JP2005169704A - Tracing stand - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tracing stand which can obtain a high brightness and a uniform irradiation, is excellent in lightweight and portability, and is capable to obtaining a uniform brightness on a transparent part or a translucent part of an original paper mount plate. <P>SOLUTION: A trace stand is equipped with a first base 11 which is arranged so as to be brought into contact with one face of an EL light emitting member 14 and has the transparent part or the translucent part, a second base 12 which is arranged so as to be brought into contact with the other face of the EL light emitting member 14, and an electrode 15 for supplying an electric power source to the EL light emitting member 14. In this case, at least one surface part of the EL light emitting member 14 or the transparent part or the translucent part is made to be a light scattering structure. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a trace table, and more particularly to a trace table useful for overwriting a trace sheet (thin paper) superimposed on a base paper.

  Conventionally, in the so-called trace work, the trace pattern, figure, etc. written on the base paper placed on the desk is copied onto the trace paper superimposed on the base paper. Making the trace target visible is essential for work efficiency. A trace table is used to perform such work. Normally, a fluorescent lamp is placed inside the trace stand, and a semi-transparent plate such as semi-transparent glass is placed on top of it, and the base paper and trace paper are placed on the semi-transparent plate and placed behind the base paper. It is comprised so that a fluorescent lamp light may be irradiated.

  Conventionally, a fluorescent lamp has been used as a light source for irradiating light from behind a base paper in such a trace table. Fluorescent lamps are widely used because they consume less power than incandescent light bulbs and the wavelength (color) of irradiated light is relatively easy to select.

  As described above, in the conventional trace table, the fluorescent lamp is disposed inside. On the other hand, the fluorescent lamp has a thickness (the length in the radial direction of the fluorescent lamp), and the trace table is inevitably thick, and the fluorescent lamp is also separated from the translucent plate on which the base paper is placed. Therefore, some enlargement is inevitable, and there are problems of carrying and portability.

  In addition, since the fluorescent lamp has an elongated cylindrical shape, a plurality of fluorescent lamps must be arranged in parallel to uniformly irradiate the translucent plate from the lower surface. Therefore, it is inevitably heavy in weight and causes a problem of portability. Even if the irradiation intensity (brightness) of the fluorescent lamp light is satisfied to some extent, the irradiation patterns from the individual fluorescent lamps arranged side by side vary in the surface direction of the semi-transparent plate, and the semi-transparent plate surface is uniform. Can not be irradiated, resulting in uneven irradiation, which is a cause of obstacles in performing fine tracing work.

  The present invention has been made in view of the above-mentioned problems of the prior art, and the main objects of the present invention are high brightness, uniform irradiation, light weight, excellent portability, and the transparent portion of the base paper placing plate. Another object of the present invention is to provide a trace table capable of obtaining uniform brightness on a translucent part.

  In order to solve the above-described problems, the trace table according to the present invention employs the following characteristic configuration.

  (1) a first substrate having a transparent portion or a semi-transparent portion disposed in contact with one surface of the EL light emitting member, a second substrate disposed in contact with the other surface of the EL light emitting member, A trace stage including an electrode unit for supplying power to the EL light emitting member.

  (2) a first substrate having a transparent portion or a semi-transparent portion disposed in contact with one surface of the EL light emitting member, a second substrate disposed in contact with the other surface of the EL light emitting member, And a trace base having a light scattering structure on at least one surface of the EL light emitting member.

  (3) a first substrate having a transparent portion or a semi-transparent portion disposed in contact with one surface of the EL light emitting member, a second substrate disposed in contact with the other surface of the EL light emitting member, And a trace base having a light scattering structure on at least one surface of the transparent part or the translucent part.

  (4) The first and second substrates are made of a plastic material, and the first substrate is provided with an opening except for a peripheral portion, and the opening is provided with a translucent plate material (1) Or any of the trace stands of (3).

  (5) The trace table according to any one of (1) to (4), wherein one side of the first and second substrates is fixed and locked, and the other is openable.

  (6) The trace table according to any one of (1) to (5), wherein the first and second substrates and the EL light emitting member are in close contact with each other.

  The trace table of the present invention has the following practical effects. In other words, it is possible to illuminate the trace paper evenly with high brightness, and it is not only excellent in portability because it is thin and lightweight, but also a base paper mounting plate made of a translucent material on which the trace paper is placed. Since at least one side has a light scattering structure, there is no “bleeding” due to the close contact state of the close contact surface between the base paper placing plate 13 and the EL light emitting member 14, and a tracing operation without a sense of incongruity becomes possible.

  Hereinafter, the configuration and operation of a preferred embodiment of a trace table according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a simplified perspective view of a trace table according to the present invention. In FIG. 1, the trace base of the present embodiment has two substrates, preferably an upper substrate 11 and a lower substrate 12 made of a relatively hard plate material, for example, a plastic material. Is provided with an opening, and a base paper placing plate 13 made of a transparent plate material or a translucent plate material on which the base paper is placed is provided in this opening portion.

  Conventionally, a semi-transparent plate was used to avoid problems such as “glare” caused by direct light from the light source entering the eyes of the tracer and reduced work efficiency caused by non-uniform light being applied to the base paper. However, in the present invention, since the EL light emitting member can be directly covered with the semitransparent film material, a transparent plate material can be used.

