JPH0455849A - Instant photography type copying device - Google Patents

Abstract

PURPOSE:To allow the beautiful copying of an original picture even if instant photographic sensitive materials which vary in spectral sensitivity characteristics and sensitivity are used by providing plural pieces of light sources varying in the spectral emission characteristics as illuminating means for illuminating the original picture and independently or simultaneously lighting these light sources. CONSTITUTION:The spectral characteristics and illuminance of the illuminating light of the original picture 1 are changed by respectively independently lighting or simultaneously lighting fluorescent tubes 28, 29 by operating the switches of the fluorescent tubes 28, 29. The illuminating light of the original picture 1 meeting the instant film 14 is selected by changing the spectral characteristics and illuminance of the illuminating light of the original picture 1 according to the spectral sensitivity characteristics and sensitivity of the instant film 14 in this way. The beautiful copying of the original picture 1 is thus executed even if the instant films 14 of the varying spectral sensitivity characteristics and sensitivity are used.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an instant photocopying apparatus for copying original images such as manuscripts and photographs.

[Prior Art] As a copying device for copying original images such as manuscripts and photographs, the present applicant has proposed an instant type copying device that has a photosensitive surface and a printing surface that forms a visible image as an inverted image of the image formed on the photosensitive surface. Instant photocopying apparatuses using photosensitive materials have been proposed (Japanese Patent Application No. 1-331617, Japanese Patent Application No. 1-331618, and Japanese Patent Application No. 1-333628).

According to this device, an image of the original image is formed on the photosensitive surface of an instant photographic photosensitive material while illuminating the original image, and the image is read by a scanner-type image reader or the like and the image data is outputted by a thermal printer or the like. Compared to conventional copying machines, this has advantages such as no need for complicated circuits and an extremely simple configuration.

[Problems to be Solved by the Invention] However, this apparatus has a problem in that depending on the type of instant photographic photosensitive material, the original image cannot be neatly copied. That is, due to differences in the spectral sensitivity characteristics of instant photographic photosensitive materials, the color balance of the reproduced image becomes poor due to a strong bluish tinge in the copied image, or the exposure time is insufficient due to differences in the sensitivity of instant photographic photosensitive materials. This caused problems such as the copied images becoming unclear.

SUMMARY OF THE INVENTION An object of the present invention is to provide an instant photocopying apparatus that can neatly copy an original painting even when using instant photosensitive materials having different spectral sensitivity characteristics and sensitivities.

[Means for Solving the Problems] In order to achieve the above object, the instant photocopying apparatus according to the present invention includes a photosensitive surface and a mark that forms an inverted image of the image formed on the photosensitive surface as a visible image. an instant photographic photosensitive material having a screen; an illumination means for illuminating the original; and an optical means for forming an image of the original on the photosensitive surface of the instant photographic photosensitive material; A number of light sources are provided, and these light sources are configured to be turned on individually or simultaneously.

[Function] According to the present invention having the above configuration, the illuminance and spectral characteristics of the original illumination light can be changed by lighting the light sources of the illumination means individually or simultaneously.

Therefore, the spectral characteristics and illuminance of the original illumination light can be changed according to the spectral sensitivity characteristics and sensitivity of the instant photographic light-sensitive material, and the original illumination light suitable for the instant photographic light-sensitive material can be selected. Original paintings can be beautifully copied even using photosensitive materials.

[Embodiment] Figs. 1 to 5 show an instant photocopying apparatus to which the present invention is applied.

In this instant photocopying device, as shown in FIG.
It is now used for copying.

In the case 2, a window hole 3 is formed in the bottom plate 2a, and an opening 4 facing the window hole 3 in the bottom plate 2a is formed in the top plate 2b. A transparent plate 5 is fixed to the window hole 3 flush with the bottom surface of the bottom plate 2a, and the original picture 1 is placed under this transparent plate 5. The transparent plate 5 is made of transparent glass, transparent acrylic resin, or the like, and allows light to pass therethrough.

A cassette holder 7 is fixed to the outer peripheral portion of the case 2 via a spacer 6 around the opening 4 on the upper surface of the upper plate 2b.

The cassette holder 7 is provided with a window hole 8 facing the opening 4 of the upper plate 2b. This cassette holder 7 has a first
An upper lid 10 is attached to the left end of the figure via a shaft 9 so as to be openable and closable. The upper lid 10 is opened as shown by the two-dot chain line in FIG. 1, and is used for taking in and out the cassette 11 inside. A lock arm 13 is rotatably attached to the cassette holder 7 at the right end in FIG. 1 via a shaft 12. The lock arm 13 locks the top lid 10 in the closed state (the state shown by the solid line in FIG. 1), rotates as shown by the two-dot chain line in FIG.
It is now possible to release the locked state.

The cassette 1 stores a plurality of peelable instant films 14 which are instant photographic photosensitive materials.

