JPH09123683A - Lighting fitting for tracing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fitting for tracing, which is relatively thin in thickness, emits lights from places on the surface of an underlay board at nearly the same light intensity, and is relatively inexpensive. SOLUTION: A lighting fitting is provided with a translucent underlay board 9 having a surface to place an article 5 to be traced and a tracing medium 6 on it, a light source 10 that is arranged near a right side edge 12 of the underlay board 9, and a light guiding paths 11 that are located rather close to the rear side than the surface side to guide the light emitted from the light source 10 in parallel with the surface of the underlay board 9 and let the light radiate from two or more places on the surface of the underlay board 9 at nearly the same light intensity.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transcription lighting device for illuminating characters, figures, etc. described in an original drawing to be laid so that they can be clearly seen when performing transcription.

[0002]

2. Description of the Related Art Transcription means tracing, which is a method used for drawing the same drawing as an original drawing on a separate sheet of paper with a thick black ink, pencil, pen or the like. Specifically, the original drawing is placed on the upper surface of the desk, a copy paper is placed on the original copy, and the drawing drawn on the original copy seen through the copy paper is traced with a thick black ink or the like. In this way, the same drawing as the original drawing can be drawn on a separate sheet with thick black ink or the like.

However, the lines drawn in the original drawing may be light in color, or the transparency of the copying paper may be low, making it difficult to see the drawing drawn from the original drawing. In such a case, there is a problem that it is difficult to make a copy.

As a layout lighting device 1 for solving the above problem, one shown in FIGS. 6 and 7 can be considered. FIG.
FIG. 7 is a cross-sectional view of this transcription lighting device 1, and FIG. 7 is a plan view. Reference numerals 2 and 2 shown in FIG. 6 denote two fluorescent lamps, and the two fluorescent lamps 2 are housed in a housing 3. A base plate 4 formed of a semitransparent plastic plate is provided in the upper opening of the housing 3. When the transcription lighting device 1 is used for transcription, as shown in FIG. 6, for example, paper or film on which characters, figures, etc. (not shown) to be transcribed are described. The original drawing, that is, the subject 5 is placed on the floor plate 4. Then, a copy paper or a copy film 6 is placed on the subject 5 and the two fluorescent lamps 2 are turned on. The lights of the two fluorescent lamps 2 pass through the floor plate 4, the subject 5, and the image body 6 and enter the eyes of the worker upward, so when the image body 6 is viewed from above the image body 6, Even if the light transmittance of the image object 6 is low, it appears to be transparent. In other words, since the characters, figures, etc. written on the subject 5 can be clearly seen through the object 6, the characters, figures, etc. can be traced from above to easily copy them onto the object 6. be able to.

[0005]

However, since the fluorescent lamp 2 is arranged below the floor plate 4 in the above-mentioned lighting device 1 for transfer, the thickness W _{1 of the} lighting device 1 for transfer is not equal to that of the fluorescent lamp. Two
However, there is a problem that the thickness becomes thicker and bulky. Then, it is conceivable to provide the fluorescent lamp 2 close to the floor plate 4 in order to reduce the thickness W ₁ of the lighting device 1 for layout, but then, the luminous intensity of the light 7 emitted from the surface of the floor plate 4 becomes It becomes large at a position close to the fluorescent lamp 2 and becomes small at a position distant from the fluorescent lamp 2. As a result, of the characters and figures written on the subject 5 visible through the image body 6, the portions near the fluorescent lamp 2 are too bright to see through the characters and figures, making it difficult to see. In the portion far from the point of view, since the light intensity is too low, the transparent degree of the image body 6 becomes low, and there arises a problem that characters and figures are difficult to see.

As described above, in order to reduce the unevenness of the luminous intensity of the light 7 emitted from the surface of the floor plate 4, it is sufficient to increase the number of the fluorescent lamps 2, but there is a problem that the illuminating device 1 becomes expensive. . When the number of fluorescent lamps 2, that is, the number of lighting fixtures is increased, the luminous intensity of the surface of the floor plate 4 becomes too high,
If the floor plate 4 having a low light transmittance is used in order to reduce the luminous intensity, there is a problem that the utilization efficiency of electric power is lowered.

