JPH08179131A - Image transmission body and its manufacture, and image transmitter using the same - Google Patents

Abstract

PURPOSE: To obtain an image transmission body which has an extremely simple structure and can enlarge or reduce and from an incident image and is manufactured easily and inexpensively. CONSTITUTION: Many cores 2 which propagate light are arrayed longitudinally and laterally at certain intervals and the outer peripheral surface of the cores 2 is coated with a clad 3 which confines the light. All the cores 2 are formed into a conical shape which becomes gradually thick from one side to the other side, and the cores are gathered at small intervals on one side and dispersed and arrayed at large intervals on the other side, and all the cores 2 are coupled by the clad 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fiber optic image transmission body for directly transmitting an image, a method for manufacturing the same, and an image transmission apparatus using the same.

2. Description of the Related Art Generally, in a fiber optic system for transmitting a light flux or an image using light tubes made of various substances and having various shapes, the light tubes are intended for the visible light region. In this case, an optical fiber structure in which a high-refractive-index optical glass is used as a core and a low-refractive-index glass is coated around it as a glad is used (Optical Technology Handbook, Supplement Published by Asakura Publishing Co., Ltd.). A large number of thin optical fibers arranged vertically and horizontally into a fiber bundle is the other end surface (imaging surface) obtained by dividing the image projected on one end surface (image input surface) of the fiber bundle into individual fibers. It can be used for fiberscopes and image transmission devices for automobiles (Japanese Patent Laid-Open No. 3-99553 and Shokai 60-73).
634). The optical fiber used in the medical endoscope is a bundle of 20,000 to 40,000 fibers each having a diameter of several tens of microns, and the overall diameter is about 10 mm. Instead of a glass material, a plastic material is used. Tend to be used.

[0002]

The conventional optical fiber has the same diameter throughout its length, and the image transmission body formed of the optical fiber bundle is
The size of the image transmitted from the image plane to the image plane is the same, and it is difficult to enlarge or reduce the image by the optical fiber itself unless an optical lens or a mirror is used. Optical fiber manufacturing methods include rod method, melting method, and multi-bulb fiber method, etc., but even if there is a difference in each method, one fiber or multiple fibers at the same time, the diameter of the fiber produced is uniform over the entire length. Is. Further, the optical fiber bundle can be compressed to deform the fiber cross section from a circular shape to a quadrangular shape or a hexagonal shape, but one optical fiber cannot be formed into a conical shape.
Therefore, when such an optical fiber is used in an endoscope or an image transmission device (visual confirmation device) of an automobile, a plurality of optical lenses are combined to form an image plane so that the image plane can be visually recognized. Need to be enlarged, the device is complicated and expensive, it is difficult to see, and it is difficult to endure vibration.

An important object of the present invention is to provide an image transmission body in which the image to be transmitted can be enlarged / reduced by forming the core in the shape of a cone whose cross-sectional area gradually increases from one side to the other side. It is in. It is an object of the present invention to provide an image transmission body capable of enlarging / reducing an image to be transmitted by cutting an end face of a fiber bundle with respect to the longitudinal direction of an optical fiber and cutting it to form an enlarged cross section. is there. Further, an important object of the present invention is to perform image transmission capable of forming a conical core by forming a conical hole in the material with a perforating means from the outside of the material and filling the hole with a material forming a core. A method of manufacturing a body is provided. An object of the present invention is to form a cone-shaped glad cone-shaped hole in the main body material by a punching means from the outside of the main body material,
An image carrier capable of forming a cone-shaped core by covering the inner peripheral surface of all the glad cone holes with a material forming the glad to a substantially uniform thickness and filling the material forming the core in the glad. It is to provide a manufacturing method. Further, an important object of the present invention is to arrange an image transmission body having a conical core in such a manner that the large-interval surface of the core is located at or near the operation panel of the vehicle, and the small-interval surface of the core is used as a long-scale image transmission body. An object of the present invention is to provide an image transmission device that can be used as a visual recognition device of a vehicle by connecting the device and making the outside of the vehicle visible. It is an object of the present invention to provide a plurality of image transmission bodies adjacent to each other so that the large core spacing surface forms the same plane, and connect one end surface of the intermediate image transmission body to the small core spacing surface of each image transmission body. By connecting a plurality of intermediate image transmission members together and connecting them to the small core spacing surface of the image transmission member, and connecting the large spacing core surface of this image transmission member to the surface of the display, the image on the display is enlarged and combined. An object is to provide an image transmission device capable of forming an image.