The instant film 14 is divided into two at the rear end of the pull-out tongue 14a, and a printing film 14b forming a printing surface and a photosensitive film 14c forming a photosensitive surface are fixed to the ends of the two forks, facing each other. There is also a developer 14d in a bag attached to one of the two forks. This instant film 14 is folded inside the cassette 11, and the photosensitive film 1.4c at the lowest position is placed parallel to the bottom plate 2a of the case 2, and is placed in a window hole 15 made on the bottom surface of the cassette 11. It is exposed to the outside of the cassette 11. That is, the lowest photosensitive film 14c
is arranged parallel to and facing the original image 1. Further, when the instant film 14 is pulled out by passing the drawer tongue 14a between a pair of rollers 16 and 16 attached to the cassette holder 7, the bag containing the developer 14d is torn and this developer is transferred to the photographic film 14b and the photosensitive film. It is applied between the films 14C, and then developed and fixed.

On the other hand, inside the case 2, as shown in FIGS. 2 and 3, a pair of guide shafts 17 are provided on both sides in parallel with the bottom plate 2a of the case 2. Carrier 18 is the attachment. Both guide shafts 17 pass through holes and U-shaped grooves (see FIG. 3) provided at both ends of the carrier 18, and the carrier 18 is guided by the guide shafts 17 and can move parallel to the bottom plate 2a of the case 2. It becomes.

Therefore, the carrier 18 can be moved parallel to the original image 1.

A mounting bracket 2 is attached to the carrier 18 at the left end in FIG.
A part of the endless timing belt 23 is fixed by a mounting screw 22 through the belt 1.

The timing belt 23 is wound around a belt pulley 25 that is pivotally supported by a bearing 24 (shown in FIG. 2), which will be described later. The belt pulley 25 is configured to rotate in conjunction with the rotation of a drive motor 27 (shown in FIG. 2) which is fixed to the case 2 via a gear train 26.

Therefore, by rotating the drive motor 27 in forward and reverse directions,
The carrier 18 can be moved back and forth. Note that a limit switch (not shown) is provided on the movement path of the carrier 18 to restrict the movement range of the carrier 18.

Fluorescent tubes 28 and 29 as light sources of illumination means are attached to both sides of the carrier 18, and a rod lens array 20 as an optical means is attached to the center.

The fluorescent tubes 28 and 29 are adapted to illuminate the original image 1 through the transparent plate 5. One of the fluorescent tubes 28 has a slightly reddish spectral emission characteristic as shown in FIG.
The color intensity peaks around 00 nm. ), the other fluorescent tube 29 has spectral emission characteristics with excellent color balance, as shown in FIG. The fluorescent tubes 28 and 29 are turned on independently or simultaneously by operating a switch (not shown). Incidentally, on the outer periphery of each of the fluorescent tubes 28 and 29, a slit-shaped aperture (not shown) in which fluorescent material has been removed is provided in the downwardly facing portion of the rod lens array 20. It has the role of increasing the illuminance of the line area.

The rod lens array 20 is held within a long groove 19 formed in the center of the carrier 18. When the original image 1 is illuminated by operating the switches of the fluorescent tubes 28 and 29, this rod lens array 20 receives reflected light from the original image 1 and enters through the transparent plate 5 to illuminate a narrow band-shaped area of the original image 1 onto the instant film 14. It is possible to form an erect, life-size image on the photosensitive film 14c. Note that, as the zero lens array 20, there is, for example, Selfoc Lens Array (trade name).

Further, inside the case 2, bearings 24 are provided at the upper and lower parts of the left and right side parts in FIG. . To explain in detail, the shaft 3 is attached to one end of the winding vibrator 32.
3 is fixed to the winding vibrator 32, and a shaft 34 is rotatably loosely fitted to the other end of the winding vibrator 32. The shaft 34 is fixed to the belt pulley 25 via an extension rod 35. One end of the light shielding film 30 is fixed to the winding vibrator 32, 32, and the other end of the light shielding film 30 is fixed to the carrier 18 via an angle 36, and is parallel to the carrier 18 and has an opening 4. The middle portion of the light-shielding film 30 is wrapped around a pair of light-shielding film guides 37, 37 provided at a wider interval than the opposite sides of the light-shielding film 30. Light shielding film 30
The winding vibrator 32.
32 for a predetermined number of extra turns. Winding vibe 32
Inside, a coil spring 38 is connected between the shaft 33 and the shaft 34 in a state in which it is wound a certain amount to apply tension to the light-shielding film 30.

That is, the coil springs 38 bias the winding vibrators 32 on both the left and right sides in FIG. 2 in opposite rotational directions, thereby applying tension to the light shielding film 30.

As a result, the instant film 14 is protected by the light-shielding film 30, excluding the mouth and the projection part of the lens array 20.
The photosensitive film 14c is shielded from light.

Note that when the carrier 18 is in a standby state located at the left end or right end in FIG.