The present invention provides a relatively inexpensive transcription illumination device in which the thickness of the transcription illumination device is relatively thin and the light intensity emitted from each portion of the surface of the floor plate is substantially the same. The purpose is to do.

[0008]

SUMMARY OF THE INVENTION A first invention is a transparent or semi-transparent floor plate having a surface for mounting a subject to be copied and a body, and a side edge portion or a side edge of the floor plate. A light source provided at a position facing a surface in the vicinity, and the light emitted from this light source is guided to a position on the back side of the surface of the floorboard in a direction parallel to the surface of the floorboard and the surface of the floorboard. It is characterized in that it is configured to include a light guide path for emitting a substantially same amount of light from each of a plurality of locations.

According to a second aspect of the invention, in the transcription lighting device of the first aspect, the light guide path reflects light from the light source guided in a direction parallel to the surface of the floor plate, and The present invention is characterized in that a reflecting surface for emitting a substantially same amount of light from each of a plurality of positions on the surface of the floorboard is provided at a position on the back surface side of the surface of the floorboard.

According to a third invention, in the illuminating device for copying according to the first or second invention, the light guide path guides light emitted from the light source in a direction parallel to the surface of the floor plate. It is characterized in that the fiber is provided at a position on the back surface side with respect to the front surface of the floor plate.

When the transcription lighting device of each of the first to third inventions is used to perform transcription, as in the conventional case, characters or figures to be copied are described, for example, paper or film. The original drawing, that is, the subject is placed on the floor board. Then, a copying paper, a copying film or the like is placed on the subject, and the light source is turned on. The light from the light source is guided in a direction parallel to the front surface of the floor plate at a position on the back side of the front surface of the floor plate, and is radiated from each of a plurality of locations on the front surface of the floor plate with substantially the same amount of light. The radiated light passes through the subject and the image body and enters the eyes of the operator in an upward direction, so that the image body looks low even if the image body has a low light transmittance. In other words, it is possible to clearly see the characters and figures written on the subject through the object, so by tracing these characters and figures from above, it is possible to easily copy (trace) these characters and the like onto the object. it can.

Since the light source is provided near the side edge of the floorboard or at a position facing the surface near the side edge, the length from the surface of the floorboard to the lower surface of the transcription lighting device, that is,
The thickness can be reduced. Further, since the light guide path can guide the light from the light source and radiate the light from a plurality of points on the surface of the floor plate, when the body mounted on the floor plate is viewed, the entire body is substantially See through evenly.

According to the transcription lighting device of the second invention,
Since the light guide path has the reflecting surface, the light guiding in the direction parallel to the surface of the floor plate can be reflected substantially vertically upward with respect to the surface of the floor plate and emitted from each position on the surface of the floor plate.

According to the illuminating device for transcription of the third invention,
Since the light emitted from the light source can be guided by the optical fiber, the light can be efficiently guided without leaking to a portion of the surface of the floorboard, which is distant from the light source.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of a lighting device for transcription according to the present invention will be described with reference to FIGS. In each drawing, 9 is a floor plate, 10 is a light source, and 11 is a light guide path.
As shown in FIG. 1, this transcription lighting device 8 is, as in the conventional case, an original drawing such as paper or film on which characters, figures, etc. (not shown) to be transcribed are described, that is, The subject 5 is placed on the base plate 9, and a copy body 6 such as a copy paper or a copy film is placed on the subject 5. Then, the light source 10, for example, a fluorescent lamp is turned on. This light source 10
Light passes through the floor plate 9, the subject 5, and the image body 6 and enters the eyes of the operator upward, so that the image body 6 having a low light transmittance is
However, since the body 6 looks like it is transparent, the characters, figures, etc. written on the subject 5 can be clearly seen through the body 6, and by tracing these characters, figures, etc. from above. The characters and the like can be easily copied (traced) on the image body 6.

