can easily copy transparent originals such as negative film and microfilm in the same way as reflective originals.

In order to copy such transparent originals, various types of copying apparatuses have been proposed that have an original projection device consisting of a slide projector, a reflection member, an imaging member, etc. for projecting a projected image onto the original table of the main body of the copying apparatus. ing.

Furthermore, various copying apparatuses have been proposed that have a transparent original light source device for copying a transparent original by directly placing the transparent original on a reflective original platen of the main body of the copying apparatus.

A transparent original light source device usually includes a light source for irradiating a transparent original, and a glue flap or the like for reflecting irradiation light emitted from the light source onto the transparent original.

When copying various types of transparent originals using a copying machine that has such a transparent original light source device, first place the transparent original on the document table of the copying device, and then place the transparent original light source device on top of it. Then, the transparent original is irradiated with the irradiation light from the light source of the transparent original light source device and the reflected light from the reflector.

Then, the transmitted light that has passed through the transparent original enters the main body of the copying apparatus, and the transmitted light forms an image on the exposure surface of the main body of the copying apparatus to expose a photosensitive material or the like to obtain a copied image of the transparent original.

<Problems to be Solved by the Invention> Such transparent originals such as negatives and slides are made of very thin and easily curled materials such as polyethylene terephthalate (PET) and cellulose. When copying a transparent original, the transparent original is supported by support means such as various mounts and holders in order to prevent damage to the original.

However, in normal copying machines, the position where a good, well-focused image can be obtained when the original image is fixed, the so-called focus position (focus plane), is the position where the reflective original is placed, as shown in Figure 5. It is set at the upper surface of the document table 180, that is, at the position 180a.

Therefore, when a transparent original having a support means is placed on the document table 180 and the transparent original is copied, the image position of the original image is at a higher position than the image position of the reflective original due to the support means. As a result, the optical path length from the image position to the exposure position of the main body of the copying apparatus becomes incorrect, which is what is called a focus position shift.

For example, the mount 184 is used as a support means for the transparent original 182.
When copying is performed while supporting the transparent original 182 at the mount 184, the fixed position of the transparent original 182 is t due to the height of the mount 184. The distance is higher than the focus position 180a.

Therefore, in a normal copying machine that is configured to obtain a good, well-focused image when the original image is fixed at the focus position 180a, the transmission image fixed by the support means such as the mount 184 When copying the original 182, the optical path length 'h< is shifted (lengthened) by a distance of 70, and the resulting copied image is out of focus.
This results in a so-called out-of-focus image, making it impossible to obtain a good copy image.

In addition, when making multiple copies of transparent originals using a transparent original holder for placing and fixing a large number of small transparent originals such as slides in an array, this problem may arise due to the thickness of the holder. This makes it even more noticeable.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems by placing various transparent originals such as slides and negatives supported by various supporting means such as mounts and holders on the document table of the main body of a copying machine. It is possible to suitably correct out-of-focus caused by mounts, holders, etc. when making copies.
It is an object of the present invention to provide a copying device that can always obtain good, well-focused images.

Means for Solving the Problems> In order to achieve the above object, the present invention provides a copying device main body capable of copying a reflective original, a copying device mounted on the copying device main body,
A copying apparatus comprising a transparent original light source device that enables copying of a transparent original placed directly on a reflective original platen of the copying apparatus main body, the copying apparatus comprising: a transparent original light source device capable of copying a transparent original placed directly on a reflective original platen of the copying apparatus main body, the copying apparatus comprising: a transparent original light source device that enables copying of a transparent original supported by a supporting means Another object of the present invention is to provide a copying apparatus, characterized in that the copying apparatus main body includes means for correcting a focus position shift caused by the support means.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A copying apparatus according to the present invention will be described in detail below based on preferred embodiments shown in the accompanying drawings.

FIG. 1 shows a preferred embodiment of the copying apparatus of the present invention.

