JPS59102236A - Light table - Google Patents

Abstract

PURPOSE:To improve exactitude of an adjustment work for adjusting finely an inclination of a character, etc. by forming vertically and horizontally a lot of parallel straight lines, etc. by a photochromic substance on the surface of a base plate, and color-developing them. CONSTITUTION:A lot of parallel straight lines 3 are formed vertically and horizontally by depositing a photochromic substance on the surface of a frosted glass plate 20 of a substrate for a base plate, and also, the plate 20 is covered with a very thin and strong transparent sheet 5 made of plastic. In this state, when an ultraviolet ray lamp 1 is turned on by a switch 10, a lot of parallel straight lines 3 appear vertically and horizontally on the surface of a base plate 2, as shown in the figure, and also, when the lamp 1 is turned off and a fluorescent lamp 4 is turned on by a switch 40, the striaght lines 3 disappear and the surface of the plate 2 becomes unfigured entirely, as shown in the figure. As a result, when a character image adjusting work is executed by making the straight lines 3 appear, a fine adjustment of an inclination of a character, etc. can be executed, therefore, the work efficiency and exactitude of the work can be improved simultaneously.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a proposal for a light table comprising translucent plywood and a light source for illuminating the plywood.

As is known, a light table has a light source placed on the underside of the plywood, and the light source illuminates the plywood from below.The tabletop surface is extremely bright, making it easy to write fine notes, etc. Work such as drafting becomes easier, and
It is widely used because it allows the work paper placed on the plywood surface to be seen through, and is suitable for superimposing and aligning images on the superimposed work paper.

Among them, it is often used in photoengraving work. For example, it can be used as a workbench for opaque painting to fill in the bins that appear on transparent original film taken with a camera, and it can also be used as a workbench for opaque painting, where figures and characters on original film are individually erected. It has become indispensable as a workbench for checking whether the letters are arranged correctly, or when the letters are arranged in such a way that there is no inclination in each line, but the position of the first letter of each line is correctly aligned. There is.

Furthermore, in the work of laying out mounts, a light table is effectively used to eliminate the inclination of the characters or designs to be laid out and to achieve accurate layout.

By the way, let's shine the light from the bottom of the plywood.

Since the paper placed on the base plate can be seen through, the paper can be checked, checked, and checked for the presence or absence of two characters and the slant of the lines as mentioned above (hereinafter, these operations are collectively referred to as ``character image adjustment''). Figure work”
), but the work is currently being carried out by the following:

Zunawaji 2 Place the desired work paper (for example, a film with characters or images on it) on a plywood board. 2 It is usually called a layout board. A paper material consisting of a large number of parallel straight lines arranged vertically and horizontally at minute intervals (hereinafter referred to as a "base material for shaping") is used, and this is superimposed on a work paper.

Then, the characters and images on the work paper can be seen through this base material for body shaping, so a straight line on the base material for body shaping is arbitrarily selected and used as the baseline for body shaping, and the character 7 is drawn on this base line for body shaping. It is created by combining images etc.

For example, if you discover that a certain character has a slant,
If you want to retouch this (1), first remove the base material for reshaping, and then use the work paper (2).

I separated the text part and fine-tuned the inclination.

The procedure is to reapply it with transparent tape, place the base material for shaping on the work paper again, and check whether it is completely erect.

Even through such procedures, it is possible to ultimately achieve the work objectives. However, when making fine adjustments to the inclination, there is no physical means to confirm that the object is completely erect and correct, so this must be done by eye, and it is difficult to improve the accuracy of the adjustment process, which requires redoing two operations. This is an extremely troublesome task, as it can lead to forced consequences.

In this way, the character image adjustment work that is currently being done using a light table has poor workability, low work efficiency, and lacks precision in the trench work, so it is by no means desirable. Although it cannot be said that it is.

Using a light table for this task may be the only best way.

Based on the above points, the inventors have conducted various studies and found that
It occurred to me that if the light table itself was improved and configured to be suitable for character image adjustment work, it would be possible to solve the current problem of sluggish character image adjustment work, and so the plywood surface itself , corresponding to the above-mentioned base material for cosmetic surgery,
Although we devised a structure in which a large number of parallel straight lines are arranged in the vertical and horizontal directions with minute intervals, this is not the only structure.

It has been found that in the following cases, on the contrary, inconveniences arise.

In other words, the light table is suitable and indispensable for the above-mentioned printing and opaque painting work that fills in pinholes on transparent original film. If there are many straight lines or other marks arranged vertically and horizontally on the plywood surface, the pinholes in the film will overlap with the straight lines or marks, which will become a major hindrance to the opaque painting process. .

Therefore, the present invention was devised as a result of further studies taking this point into consideration. When it is necessary to have a standard straight line or a standard size display mark on the plywood surface, a large number of parallel straight lines or standard size display marks, etc. are displayed on the plywood surface in the vertical and horizontal directions at minute intervals, while other For example, when working with opaque paint.

The structure is designed to make it possible to eliminate this straight line from the plywood surface and make the plywood surface plain.

The present invention provides a light table that is most easy to use depending on the content of the work and simultaneously improves work efficiency and work accuracy.

2. In the present invention, on the surface of a plywood substrate such as frosted glass, a large number of parallel lines are formed vertically and horizontally at minute intervals, or standard size indication marks are formed using photochromic technology.
The base plate is formed by covering the base plate with an ultra-thin elastic transparent sheet, and is used as a light source in addition to a normal light source.