Next, the operation will be explained.

When copying the original picture 1, the switches (not shown) of the fluorescent tubes 28 and 29 are operated to illuminate the original picture 1 through the transparent plate 5. Next, a start switch (not shown) is operated to start the drive motor 27. Then, the gear train 26
, the belt pulley 25, and the timing belt 23, the carrier 18 moves toward the right, for example, from the leftmost timing position in FIG.
The reflected light enters the rod lens array 2o and forms an image on the photosensitive film 14c, forming a latent image. At this time, as the carrier 18 moves, the winding means 3 on the left side
1. As the light-shielding film 3o is unrolled, the light-shielding film 30 is wound up by the winding means 31 on the right side, and the light-shielding film 30 reliably prevents unnecessary light from entering the photosensitive film 14c. And career 18
When the carrier 18 reaches the right end position and a latent image is formed on the entire surface of the photosensitive film 14c of the instant film 14, the limit switch is activated and the carrier 18 is stopped.

Thereafter, when the tongue piece 14a of the instant film 14 is pulled out, the developer 14d is applied between the printing film 14b and the photosensitive film 14C, and the development is completed in about one minute, for example. As a result, a copy of the original picture 1 can be obtained.

Here, when illuminating the original image 1, the spectral characteristics of the illumination light of the original image 1 can be adjusted by turning on the fluorescent tubes 28 and 29 separately or simultaneously by operating the switches of the fluorescent tubes 28 and 29. You can change the brightness.

Therefore, it is possible to select illumination light for the original image 1 that is suitable for the instant film 14 by changing the spectral characteristics and illuminance of the illumination light for the original image 1 according to the spectral sensitivity characteristics and sensitivity of the instant film 140, and for instant film 140 with different spectral sensitivity characteristics and sensitivity. Even if the film 14 is used, the original picture 1 can be beautifully copied. That is, when using the instant film 14 having spectral sensitivity characteristics with a strong bluish tint, the fluorescent tube 28 having spectral luminescence characteristics with a strong red tint is turned on, and the instant film 14 having spectral sensitivity characteristics with excellent color balance is used. If the fluorescent tube 29, which has spectral luminescence characteristics with excellent color balance, is turned on, the instant film 14
The spectral characteristics of the illumination light of the original image 1 are adapted to the spectral sensitivity characteristics of the original image 1, so that a copied image with excellent color balance can be obtained. In addition, when using the instant film 14 with low sensitivity, the fluorescent tube 2
8.29, and if a highly sensitive instant film 14 is used, one of the fluorescent tubes 28.29 is turned on, so that the illuminance of the illumination light for the original image 1 matches the sensitivity of the instant film 14. Clear copies can be obtained.

One of the fluorescent tubes 28 and 29 may be used for black-and-white film, and the other for color film. In this case, the fluorescent tube for black-and-white film will emit spectral light with low brightness or a strong greenish tinge. Those with special characteristics can also be applied.

Further, in the above embodiment, two fluorescent tubes 28, 29 are used, but three or more fluorescent tubes 28, 29 may be provided. Further, in place of the fluorescent tubes 28 and 29, other light sources such as rain-shaped halogen lamps having different spectral emission characteristics may be used.

Further, in the above embodiment, the transparent plate 5 is fixed to the window hole 3 of the bottom plate 2a of the case 2, but the window hole 3 may be left open.

Furthermore, although the case in which a peelable instant film 14 was used was described in Example 1-2, it is of course applicable to a so-called mono-sheet type instant photographic photosensitive material.

[Effects of the Invention] As explained above, in the instant photocopying apparatus according to the present invention, the illumination means for illuminating the original image is provided with a plurality of light sources having different spectral emission characteristics, and these light sources are turned on singly or simultaneously. Therefore, the present invention has an excellent effect in that an original image can be neatly reproduced even if instant photographic photosensitive materials having different spectral sensitivity characteristics and sensitivities are used.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the present invention, in which FIG. 1 is a partially sectional front view, FIG. 2 is a partially cutaway plan view of the main device body, and FIG. FIG. 1 is a sectional view taken along the line A, and FIGS. 4 and 5 are graphs of the spectral emission characteristics of the fluorescent tube. 1 ・Original picture, 14 ・Instant film (instant photographic photosensitive material), 20. ・Rod lens array (optical means), 28.2
9. - Fluorescent tube (light source). that's all

Claims (1)

[Scope of Claims] An instant photographic photosensitive material having a photosensitive surface and a printing surface that forms an inverted image of the image formed on the photosensitive surface as a visible image, an illumination means for illuminating the original image, and the instant photosensitive material described above. optical means for forming an image of the original image on the photosensitive surface of the material;
An instant photographic copying apparatus, characterized in that the illumination means is provided with a plurality of light sources having different spectral emission characteristics, and these light sources are turned on individually or simultaneously.