As shown in the vertical sectional view of FIG. 1 and the plan view of FIG. 2, the floor board 9 has a vertical length H ₂ of about 21 cm, a horizontal length of about 30 cm, and a rectangular shape with a thickness of 1 mm. It is a plate-like body, and the material thereof is, for example, translucent plastic, glass, or the like. In this way, the floor plate 9 is made semi-transparent so that the light reflected by the reflecting mirrors 20, 21, 22, 23 provided on the lower side of the floor plate 9 does not directly enter the eyes.

The light source 10 is, as shown in FIGS. 1 and 2,
It is, for example, a fluorescent lamp having a short cylindrical shape, and one side edge 1 of the floor plate 9
It is provided in parallel with the side edge 12 at a distance from 2.
The light from the light source 10 is condensed by the condensing means 13 and guided to the light guide path 11. The light collecting means 13 is composed of a reflecting mirror 14 and a concave lens 15. The reflecting mirror 14 has a substantially short cylindrical shape, and its inner peripheral surface is mirror-finished. The diameter of this inner peripheral surface is about three times the diameter of the light source 10, and the light source 10 is arranged at the center. Then, as shown in FIG. 1, the reflecting mirror 14 is provided with a notch having a predetermined width along the center line, and a horizontally long concave lens 15 is provided along the notch. As shown in FIG. 2, the concave lens 15 has a length substantially equal to the vertical length H ₂ of the floor plate 9.

The reflecting mirror 14 has a vertical cross-sectional shape formed into, for example, an ellipse or a part of a circle. As shown in FIG. 1, the concave lens 15 reflects the light emitted from the light source 10. Can be sent to. And the concave lens 15
Makes the light reflected by the reflecting mirror 14 parallel to the surface of the floorboard 9 and directs the light at a right angle to the right edge 12 of the floorboard 9.

As shown in FIG. 1, the light guide path 11 includes two reflecting mirrors 16 and 17, a guide plate 18, and the guide plate 18.
It is composed of four reflecting mirrors 20 to 23 provided in the. 2
The reflecting mirrors 16 and 17 are arranged between the concave lens 15 and the floor plate 9, face each other and are parallel to each other, and form an angle of 45 degrees with the surface of the floor plate 9. This 2
The upper reflecting mirror 16 of the reflecting mirrors 16 and 17 is shown in FIG.
As shown in FIG. 3, the right side edge is in contact with the upper edge of the concave lens 15, and the lower reflecting mirror 17 has the right side edge with the concave lens 1.
It touches the lower edge of 5. On the other hand, the left edge of the upper reflecting mirror 16 is in contact with the right edge 24 of the upper surface of the guide plate 18, and the left edge of the lower reflecting mirror is the right edge 25 of the lower surface of the guide plate 18.
Is in contact with

The guide plate 18 is a transparent plastic plate and has a rectangular planar shape which is the same as the floor plate 9. The material of the guide plate 18 may be glass instead of plastic, for example. The thickness is about 15 mm. However, although the thickness is set to 15 mm, other thicknesses may be used. As shown in FIGS. 1 and 2, the guide plate 18 is provided with a total of four reflecting mirrors 20 to 23. Each of the reflecting mirrors 20 to 23 has a narrow width and its length is slightly shorter than the vertical length H ₂ of the floorboard 9. The reflecting surface of each of the reflecting mirrors 20 to 23 is about 45 ° with respect to the surface of the floorboard 9.
And the reflector 17 provided on the light source 10 side.
Is heading for.

These four reflecting mirrors 20 to 23 shown in FIG.
Are arranged at positions where the intervals between adjacent ones are substantially equal to each other, and the reflection area of each of the reflecting mirrors 20 to 23 is equal to that of the light source 1.
The one that is provided farther from 0 is wider. This is because the illuminance E of the reflecting surface of each of the reflecting mirrors 20 to 23 that receives the light from the light source 10 is the distance R from the light source 10 to each reflecting mirror.
This is because it is inversely proportional to the square of. In addition, each reflecting mirror 20-
Reference numeral 23 denotes four grooves 26-2 provided on the lower surface of the guide plate 18.
It is fitted and attached to the bottom of 9.

