JPS5846006B2 - Additional imprinting method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a photographic system that uses a photosensitive material, such as an electrophotographic photosensitive material, in which additional images can be sequentially made by repeating exposure, development, and fixing after development and fixing, or The present invention relates to a novel additional 5-inclusive method in a photographing system that includes, as a part of the process, a photosensitive material that can be exposed again to fixation and sequentially additional images can be taken.

FIG. 1 is a diagram showing the basic concept including addition 5.

1 is the first original drawing with the letters "A + 1" written on the top half, and the bottom half is blank.

1' is the second original drawing, the top half is blank, and the bottom half has text.
B 91 is written on it.

These original images are illuminated at the position of the first original image 1 by a suitable light source (not shown).

2 is a shutter, 3 is a projection lens, and 4 is a photosensitive film. When the shutter 2 is opened, an original image is projected onto the photosensitive film 4 by the projection lens 3.

The photosensitive film 4 is, for example, a film coated with an electrophotographic material, and an image is imprinted thereon through the usual processes of corona charging, exposure, toner development, and fixing.

By projecting and exposing the first original image 1 in this manner, the letter A'' is recorded on the photosensitive film 4.

In this state, only one half of the film 4 is recorded, and the other half is not recorded.

Therefore, if the second original image 1' with the letter "B" written only on the lower half is placed in the position of the first original image 1, and the same photosensitive film 4 is exposed, developed, and fixed, the blank area of the film 4 is You can add the letter "B'' to the 5-inclusive character.

Here, if the first original image 1 is one sentence, and the second original image 1' is a sentence written at the same position as the line spacing of the first original image 1, then the line spacing of the film on which the first original image is printed is You can add a second original picture to the page.

This is effective when it is desired to add annotations between the lines of a sentence recorded on a film that has been shot or recorded, or when it is desired to make additional notes.

In addition, a stick line is drawn in the part of the second original drawing that corresponds to a specific character or sentence in the first original drawing, and a character or sentence is written in the part corresponding to the space between the lines above or below that character or sentence. By doing so, it is possible to correct the above-mentioned specific characters or sentences on the film on which the first original image was recorded.

In principle, it is possible to repeat this process of addition 5 many times, so additional recording or correction can be performed any number of times.

When performing such addition 5 in a large blank space as shown in FIG. 1, there will not be much problem.

However, for example, when the entry fields are determined in a certain format, such as in an address book, and you want to add data in a relatively narrow blank space, if the mechanical precision of the photographing device is low,
It becomes difficult to imprint in a predetermined space.

For example, a problem may occur where the printed characters overlap a horizontal line.

Particularly in the case of microphotography, mechanical precision, that is, the precision with which the photosensitive film 4 is fixed in a predetermined position during addition 5, becomes a problem.

Now, if the width of the entry field is 10 mm and you take a photo at a reduction ratio of 1/2, the width will be 0.4 mm, and if you want to accurately print within this 0.4 mm width, the width will be at least 0.4 mm. 04
Accuracy of mm is required.

However, considering the dimensional error of the film itself, it is practically extremely difficult to fix the film in a predetermined position.

As a method to avoid such difficulties, as shown in FIG. 1, a photosensitive film 4 on which the first original image 1 has been recorded and fixed is fixed in the same state as when photographing, and the illumination system 5 is used to illuminate the film 4 from the back side. A possible method is to project the imaged pattern onto the original screen, position the second original image 1' relative to the projected pattern, and then image the second original image 1'.

In this case, if the second original image 1' has already been written, additional writing can be performed at the correct position using the method described above.

However, since the projected image of the film 4 on the projection surface is a left-right reversed image when viewed as a transmitted image, a blank sheet of paper is placed in place of the second original image 1', and predetermined information is written on the sheet of paper while looking at the projection pattern. It was very difficult to fill in.

This required a step of turning the film 4 over before projecting.

An object of the present invention is to eliminate the above-mentioned drawbacks, and it is possible to project a normal image without turning the film over when projecting the film on which the first original image has been imprinted, and the mechanical precision of the photographing system is low. To provide an additional 5-inclusive method that can extremely accurately position a second original image when adding 5-in-1 images even when adding 5-in-1 images.

Hereinafter, the present invention will be explained in detail based on the drawings.

FIG. 2 is a diagram showing an additional 5-inclusive method according to the present invention,
1 is a first original image, 1' is a second original image, 2 is a shutter, 3 is a photographic/projection lens, 4 is a photosensitive film, and 5 is a projection illumination system. It is arranged on the opposite side of the lens 3.

Further, between the original image 1 and the photosensitive film 4, a normal triangular prism 6 and a roof-type prism 7 are switchably arranged, and the optical path is bent at right angles by the prisms.

Reference numeral 8 denotes a document mounting table made of a transparent glass plate or the like, on which the original image is placed.