The copying apparatus IO shown in FIG. Transparent original light source device 14 that enables copying at 12
It consists of Here, the transparent original 118 is supported and fixed by a mount 119 serving as a supporting means.

The copying machine main body 12 of the copying machine 10 shown in FIG.
Basically, it is a slit scanning exposure type copying machine for reflective originals using a silver halide photosensitive material as a photosensitive material.The photosensitive material supply unit 16 is on the right side, the exposure unit 18 is on the upper side, and the exposure unit 18 is on the lower side. A processing section unit 20 is provided. The transparent original light source device 14 is placed at a predetermined position on the upper surface of the exposure unit 18, and a connection cable 160 (see FIG. 3) for transmitting various information is placed at a predetermined position on the copying machine main body 12 (not shown). Connected.

When copying a transparent original 118 using the copying apparatus 10 of the present invention, the transparent original 118 placed on the original platen 80 is irradiated with the transparent original light source device 14, and the transmitted light transmitted through the transparent original 118 is The light enters the exposure unit 18, and the photosensitive material 34 (36) is scanned and exposed for copying.

The copying apparatus 10 of the present invention is configured such that when copying a reflective original, the transparent original light source device 14 is removed and replaced with an original presser 15, as shown in FIG.

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. are housed in a roll, respectively, and are taken out from the tip to the photosensitive material supply unit 16. - For example, 34 is a photosensitive material that is most suitable for copying color printed originals that are reflective originals;
6 is a photosensitive material most suitable for copying transparent color slide originals or color negative film originals.

At the front of the magazine 30, conveyor rollers 42a and 42b for drawing out the photosensitive material 34, and a cutter 44 for cutting the photosensitive material 34 into a predetermined length are arranged.

Between the cutter 44 and the exposure section 46 are photosensitive material conveyance guides 48a, 48b, 48c and conveyance rollers 50.5.
2 is arranged to guide the cut photosensitive material 34 to the exposure section 46.

The exposure section 46 is an exposure position 46a (exposure surface) of the photosensitive material 34.
In this exposure section 46, a glass plate 54 is fixed facing the imaging optical system of the exposure section unit 18, and a suppression plate 56 is press-fitted to this glass plate 54.

A pair of transport rollers 58a, 58b and a transport roller 80a60b are provided on the upstream side (upper side) and downstream side (lower side) of the exposure section 46, respectively.

A conveyance guide 62 that guides the exposed photosensitive material 34 downward is arranged vertically below the exposure section 46, and a conveyance guide 66 that branches the conveyance path of the photosensitive material 34 (36) is arranged in the vertically intermediate part thereof. A switching guide 64 is provided for switching to the processing section unit 20 that has passed through the processing section.

On the other hand, the magazine 32 disposed below the magazine 30 also has transport rollers 88a and 68 corresponding to the photosensitive material 36.
b and the cutter 70, and in front of them, conveyance guides 72a, 72b and a conveyance roller 74 are arranged to convey the photosensitive material 36 to the conveyance guide 48a.

Next, the exposure section unit 18 will be explained.

The exposure unit 18 is one of the features of the present invention, and includes an original platen 8o, which is usually made of a transparent glass plate on which a reflective original is placed, and an exposure unit 46 for transferring the image on the original platen 80. An imaging optical system 82 with a light source for performing slit scanning exposure on the photosensitive material 34 (36), an image sensor 94 used for image adjustment, and an exposure section 4 that acts on the optical path.
It has a shutter 96 for switching the optical path between the 6 side and the image sensor 94 side, and a slit 93 for defining the exposure width of the photosensitive material 34 (36).

In the copying apparatus 10 of the present invention, when copying a transparent original, a transparent original light source device 14, which will be described in detail later, is disposed on the upper surface of the exposure unit 18, and its connection cable 160 (see FIG. ) is attached to a predetermined position on the main body of the copying machine.