Therefore, it is desirable that the reflection areas of the reflecting mirrors 20 to 23 are equal to each other in the amount of light reflected by the reflecting mirrors 20 to 23. That is, it is desirable to increase the reflection area as much as the illuminance decreases. The illuminance E (lx) of the reflecting surface of each of the reflecting mirrors 20 to 23 can be calculated by the following equation. Illuminance E (lx) = luminance I (cd) of light source 10 / distance R ² (m)

Next, the operation of the transcription illumination device 8 having the above-mentioned structure will be described. When the power source of the light source 10 shown in FIG. 1 is turned on, the fluorescent lamp which is the light source 10 is turned on, and the light emitted from the light source 10 is reflected by the reflecting surface of the substantially cylindrical reflecting mirror 14 and travels toward the concave lens 15. . The light that passes through the concave lens 15 and exits from the concave lens 15 first travels in a direction parallel to the surface of the floorboard 9, and is then reflected by the reflecting mirror 16 to be reflected by the floorboard 9.
To the direction perpendicular to the surface of the base plate, further reflected by the reflecting mirror 17 to the direction parallel to the surface of the floor plate 9, and transmitted through the inside of the guide plate 18. Of the light that passes through the inside of the guide plate 18, the light 30 that passes through the guide path closest to the lower surface of the guide plate 18 is reflected by the reflecting mirror 20 provided at the first position from the right end and reflected by the floor plate 9. It goes right above the surface, passes through the guide plate 18 and the floor plate 9, and goes out vertically upward from the surface of the floor plate 9. Similarly, among the lights that pass through the inside of the guide plate 18, the lights 31, 32, and 33 that pass through the guide paths that sequentially move away from the lower surface of the guide plate 18 are the second, third, and fourth from the right end. The light is reflected by the reflecting mirrors 21, 22 and 23 provided at the respective positions and goes right above the floor plate 9 and passes through the guide plate 18 and the floor plate 9 to pass through the floor plate 9.
Exit vertically upwards from the surface of. In this way, the light emitted from the light source 10 travels in a direction parallel to the guide plate 18 and is reflected by each of the four reflecting mirrors 20 to 23 so that the light from the substantially entire surface of the floor plate 9 shown in FIG. It can emit light.

The distance between the light source 10 and the reflecting mirror, that is, the reflecting surface of the reflecting mirror 20 closest to the light source 10, is narrowest.
The reflective mirrors 21, 22, and 23 are formed in such a manner that the areas of their reflecting surfaces are gradually increased in the order of the reflecting mirrors 21, 22, and 23,
As a result, the amounts of light reflected by the reflecting mirrors 20 to 23 can be made substantially equal, and light having substantially the same luminous intensity can be emitted from the entire surface of the floorboard 9.

When the transcription lighting device 8 is used for transcription, as shown in FIG. 1, as in the conventional case, for example, a paper on which characters, figures, etc. to be transcribed are described. Alternatively, an original drawing such as a film, that is, a subject 5 is placed on a floor board 9, and a copying paper or a copying body 6 such as a copying film is placed on the subject 5. Then, the light source 10 is turned on. The light from the light source 10 passes through the floor plate 9, the subject 5, and the image body 6 and enters the eyes of the operator upwards. Therefore, even the image body 6 having a low translucency seems to be transparent. Since the characters and figures written on the subject 5 can be clearly seen through the object 6, the characters and figures can be easily spread over the object 6 by tracing these characters and figures from above. It can be copied (traced).