A light table having the above function can be provided by equipping it with a light source that colors straight lines formed by the photochromic material.One example is shown below. The invention will now be described in detail with reference to the accompanying drawings, in which:

The figures show how the light table of the present invention was implemented. Figure 1 is a top view of the light table when a normal light source is turned on, and Figure 2 is a top view of the light table when an ultraviolet light source is turned on.・The top view of the table, Figure 3, is A in Figure 2.
- An enlarged vertical cross-sectional view of the plywood section taken along line A, FIG. 4 is a diagram showing the light source part. Of the light sources shown in FIG. 4, by turning on the ultraviolet light source switch When the light (1) is turned on, a large number of parallel straight lines (3) appear in the vertical and horizontal directions with minute intervals on the surface of the two plywood boards (2) as shown in the second figure, and this ultraviolet light When the fluorescent lamp (4) is turned on by turning off the lamp (1) and turning on the fluorescent light source switch (40), the straight line (3) disappears as shown in the first diagram. The second plywood (2) side is completely plain, so to be more specific.

In the present invention, a large number of parallel straight lines (3) are formed in the vertical and horizontal directions on the surface of the frosted glass plate (20) that forms the substrate for plywood.

A photochromic material is deposited to form a straight line (3 ) to prevent it from breaking during work.

Photochromic substances develop color when exposed to ultraviolet light, and when the light is turned off, the color changes.

It has the property of fading when exposed to natural light, daylight fluorescent lamp light, sunlight, etc., or heat, so as mentioned above, when the ultraviolet light lamp (1) is turned on, the straight line (3)
will appear in color, then turn off the ultraviolet lamp (1) and turn on the fluorescent lamp (
When 4) is turned on, the straight line (3) disappears, and the plywood (2) can be used in a completely plain state as shown in Figure 1.

In this way, if the light source for revealing the straight line (3) is turned on.

Many straight lines (3) appear on the surface of the plywood (2), so if you perform the above-mentioned character image shaping work in this state, there will be no need for any base material for shaping the character image. ) can be used as a reference to make fine adjustments such as the inclination of the two characters, making it possible to simultaneously improve work efficiency and accuracy.

On the other hand, for opaque painting work, etc., straight lines (3) can be drawn.
When you want to remove the light, turn off the ultraviolet light (1) and turn on the fluorescent light (4).
), the straight line (3) that had appeared will disappear and the surface of the second board (2) will become completely plain as shown in the first figure.

These tasks can be performed appropriately.

Now, on one mount, the characters and photos printed (see below).

At present, the so-called layout work of pasting these (these are referred to as "layout objects") at the required placement position is done by preparing a suitably sized blank sheet of paper and using it as a mount.
84 size, etc.), for example, if the desired size is A4 size.

Use a ruler and writing utensils to write a predetermined A4 paper.
Is it a method of cutting a frame corresponding to the size of the paper, then drawing the necessary lines for 2-layout, and pasting the layout object using those lines as a reference?

The method involves purchasing a commercially available layout mount, temporarily fixing this layout mount to the plywood surface, and pasting the layout object onto this.The former method involves two complicated operations and is significantly inferior in workability. According to the latter, there are many problems, such as the financial burden of having to go to the trouble of purchasing expensive allocation sheets.

Therefore, in the present invention, as shown in FIG.
In addition, standard size display markers according to the size of each standard size,
/ (6) is formed in such a way that it can appear, and when carrying out this assignment work, by turning on the ultraviolet light lamp (1), the standard size display mark (
6) and prepared for one mount, temporarily place it on the surface of the mount (2) in line with the display mark (6) that corresponds to the desired size among the standard size display marks (6). stop it,
All you have to do is check the surrounding frame using the standard size display mark (6) that can be seen through the blank paper, and also paste the clearance target object on the straight line (3), which is simple and quick.

It is possible to perform accurate allocation work.

Similarly, if this standard size display mark (6) is displayed only on a very small portion of the two plywood (2) sides, the purpose can be achieved.
However, if this mark (6) does not appear to be a major hindrance to opaque painting work, etc., it may be formed using a substance (paint, etc.) that will always appear on the surface of the base plate (2). You may.

[Brief explanation of the drawing]

The figures are examples of the present invention. Figure 1 is a top view of the light table when a normal light source is turned on, and Figure 2 is a top view of the light table when an ultraviolet light source is turned on. A perspective view, FIG. 3 is an enlarged vertical cross-sectional view of the plywood portion taken along line A-A in FIG. 2, and FIG. 4 is a view showing the light source portion. In the drawing, (force is the light diffuser plate, (8) is the base frame of the light table, (30) is the center line in the vertical and horizontal directions,
are shown respectively. Patent applicant: 1 person other than Yamatoya Shokai Co., Ltd.

Claims (1)

[Claims] A large number of parallel straight lines are formed vertically and horizontally at minute intervals on the surface of a plywood substrate such as frosted glass. Alternatively, a standard size display mark, etc. is formed using a photochromic material, and this is covered with an ultra-thin strong transparent sheet to form plywood. Furthermore, in addition to the normal light source, the light table is equipped with a light source for coloring straight lines formed by the above-mentioned fluorochromic substance.