Here, the imaging optical system 82 includes a light source unit having a light source 84 and a first mirror 86 that scan the lower surface of the document table 80, and a light source 84 that moves in the same direction at 1/2 the speed of this light source unit. Mirror 8 that reflects light from
It is composed of a mirror unit 87 composed of 8.90 mm and a lens unit 92.

The light source unit includes a light source 84 and a first mirror 86, and scans the lower part of the document table 8o at a scanning speed during exposure. The light source 84 is a normal exposure light source for reflective originals, and the first mirror 86 reflects the exposure light beam irradiated by the light source 84 and reflected on the reflective original onto a mirror unit 87 when copying a reflective original. It is a mirror for

When copying a reflective original 130 (see FIG. 5), the original image on the original table 80 is illuminated by the light source 84 in the light source unit, and the first mirror 86 . The original image reflected by the mirrors 88 and 90 of the mirror unit 87 passes through the lens unit 92 and is exposed to the photosensitive material 34 (36) in the exposure section 46 when the shutter 96 is opened.

Note that in the copying apparatus 10 of the present invention, the transparent original 11
8 is incident on the exposure section unit 18 of the main body 12 of the copying apparatus, that is, in the example shown in FIG. ), when copying a transparent original, the light source 84 is controlled not to turn on in order to prevent flare or the like from occurring in the copied image.

The mirror unit 87 is a member for reflecting the reflected light from the first mirror 86 in a predetermined direction, and mirrors 88 .
90, which moves in the same direction at half the speed of the light source unit during exposure.

In the copying apparatus 10 of the present invention, the mirror unit 87 also has a function as a correction means for correcting a focus position shift caused by the mount 119 as a support means for the transmission thickness 'g4118.

As described above, a transparent original is usually supported and fixed by a support means such as a mount or a holder, and then copied. Therefore, the image position of the transparent original is higher than the image position of a normal reflective original by the amount of the supporting means.

That is, as shown in FIG. 2, since the transparent original 118 is normally supported and fixed by a mount 119 or the like, the image position of the transparent original 118 is at a distance from the focal plane 80a when copying the reflective original. III t will be higher.

Therefore, in the case of the copying apparatus 10 of the present invention in which the photosensitive material 34 (36) is exposed to light emitted from the transparent original light source device 14 and transmitted through the transparent original 118, the mount 11
When copying the transparent original 118 supported by 9,
The optical path length becomes longer by the distance t of the deviation of the image fixing position by the mount 118, making it impossible to obtain a well-focused copied image.

Here, in the copying apparatus 10 of the present invention, the holder 1
When copying the transparent original 118 supported by support means such as 19, the mirror unit 87 suitably adjusts the optical path length deviation and corrects the focus position deviation.

In the copying apparatus 10 of the present invention, when copying an original image and a copy image at the same size, the optical path length from the focusing surface 80a to the principal point 92a of the imaging lens and from the principal point 92a to the exposure position 46a are determined. The structure is such that copying is performed in a state where the optical path lengths are equal.

However, the transmission thickness 'g41 supported by the holder 119
When copying No. 18, the exposure length from the transparent original fixing position 118a to the principal point 92a increases by the distance t as described above, causing a focus position shift and making it impossible to obtain a good copied image. .

Here, in the copying apparatus 10 of the present invention, the transparent original 1
Distance t that the image fixing position of No. 18 deviates from the focus plane 80a
In contrast, by moving the mirror unit [87 by a distance of t/2 in the direction of arrow A in the figure, the focus plane 80a
The optical path length from the transparent original fixing position 118a of the transparent original 118 to the exposure principal point 92a is made to match the optical path length from the transparent original fixing position 118a to the exposure position 46a, and the focus position shift caused by the mount 119 is suitably corrected.

Furthermore, when copying with variable magnification, the exposure length from the focus plane 80a to the principal point 92a is different from the exposure length from the principal point 92a to the exposure position 46a. Even when the mirror unit 87 is 1/2t
By moving 8 shifts in the direction of arrow A in the figure by a distance of
The exposure length from the focus plane 80a to the principal point 92a is made equal to the exposure length from the transparent document fixing position 118a to the principal point 92a to correct the focus position shift, and produce a good variable-magnification copy image that is suitably focused. Obtainable.