Since the four reflecting mirrors 20 to 23 can reflect the light having substantially the same light quantity, when the body 6 mounted on the floor plate 9 is viewed, The whole body 6 can be seen through almost uniformly. As a result, it is possible to clearly see characters and figures drawn over a wide range of the subject 5 with substantially the same density.

Further, according to this transcription lighting device 8,
Since the light source 10 is provided in the vicinity of the right side edge 12 of the floor plate 9, the length W ₂ from the surface of the floor plate 9 to the lower surface of the guide plate 18, that is, the thickness of the lighting device 8 is equal to that of the light source 10. Since only a part of the thickness is added, therefore, the thickness W ₂ of the transcription lighting device 8 can be made thinner than the conventional thickness W ₁ . As a result, when the transcription lighting device 8 is used by being placed on a desk, for example, the step between the surface of the floorboard 9 and the top of the desk is small, and therefore, when the transcription is performed, the arm of the desk is not moved. Since it can be made substantially parallel to the upper surface, there is an advantage that it is easy to copy.

The transcription illumination device 34 of the second embodiment will be described with reference to FIG. The difference between the second embodiment and the first embodiment is that in the first embodiment, as shown in FIG. 1, the light emitted from the light source 10 is reflected by two reflecting mirrors 14, 1.
In the second embodiment, the light source 10 is provided at a position facing the surface of the floor plate 9 as shown in FIG. The light emitted from 10 is made to pass through the concave lens 15 and then reflected by one reflecting mirror 17 before entering into the guide plate 18. The configuration other than this is the same as that of the first embodiment, and the same portions are denoted by the same reference numerals and detailed description thereof will be omitted.

According to the transcription illumination device 34 of the same embodiment, the reflecting mirror 16 can be omitted as compared with that of the first embodiment, and the transcription illumination device 34 shown in FIG.
The lateral length L ₃ of the can be shorter than that in the first embodiment. However, the thickness D ₃ becomes thicker. The transcription lighting device 34 of the embodiment operates in the same manner as the illumination device 34 of the first embodiment and can be used for transcription in the same manner, and thus detailed description thereof will be omitted.

The illuminating device for transcription 35 of the third embodiment will be described with reference to FIG. The difference between the third embodiment and the second embodiment is that, in the second embodiment, as shown in FIG. 3, after the light emitted from the light source 10 is transmitted through the inside of the guide plate 18, the floor plate 9 Each reflecting mirror 2 provided on the lower side
Although the light is emitted from the surface of the floorboard 9 by being reflected by 0 to 23, in the third embodiment, as shown in FIG. After being transmitted, the light is reflected by the reflecting mirrors 20 to 23 provided on the lower side of the floorboard 9 and emitted from the surface of the floorboard 9. Therefore, the guide plate 18 is omitted in the third embodiment, and the optical fibers 36 to
The 39 and the four reflecting mirrors 20 to 23 are housed in a case 40. In addition, each of the four reflecting mirrors 20 to 23 has a second
Similar to the embodiment, the adjacent elements are arranged at equal intervals, but the first element is provided at the position closest to the light source 10.
The reflecting mirror 20 is provided so as to be closest to the floor plate 9, and the mirrors that are provided at positions that are sequentially away from the light source 10 are sequentially provided away from the floor plate 9 in this order. The above-described configuration is for preventing the light reflected by the four reflecting mirrors 20 to 23 and traveling toward the floorboard 9 from being blocked by the optical fibers 36 to 39. The configuration other than this is the same as that of the second embodiment, and the same portions are denoted by the same reference numerals and detailed description thereof will be omitted.

According to the illuminating device 35 for transcription of the embodiment, the light emitted from the light source 10 is reflected by each of the four reflecting mirrors 20 to 2.
Since the optical fibers 36 to 39 are used to guide the light to the light source 3, the light emitted from the light source 10 can be efficiently emitted without any leakage.
It is possible to guide each of the reflecting mirrors 20 to 23. As a result, the light source 10 having a lower luminous intensity than that of the first embodiment can be adopted, and the size of the transcription lighting device can be reduced. The transcription lighting device 35 of the same embodiment operates in the same manner as the device 34 of the second embodiment and can be used for transcription in the same manner, so a detailed description is omitted.