When the photosensitive film 4 can be repeatedly recorded, in order to perform additional recording using such an optical system, place the first original image 1 with the original surface facing the original platen 8, and use an appropriate illumination system (not shown). ) to illuminate the first original image 1.

Next, the triangular prism 6 is inserted into the optical path, and the shutter 2
is opened and a first original image 1 is photographed on a photosensitive film 4 using a lens 3.

After this photosensitive film 4 is developed and fixed, it is placed again at the original photosensitive film position.

Next, a roof-shaped prism I is inserted into the optical path in place of the triangular prism 6, the shutter 2 is opened, the illumination system 5 illuminates the photosensitive film 4 from the back, and the lens 3 is used in the opposite direction to that used for photographing. The pattern of the first original image 1 recorded on the photosensitive film 4 is projected onto the original table 8.

If a semi-transparent paper is placed in place of the first original image 1, the first original image pattern can be seen as a projected image.When photographing, a normal triangular prism 6 (the number of reflective surfaces is 1) is used, and when projecting, a roof-shaped prism 7 is used. (The number of reflective surfaces is 2), so a normal left and right pattern is projected.

Now, while looking at the projected image, write desired characters, symbols, patterns, etc. at predetermined positions on the translucent paper.

The semitransparent paper with this entry becomes the second original image 1'.

Next, switch the prism, insert the triangular prism 6 into the optical path, turn over the semitransparent paper with the markings, and project the photosensitive film so that the previously marked part is at the specified position of the projected image. Align the translucent paper so that the

If a photograph is taken in this state, the desired photograph can be taken at the correct position.

If you use translucent paper or the like on which a desired pattern has been recorded in advance as the second original image 1', the recording surface should face the original platen 8, and the triangular prism 6 should be inserted into the specified position. Align and take the picture.

Furthermore, among photosensitive films that can be repeatedly recorded, there are also photosensitive films that have low photosensitivity or poor gradation, making it difficult to photograph directly from the original image.

Next, a method for finally performing additional recording on a photosensitive film with low photosensitivity and capable of repeated recording will be described.

In this case, the first original image 1 and the second original image 1' are intermediately recorded on a highly sensitive photosensitive film as an intermediate film, and finally recorded on a photosensitive film that can be repeatedly recorded by contact printing or the like.

First, a first original image 1 is photographed through a triangular prism 6 onto a first photosensitive film which is an intermediate film, and after developing and fixing this first photosensitive film, it is placed again at the original film position.

Next, the roof-type prism 7 is switched to illuminate the back side with the illumination system 5, and the pattern of the first original image 1 is projected onto the document table 8.

At this point, place the translucent paper on the document table 8, write the desired pattern in the predetermined position while looking at the projected image, and create the second original image 1.
'.

This second original image 1' is placed upside down on the document table 8, and the triangular prism 6 is inserted into the optical path to position the second original image, thereby forming a second intermediate film similar to the first photosensitive film.
The photosensitive film 1 is replaced with the first photosensitive film, and a second original image 1' is photographed, developed, and fixed.

Next, the first and second photosensitive films recorded in this manner are brought into close contact with a photosensitive film capable of repeated recording, and are printed using a light source or the like having energy commensurate with the low sensitivity.

Note that the first photosensitive film is contact-printed onto a photosensitive film that can be repeatedly recorded, the film is placed at the position of the first photosensitive film, the image is projected, and the second original image 1' is positioned with respect to this projected image. After that, images are taken on a second photosensitive film that serves as an intermediate film, and this second photosensitive film is then contact-printed again onto a photosensitive film that can be used for repeated recording, so that additional images can be added at the end. .

When printing on the final photosensitive film, the first and second photosensitive films are positioned relative to each other, and the positional relationship between the second original image and the first original image is in the correct state according to the projection pattern, so the final image is By mechanically determining the positional relationship between the photosensitive film and the intermediate film, it is possible to perform addition at a desired position.

In this embodiment, a triangular prism and a roof prism are used as the reflecting mirror optical system, but it is not always necessary to use a prism, and a reflecting mirror can also be used.

That is, a reflective optical system in which a reflective mirror is placed at the position of the reflective surface of each prism may be used instead.

More generally, the objective can also be achieved by using a reflective optical system that has an odd number of reflections when photographing, and a reflective optical system that has an even number of reflections during projection.

On the contrary, it may be reflected an even number of times during imaging and an odd number of times during projection, or a roof-type prism may be used during imaging and a triangular prism may be used during projection.

For switching between the two reflective optical systems, known switching means can be used, such as a method in which both prisms are fixed to the same pedestal and the pedestal is slid, or a method in which switching is performed by rotation.

In addition, when performing the addition 5, semi-transparent paper was used as the second original image, but as long as it is semi-transparent, plastic, glass, or any other material may be used.

Next, FIG. 3 shows another embodiment in place of the translucent paper used as the second original image 1'.

In this embodiment, translucent pressure-sensitive paper is used. Normally, when writing on pressure-sensitive paper with a hard writing instrument such as a ballpoint pen, characters written on the upper piece of paper are copied onto the lower piece of paper.