The movement of the mirror unit 87 for correcting the focus position shift in the copying apparatus 10 of the present invention shown in FIG.
Although it is preferable that the transmission original light source device 14 be configured to operate automatically when the connection cable 160 is connected to the copying machine main body 12, the present invention is not limited to this. The input may be made manually if necessary, or the mirror unit 87 may be automatically moved when the image sensor 94 detects that the copy target is a transparent original during pre-scanning. It may be configured as follows.

Further, the amount of displacement of the mirror unit 87 for adjusting the optical path length may be determined by calculating the average value of the amount of deviation t of the transparent document fixing position 118a by supporting means such as a mount or holder that is normally used (mirror Of course, it is also possible to determine the amount of transverse movement of the unit and create a dedicated mount, holder, etc. that matches it. Alternatively, the image sensor 94 may read the movement amount t during pre-scanning, and the mirror unit 87 may be moved accordingly.

Note that when copying multiple copies of a transparent original mounted on a slide, etc., and placing and fixing the mount part on top of each other in a holder etc., the fixing position of the original image may be misaligned. t may be set to the middle of the thickness of the entire transparent original.

The means for moving the mirror unit 87 during focus position deviation correction in the present invention may also be used as the means for moving the mirror unit during scanning exposure, or various known moving means may be provided separately.

The lens unit 92 is for suitably adjusting the light amount and color tone of the exposure light beam and forming an image on the exposure position 46a. Here, the lens unit 92 includes a plurality of lenses,
It consists of units such as an aperture and a color correction filter, and converts the original image on the original platen 80 into the photosensitive material 34 (3) of the exposure section 46.
6) The image is formed by changing the magnification to a predetermined magnification and performing exposure under optimal exposure conditions, and is equipped with an aperture and a color correction filter to enable adjustment of exposure conditions.

Although all known lens units are applicable to the copying apparatus 10 of the present invention, the lens units disclosed in Japanese Patent Application Nos. 63-97778 and 63-97779 by the present applicant are particularly applicable. It is particularly suitably applied.

Note that the imaging optical system 8 applied to this copying apparatus 10
2 is configured to enable variable-magnification copying of 0.5 to 2.0 times.

The shutter 96 is used to switch the optical path of the exposure light beam, and is used when pre-scanning or correcting white balance.
The shutter 96 is in a closed state as 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 is manually applied to the image sensor 94 to determine the exposure correction conditions.

The slit 93 is for defining the exposure width of the photosensitive material 34 (3B).

Next, the processing section unit 20 will be explained.

The processing section unit 20 includes an IA processing section 22 and a drying section 24. A developing tank 102, a bleaching/fixing tank 104, and washing tanks 106 and 108 are successively provided in the processing section 22, and the photosensitive material is developed, bleached, fixed, and washed with processing liquid filled into these tanks. 34 (36) are 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 the take-out tray 110.

In the copying apparatus 10 of the present invention, when copying the transparent original 118, the transparent original light source device 14 is placed at a predetermined position on the exposure unit 18, and the connecting cable 160 (
(see FIG. 3) is connected to a predetermined position (not shown) of the main body 12 of the copying apparatus.

Then, the transparent original 118 placed on the original platen 80 is irradiated, and the transmitted light that has passed through the transparent original 118 is incident on the first mirror 86 of the copying apparatus main body 12, and is imaged on the exposure surface 46a. The photosensitive material 34 (36) is exposed.

A suitable example of such a transparent original light source unit 14 is shown in FIGS. 3 and 4.