  In FIG. 1, for ease of understanding, one side of the two substrates 11 and 12 is shown open, but usually both the substrates 11 and 12 are superposed. An EL light emitting member 14 is disposed between the upper substrate 11 and the lower substrate 12. An electrode 15 for receiving power from the outside is formed at the end of the EL light emitting member 14. The upper substrate 11 and the lower substrate 12 are fixed and locked on one side, and the other side can be opened to facilitate installation and removal of the EL light-emitting member 14.

  The EL light emitting member 14 can be configured using a known EL light emitting element. Since the EL light emitting element has a high luminance characteristic and has a characteristic of emitting light on the entire surface, the irradiation to the translucent plate material of the base paper placing plate 13 is uniform and the luminance is also higher than when a conventional fluorescent lamp is used. High brightness. In addition, it is easy to reduce the thickness and is preferable in terms of portability.

  FIG. 2 is a perspective view showing a usage state of the trace table according to the above embodiment, in which two substrates 11 and 12 are in close contact with an EL light emitting member 14 interposed therebetween.

  An EL (electroluminescent) element is a thin planar light-emitting element, and can be expected to be driven by a low voltage of direct current and emit light with high luminance. As shown in FIG. 3, the basic structure is a structure in which a light emitting layer 140 of an organic compound is sandwiched between two electrodes (an anode 141 and a cathode 142). For example, an indium-tin oxide (ITO) is formed on a substrate. ) Transparent electrode (anode) 141, hole transfer layer 143 formed by co-evaporation of hole transfer organic compound and electron accepting compound as dopant, EL light emitting layer 140, electron transfer layer 144, back electrode (cathode) ) 142 is a typical structure. The EL element emits light when holes injected from the ITO transparent electrode and electrons injected from the back electrode are recombined in the EL light emitting layer to excite the fluorescent dye as the emission center.

  In the trace table having the above structure, the EL light emitting member 14 can emit light uniformly with high brightness, and is thin and lightweight. Therefore, the trace table using the EL light emitting member 14 is excellent in portability. ing.

  Further, in this embodiment, in order to protect the EL light emitting member 14, a structure (shape, material, etc.) is formed such that light is scattered on at least one surface of the film portions formed on both surfaces. Further, at least one side of the base paper placing plate 13 made of a translucent material provided on the upper substrate 11 disposed on the EL light emitting member 14 (the surface on the contact portion with the EL light emitting member 14 or the surface on which the trace paper is placed) The surface (side) can also have a structure (shape, material, etc.) that scatters light.

  Since it has such a light scattering structure, the following effects can also be obtained. That is, when the base paper placing plate 13 and the EL light emitting member 14 are in close contact with each other, depending on the close contact state of the close contact surface, “bleeding” occurs due to the presence of a small gap between the two in a distant position. However, there is a problem that the trace paper cannot be clearly seen. On the other hand, in the present embodiment, since at least one surface side of the base paper placing plate 13 has a light scattering structure, the “bleeding” does not occur, and a tracing operation without a sense of incongruity becomes possible.

  The configuration and operation of the preferred embodiment of the trace table according to the present invention have been described in detail above. However, it should be noted that such examples are merely illustrative of the invention and do not limit the invention in any way. Those skilled in the art will readily understand that various modifications and changes can be made according to a specific application without departing from the gist of the present invention.

FIG. 6 is a simplified perspective view showing an embodiment of a trace table according to the present invention. It is a perspective view which shows the use condition of the trace stand by the Example shown in FIG. It is sectional drawing which shows the structure of EL element.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Trace stand 11 Upper substrate 12 Lower substrate 13 Base paper mounting board 14 EL light emission member 15 Electrode 140 EL light emission layer 141 Anode 142 Cathode 143 Hole transfer layer 144 Electron transfer layer

Claims (6)

  A first substrate having a transparent portion or a semi-transparent portion disposed in contact with one surface of the EL light emitting member; a second substrate disposed in contact with the other surface of the EL light emitting member; and the EL light emitting member A trace base, comprising an electrode portion for supplying power to the head.   A first substrate having a transparent portion or a semi-transparent portion disposed in contact with one surface of the EL light emitting member; a second substrate disposed in contact with the other surface of the EL light emitting member; and the EL light emitting member And a electrode plate for supplying power to the at least one surface of the EL light emitting member having a light scattering structure.   A first substrate having a transparent portion or a semi-transparent portion disposed in contact with one surface of the EL light emitting member; a second substrate disposed in contact with the other surface of the EL light emitting member; and the EL light emitting member And a electrode plate for supplying power to the tracing table, wherein at least one surface of the transparent or translucent portion has a light scattering structure.   The said 1st and 2nd board | substrate consists of a plastic material, The said 1st board | substrate is provided with the opening part except the peripheral part, The semi-transparent board | plate material is provided in this opening part, It is characterized by the above-mentioned. The trace stand according to any one of 1 to 3.   5. The trace table according to claim 1, wherein one side of each of the first and second substrates is fixed and locked, and the other side is openable.   6. The trace table according to claim 1, wherein the first and second substrates and the EL light emitting member are in close contact with each other.

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