However, in the present invention, in FIG.
When projecting toward the image, the pressure-sensitive paper is placed upside down on the original table 8, unlike the normal usage.

That is, the writing paper 9 made of pressure-sensitive paper is placed so as to face the original table 8.

Since the pressure-sensitive paper is translucent, the projected image can be seen through the pressure-sensitive paper.

Therefore, if a desired item is written in a predetermined position with a writing instrument from the back side of the pressure-sensitive copy paper 10 in the projection state, the copy paper 10
The left/right (or top/bottom) reversed characters or patterns are written on the copy side.

Now, keep the prism 7 in the S position, remove the other piece of pressure-sensitive paper 9, place the copy paper 10 with the copy side facing the document platen 8, and place the written characters or pattern on it. After positioning with respect to the projected image, an additional image can be added to a desired position on the photosensitive film 4 by photographing.

The piece of paper 9 does not necessarily have to be translucent, but may be transparent; in this case, it is not necessary to remove the piece of paper 9, and therefore there is no need to position it with respect to the projected image.

In the above example, a set of two sheets of pressure-sensitive paper was used, but the paper sheet 9 is not necessary if a sheet of copying paper whose copy surface is coated with a coloring agent and a coloring agent is used.

In this case, it is possible to use one in which at least one of a coloring agent and a coloring agent is applied inside microcapsules, and the microcapsules are covered by pen pressure to develop color.

Further, instead of such pressure-sensitive paper, translucent thermal paper or ground glass can also be used.

That is, when using ground glass, the matte surface 13 of the ground glass 12 is placed on the document table 8 as shown in FIG. Photographing is carried out while keeping the prism 7 in its original state during projection.

Although it is possible to use ground glass in principle as described above, it is more practical to use the matte surface of a plastic sheet instead of ground glass.

Further, as the photosensitive film, it is also possible to use a photosensitive film having a layer of a photosensitive material that allows recording only when energy is applied above a threshold value.

As described above, according to the present invention, when projecting the photosensitive film on which the first original image is recorded, a normal image can be projected without turning the film over, and even at the point where the photographing system and the projection system differ the most, the reflective surface can be Since the original surface, the photosensitive film surface, and the lens position are always the same, even if the mechanical accuracy is relatively low, it is possible to easily perform extremely accurate addition.

Even if the photosensitive film that can be repeatedly recorded has low sensitivity or poor gradation, the final film can be produced in a simple manner by shooting on intermediate film and then finally on the photosensitive film that can be repeatedly recorded. can.

Also, if the special material of the present invention is used as the second original image,
Addition 5 can be performed in a simpler process.

[Brief explanation of the drawing]

Figure 1 is a diagram showing the basic concept including addition 5.
The figure shows an additional 5-inclusive device used in the method of the present invention, and FIG.
FIG. 4 is a diagram showing another example of the original image, and FIG. 4 is a diagram showing still another example of the second original image. 1...1st original picture, 1'...2nd original picture,
2...Shutter 3...Lens, 4
. . . First photosensitive film, 5 . . . Projection illumination system, 6 . . . Triangular prism, 7 . . .
・Roof prism, 8... Original table, 9...
... Pressure-sensitive writing paper, 10 ... Pressure-sensitive copy paper, 12 ... Ground glass.

Claims (1)

[Scope of Claims] 1. In a method of performing additional recording on a photosensitive film that can be repeatedly recorded, a first original image at the position of the document table is photographed via a first reflective optical system, and after development and fixing, the first original image is Hold the photosensitive film recorded with the photo at the time of shooting, and
The reflective optical system is such that a second reflective optical system having an odd number of reflective surfaces is disposed at the position of the first reflective optical system and projects illumination light from the back surface of the photosensitive film onto the document table position; creating a second original image by writing a desired pattern at a desired position on the projected image of the writable translucent plate at the position of the document table, replacing the second reflective optical system with the first reflective optical system; An additional 5-inclusive method, characterized in that the second original image is turned over and then positioned, and the second original image is photographed again on the photosensitive film. 2. In a method of performing additional recording on a photosensitive film that can be repeatedly recorded, the first original image at the position of the document table is photographed through the first reflective optical system, and after development and fixing, the photosensitive film on which the first original image has been recorded is Hold it in the position at the time of shooting, and then
The reflective optical system is such that a second reflective optical system having an odd number of reflective surfaces is disposed at the position of the first reflective optical system and projects illumination light from the back surface of the photosensitive film onto the document table position; A second original image is created by writing a desired pattern at a desired position of the projected image on the writable semi-transparent plate at the position of the document table, and the second original image is transferred onto the photosensitive film via the second reflective optical system. An additional 5-inclusive method characterized by photographing again. 3. The method according to claim 2, wherein the translucent plate is made of translucent paper, translucent pressure-sensitive paper, translucent thermal paper, or ground glass.