The transparent original light source device 14 basically includes a transparent original light source 153 as a light source that illuminates the transparent original 118, and is arranged above the transparent original light source 153, and is arranged above the transparent original light source 153.
A glue flap 154 for reflecting the light irradiated behind the transparent original 118, a heat absorbing glass 156 below the transparent original light source 153, a diffuser plate 157, and a cooling means for cooling the inside of the unit. These components are arranged as a unit in a light-shielding box 150.

Furthermore, a power cord 162 and a connection cable 160 to the copying apparatus main body 12 are arranged outside the box 150.

The transparent original light source 153 is for illuminating the transparent original 118 placed on the original platen 80, and is arranged at three locations in the example shown in FIG. is supported at both ends.

The light source 153 for transparent originals used in the present invention is not particularly limited as long as it has an amount of light that can expose photosensitive materials, etc. on the exposure surface of the copying device, and various types such as halogen lamps, xenon lamps, fluorescent lamps, etc. are applicable. It is possible.

The reflector 154 is a member for reflecting the irradiation light emitted behind the light source 153 for transparent originals, that is, toward the side opposite to the transparent original 118, to the side of the transparent original 118 to improve light collection efficiency. It is arranged above the light source 153.

The shape of the reflector 154 is not particularly limited as long as it can appropriately reflect the irradiated light from the transparent original light source 153 onto the transparent original 118. Therefore, its shape depends on the size of the applied transparent original light source device 14, the shape and number of transparent original light sources 153,
It is determined as appropriate depending on the light l, light amount distribution, etc., and the copying apparatus to which it is applied.

Further, there is no particular restriction on the material, and any material used for ordinary glue flutters, such as aluminum, and those materials subjected to surface ffi treatment with high light reflectance, can be used.

The transparent original light source device 14 has a cooling means for cooling the inside of the box 150, and in the example shown in FIG. 3, it has a cooling fan 155 as the cooling means.

In such a transparent original light source device 14, since a halogen lamp or the like is normally used as the transparent original light source 153, the inside of the box 150 becomes high temperature. Therefore, there are problems such as the light source 153 for transparent originals deteriorating, and the transparent original 118, which is usually made of heat-sensitive materials such as cellulose and PET (polyethylene terephthalate), changing in quality, deformation, discoloration, and fading. 15 It is necessary to cool the inside.

There are no particular restrictions on the cooling fan 155, and any of the various types of cooling fans normally used in the transparent original light source device 14 can be used.

In the illustrated example, the cooling fans 155 are arranged at two locations on the back side of the box body 150 as shown in FIG. 2, but the present invention is not limited to this. The location and number of are the size of the transparent original light source device and the light source for transparent originals! 53, the amount of heat emitted by the transparent document light source 153, etc., as appropriate.

Further, in the present invention, the cooling means inside the box 150 is not limited to the cooling fan 155 as described above, and any known cooling means can be applied.

In the transparent original light source device 14 shown in FIGS. 3 and 4, a heat absorbing glass 156 is disposed below the transparent original light source 153. As shown in FIG.

It is more preferable to arrange the heat-absorbing glass 156 below the light source 153 for transparent originals in that it is possible to prevent the transparent original 118 made of a heat-sensitive material from being altered or deformed due to heat, as described above.

As the applicable heat absorbing glass 156, any known heat absorbing glass such as a glass material containing a copper compound can be applied.

Furthermore, in the present invention, not only heat-absorbing glass but also various heat-absorbing filters such as a liquid-phase filter containing a dilute solution of copper salt can be applied.

A diffusion plate 157 is arranged below the heat absorbing glass 156.

The diffuser plate 157 is a member for evenly irradiating the transparent original 118 with the irradiation light from the transparent original light source 153, and any known material such as a frosted glass, a Fresnel lens, a halftone screen, or a combination thereof can be used. It is possible.

The box body 150 stores each of the above-mentioned constituent members therein, and is preferably light-shielding and can be made of various shapes and materials.

Such a box 150 may have a known positioning means such as a positioning pin for determining the placement position of the transparent original light source device 14 on the copying machine.