The transcription illumination device 41 of the fourth embodiment will be described with reference to the plan view of FIG. The transcription lighting device 41 of the fourth embodiment includes a floor plate 42 made of, for example, a semitransparent plastic plate equivalent to that of the second embodiment, and a transparent guide plate 43 provided on the lower surface of the floor plate 42. There is. However, a columnar cutout 44 is provided at one corner of the floor plate 42 and the guide plate 43. Similar to the second embodiment, the light source 45 and the reflecting mirror 4 are provided in the notch 44.
6, a concave lens 47, and a reflecting mirror 48 are provided. Inside the guide plate 43, four reflecting mirrors 49 to 52 extending over substantially the entire area are provided.

As shown in FIG. 5, the light source 45 has a spherical shape and is arranged in a notch 44 formed at one corner of the floor plate 42 and the guide plate 43. Then, similarly to the second embodiment, an elliptical or hemispherical reflecting mirror 46 is provided so as to surround the light source 45. A concave lens 47 having a circular planar shape is arranged below the light source 45, and at a position further below the concave lens 47, the light passing through the concave lens 47 is reflected toward the guide plate 43. A curved reflecting mirror 48 is arranged for this purpose. And 4
The curved arcuate reflecting mirrors 49 to 52 are arranged inside the guide plate 43 over the entire area of the guide plate 43 with the light source 45 as the center and the intervals between adjacent ones being substantially the same. It is provided. The reflecting mirrors 49 to 52 are the reflecting mirrors 48.
The light reflected by can be reflected and directed substantially vertically upward with respect to the surface of the guide plate 43.

In the transcription illumination device 41 having the above-mentioned structure, the light emitted from the light source 45 is condensed by the reflecting mirror 46 formed in an elliptical surface or a hemispherical shape and transmitted to the concave lens 47,
The concave lens 47 directs the light vertically downward with respect to the surface of the floor plate 42. Then, the light is reflected by the reflecting mirror 48.
Then, the inside of the guide plate 43 is directed in a direction parallel to the surface of the floor plate 42 and transmitted. This guide plate 4
The light transmitted through the inside of 3 is reflected by the reflecting mirror 4 as shown in FIG.
8 in the radial direction and in the direction parallel to the surface of the floor plate 42, and each of the four arc-shaped reflecting mirrors 4
The light is reflected by 9 to 52 and radiates vertically upward from the surface of the floor plate 42. Since the transcription lighting device 41 can be used in the same manner as the transcription lighting device 34 of the second embodiment, detailed description thereof will be omitted. According to the transcription lighting device 41, since the spherical light source 45 is used, the light source 45 can be made smaller than the second embodiment,
As a result, it is possible to reduce the size of the transcription lighting device.

However, in each of the above embodiments, the light source 1
The reflecting mirror 1 is used as the light collecting means 13 for collecting the light of 0 and 45.
Although the lenses 4 and 46 and the concave lenses 15 and 47 are used, a reflecting mirror having a shape other than this and a convex lens, for example, may be used.
Then, although the light collecting means 13 is provided, the light collecting means 13 may be omitted or may be replaced with a light collecting means having another structure.

In each of the above-mentioned embodiments, the reflecting mirrors 20 to 23 or 49 to 52 provided at the lower position of the floor plate 9 are arranged in four positions.
Although the number of the reflecting mirrors is one, the number of reflecting mirrors other than this may be provided. Further, these reflecting mirrors 20 to 23 or 49 to
Although 52 is provided at a distance from each other, a large number of reflecting mirrors may be arranged and the plurality of reflecting mirrors may be provided so that adjacent ones are in contact with each other. As a result, the floor plate 9
The light can be well dispersed and emitted from the surface of the.

Although the floor plate 9 is semi-transparent in the above embodiments, it may be transparent.