The transparent original light source device 14 is normally used by being placed on the exposure unit 18 of the copying apparatus main body 12, but in order to prevent damage to the original table 80, which is usually made of a material such as glass, When the transparent original light source device 14 is placed, the support member of the transparent original light source device 14 is preferably separated from the document table 80 and supports the transparent original light source device 14 .

The copying apparatus 10 of the present invention is basically configured as described above, but in the present invention, the copying apparatus main body 12 is not limited to the above-mentioned silver halide photocopying apparatus, but also includes light-sensitive and pressure-sensitive materials, Various types of copying apparatus such as copying apparatuses using various photosensitive materials such as photosensitive resin materials and electrophotographic copying apparatuses are applicable.

Further, the above-mentioned transparent original light source device 14 is not only applied to the above-mentioned copying apparatus, but also may be used as a standalone apparatus to directly print the transmitted light onto a photosensitive material.

<Function> The transmission original light source device according to the present invention is basically constructed as described above, and its flowchart is shown in FIG. 6, and its function will be explained below.

As shown in FIG. 1, a mount 1 as a support means
The transparent original 118 supported and fixed at 19 is placed on the original table 80.
(Fig. 6・■)), then the transparent original light source device 1
4 at a predetermined position on the exposure unit 18.
As shown in FIG. 6, the connection cable 160 is connected to a predetermined position on the main body 12 of the copying apparatus (Fig. 6!!■).

Then, the copying apparatus main body 12 switches to the transparent original mode (FIG. 6/IV), and the mirror unit 87 moves a predetermined distance (t/2) in the direction of arrow A as shown in FIG. Figure v) shows the optical path length from the transparent original fixing position 118a to the exposure position 46a from the focus plane 80a to the exposure position 4.
The focus position shift caused by the mount 119 is corrected by matching the optical path length up to 6a.

When the power switch of the transparent original light source device 14 is turned on (
In FIG. 6 (Vl), the A cooling fan 155 starts rotating.

Next, when the transparent original light source 153 is turned on, irradiation light is emitted from the transparent original light source 153, and the transmitted light that has passed through the transparent original 118 enters the exposure unit 18 of the copying apparatus 10.

Next, when a copy start button (not shown) of the copying apparatus 10 is pressed (FIG. 6, ■), the light source unit starts scanning and pre-scanning is started. At this time, the light source 84 of the light source unit is not turned on. In the present invention, the transparent original light source 153 may be configured to turn on when the copy start button of the copying device 10 is pressed.

When the irradiation light from the transparent original light source 153 that has passed through the transparent original 118 enters the first mirror 86 of the light source unit that moves at the scanning speed and is reflected, the reflected light moves at a speed of 1/2 of the scanning speed. The light is reflected by the mirrors 88 and 90 of the mirror unit 87 moving in the same direction as the light source unit, passes through the lens unit 92, is reflected by the shutter 96, enters the image sensor 94, and the image information is converted into an image. - is read by the image sensor 94, and exposure correction conditions are set.

After the pre-scan ends, the light source unit and mirror unit 87 return to the scan start position.

On the other hand, while the above-described prescanning and color filter and aperture correction are being performed, a photosensitive material necessary for copying according to the original is selected.

- For example, if the photosensitive material for slide copying is the photosensitive material 36 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 rotates to the position shown by the solid line in FIG. 1 to enable exposure and the light source unit starts main scanning, at the same time the transport rollers 58a, 58b and 60 of the exposure section 46
a and 60b start scanning conveyance of the photosensitive material 36 in synchronization with the scanning speed of the light source unit. Note that the light source 84 is not turned on at this time either.

During main scanning, the light source 1 for a transparent original passes through a transmission thickness fA118, enters and is reflected by a mirror 86 moving at a scanning speed.
The irradiated light 53 is reflected by the mirrors 88 and 90 of the mirror unit 87 moving in the same direction at 1/2 the speed of the mirror 86, passes through the lens unit 92 whose color and aperture are suitably adjusted, and is exposed. An image is formed at a position 46a (exposure surface), and the photosensitive material 36, which is scanned and conveyed in synchronization, is exposed.

As this exposure progresses, the photosensitive material 36 is transferred to the conveying roller 58.
Conveyance guide 62 from 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 rotates to the position shown by the dotted line in FIG. The exposed photosensitive material 36 moves up the conveyance guide 62, and a part of it is sent into the conveyance guide 48c.

Note that, in the present invention, the light source 153 for transparent original may be configured to be turned off at the time 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, each conveyance roller 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 moves the leading end of the photosensitive material 36 to the conveyance guide 62.
2 and sent out to a 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 developed [1
02, bleached and fixed in a bleaching/fixing tank 104, thoroughly washed with water in washing tanks 106 and 108, and then sent to a drying section 24. After drying, it is transferred to a takeout tray 11.
It is taken out above 0.

Although the transparent original light source device according to the present invention is configured as described above, the present invention is not limited thereto, and various improvements and changes in design can be made without departing from the gist of the present invention. Of course.

<Effects of the Invention> The copying apparatus of the present invention can be used when copying various transparent originals such as slides and negatives supported by various supporting means such as mounts and holders by placing them on a document table for reflective originals. For example, by adjusting the mirror unit of the exposure unit, the optical path length is suitably corrected, and the focus position shift caused by the support means as described above is corrected.

Therefore, according to the copying apparatus of the present invention, even when copying a transparent original supported by various types of support means, there is no shift in focus due to support means such as mounts and holders.
A well-focused copy image can be obtained.

[Brief explanation of the drawing]

The first is a schematic cross-sectional front view of an example of the copying apparatus of the present invention. FIG. 2 is a partially enlarged view of the copying apparatus shown in FIG. 1. FIG. 3 is a schematic plan view of the transparent original light source device of the copying apparatus of the present invention. FIG. 4 is a front sectional view of the transparent original light source device shown in FIG. 3. FIG. 5 is a partially enlarged schematic sectional view of a conventional silver halide photocopying apparatus for reflective originals. FIG. 6 is a flowchart showing the operation of the copying apparatus of the present invention. FIG. 7 is a partially enlarged schematic diagram of an exposure section unit of a conventional copying apparatus. Description of symbols 10... Copying device, 12... Copying device main body, 14... Transparent original light source device, 15... Presser plate, 16... Photosensitive material supply section unit, 18... Exposure section Unit, 20... Processing section unit, 22... Processing section, 24... Drying section, 26... Reserve liquid storage section, 28... Photosensitive material supply section frame, 30. 32... Magazine , 34.36... Photosensitive material, 38... Open/close lid, 40.100... Bottle, 46... Exposure section, 46a... Exposure position, 54... Glass plate, 56... Pressing plate, 58a, 58b, 60a, 60b・'' Conveyance roller, 64... Switching guide, 80... Document table, 82... Imaging optical system, 84... Light source, 86... First Mirror 87...Mirror unit, 88.90...Mirror 92...Lens unit, 93...Slit, 94...Image sensor, 96...Shutter, 98...Exposure section frame, 102 ...Developing tank, 104... Bleaching/fixing tank, 106.108... Washing tank, 110... Take-out tray, 118... Transparent original, 118a... Transparent original fixing position, 119...・Mount, 150...Box body, 153...Light source for transparent original, 154...Reflector, 155...Cooling fan, 156...Heat absorption glass, 157...Diffusion plate, 158...・Support plate F I G, 5 F Senshi Urine Hosho (method) December 26, 1988

Claims (1)

[Claims] (1) A copying device main body capable of copying reflective originals, and a transparent original light source placed on the copying device main body and enabling copying of transparent originals placed directly on the reflective original platen of the copying device main body. A copying apparatus comprising: a means for correcting a focus position shift caused by the supporting means in order to copy a transparent original supported by the supporting means, in the main body of the copying apparatus. Device.