In the third embodiment, the light emitted from the light source 10 is guided by each of the optical fibers 36 to 39, reflected by each of the reflecting mirrors 20 to 23, and emitted from the surface of the floorboard 9. The reflecting mirrors 20 to 23 are omitted, and the light source 10
The light emitted from the optical fibers 36-39 is guided by the optical fibers 36-39, and the light emitted from the ends of the optical fibers 36-39 is spread on the floor board 9
May be directly emitted from the surface of the.

[0039]

According to the copying illumination device of each of the first to third inventions, the light source is provided at a position facing the side edge of the floor plate or the surface near the side edge. Therefore, it is possible to prevent part or all of the thickness of the light source from being added to the thickness of the transfer lighting device, and thus the length from the surface of the floor plate to the lower surface of the transfer lighting device, that is, The thickness of the transcription lighting device can be made thinner than before. As a result, when this transcription lighting device is used by placing it on a desk, for example, there is a small step between the surface of the floorboard and the top of the desk, and therefore, when the transcription is performed, the arm is placed on the top of the desk. On the other hand, it is possible to make them substantially parallel to each other, which has an effect that it is easy to copy.

Since the light guide path can guide the light from the light source and radiate the light from a plurality of points on the surface of the floor plate, when the object placed on the floor plate is viewed. , The whole body can be seen through almost evenly. As a result, there is an effect that characters, figures, and the like drawn over a wide range of the subject can be clearly seen with substantially the same density.

According to the transcription lighting device of the second invention,
Since the light that guides in the direction parallel to the surface of the floorboard is reflected by the reflecting surface in a substantially right-angled direction and emitted from each location on the surface of the floorboard with substantially the same amount of light, the light is approximately perpendicular to the surface of the floorboard. As a means for radiating upward, it is only necessary to dispose a reflecting surface on the back surface side of the floor plate, and this has the effect that the thickness of this transcription lighting device can be made thinner than before.

According to the transcription lighting device of the third invention,
Since the light emitted from the light source can be guided and emitted by the optical fiber, it is possible to efficiently guide the light to the portion of the surface of the floor plate away from the light source without leaking. As a result, it is possible to employ a light source having a low luminous intensity, and it is possible to reduce the size of the lighting device for copying.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view of a transcription lighting device according to a first embodiment of the present invention.

FIG. 2 is a plan view of the transcription lighting device of the embodiment.

FIG. 3 is a vertical cross-sectional view of a transcription lighting device according to a second embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view of a transcription lighting device according to a third embodiment of the present invention.

FIG. 5 is a vertical cross-sectional view of a transcription lighting device according to a fourth embodiment of the present invention.

FIG. 6 is a vertical cross-sectional view of a conventional transcription lighting device.

FIG. 7 is a plan view of the conventional illuminating device for transcription.

[Explanation of symbols]

 8 Lighting device for transcription 9 Floor plate 10 Light source 11 Light guide path 18 Guide plate 20-23 Reflector

Claims (3)

[Claims] 1. A transparent or translucent base plate having a surface for mounting a subject to be transferred and a body on which the target is to be transferred, and a surface near the side edge or near the side edge of the base plate. A light source provided in a position, and the light emitted from the light source is guided to a position on the back side of the surface of the floorboard in a direction parallel to the surface of the floorboard from a plurality of locations on the surface of the floorboard. An illumination device for transcription, comprising: a light guide path for emitting light. 2. The transcription lighting device according to claim 1, wherein the light guide path reflects the light from the light source guided in a direction parallel to the surface of the floor plate, and the surface of the floor plate. The illumination device for transcription according to claim 1, wherein a reflection surface for radiating substantially the same amount of light from each of the plurality of positions is provided at a position on the rear surface side of the front surface of the floor plate. 3. The layout lighting device according to claim 1, wherein the light guide path includes an optical fiber that guides light emitted from the light source in a direction parallel to a surface of the floor plate. The illumination device for transcription, which is configured to be provided at a position on the back surface side of the front surface.