[0004]

A first concrete means for solving the problems in the present invention is to arrange a large number of cores 2 for propagating light at intervals in vertical and horizontal directions, and to provide an outer periphery of all the cores 2. In an image transmission body whose surface is covered with a glad 3 for confining light, all the cores 2 are formed in a pyramid shape that gradually increases from one side to the other side, and one side is gathered at a small interval and the other side is That is, they are dispersedly arranged at large intervals, and all the cores 2 are connected by the glad 3. A second specific means for solving the problem in the present invention is to form an optical fiber 4 by coating the outer peripheral surface of the core 2 that propagates light with a glad 3 that traps the light, and form a large number of all optical fibers 4. In the image transmitter arranged vertically and horizontally, the core 2 in each of the optical fibers 4 is formed in a cone shape that gradually increases from one side to the other side, and one side of all the optical fibers 4 is gathered at a small interval and That is, the other side is dispersedly arranged at large intervals and is bonded to each other by a bonding material 7. The third concrete means for solving the problems in the present invention is arranged in addition to the first or second concrete means, so that the focal points of the axial centers of all the cores 2 are gathered at one point. Is. In addition to the first or second specific means, a fourth specific means for solving the problems in the present invention is such that the focal point of the axis of the core 2 is far from the center close to the transmission image center of the image transmission body. It means displacing objects from a short distance to a long distance. A fifth specific means for solving the problems in the present invention is, in addition to the first or second specific means, gathers the focal points of the axial centers of the unidirectionally arranged unidirectional rows of the cores 2 at one point, That is, the focal points of the core 2 are arranged at equal intervals in the other direction. A sixth concrete means for solving the problem in the present invention is the concrete means according to any one of the first to fifth aspects, in addition to the small core spacing surface on one side of the image transmission body and the large core spacing on the other side. The arrangement interval of the cores 2 on at least the core large-interval surface of the surfaces is set to be equal. The seventh concrete means for solving the problems in the present invention is, in addition to any one of the first to sixth concrete means,
The large-interval core surface of each image transmission body is a circular surface or a rectangular surface when viewed from the front, and a three-dimensional shape is a flat surface, an arc surface, or a spherical surface. Eighth concrete means for solving the problems in the present invention includes, in addition to any one of the first to sixth concrete means, the core small interval surface of each image transmission body has a circular shape or a rectangular shape in a front view. It is a surface, and the three-dimensional shape is a flat surface, an arc surface, or a spherical surface. Ninth Solution to Problems in the Present Invention
The specific means of the above is an image transmission body in which a large number of optical fibers 4 each having a core 2 covered with a glad 3 are arranged vertically and horizontally to form a fiber bundle having a substantially rectangular cross section. That is, it is formed with an enlarged cross section by inclining with respect to the longitudinal direction. The tenth concrete means for solving the problem in the present invention is a first equal magnification in which a large number of optical fibers 4 in which a core 2 is covered with a glad 3 are arranged vertically and horizontally to form a fiber bundle having a substantially rectangular cross section. The end face of the image transmission body 5 is inclined with respect to the longitudinal direction of the optical fiber 4 and cut to form an enlarged cross section, and the first enlargement cross section of the first equal-magnification image transmission body 5 has one end face having substantially the same area. Further, the second equal-magnification image transmission body 6 of a fiber bundle having a substantially rectangular cross-section having the corresponding optical fibers 4 is connected at a right angle, and the other end surface of the second equal-magnification image transmission body 6 is arranged with respect to the longitudinal direction of the optical fiber 4. That is, it is inclined and cut to form a large enlarged cross section. The eleventh concrete means for solving the problems in the present invention is that, in addition to the ninth or tenth concrete means, a large number of optical fibers 4 are densely arranged in one of the vertical and horizontal directions and roughly arranged in the other. The fiber bundle has a substantially rectangular cross section, and the end faces of the fiber bundle are connected to each other while being inclined with respect to the longitudinal direction and the dense direction of the optical fibers 4. The twelfth specific means for solving the problem in the present invention is that, in addition to any one of the first to eleventh specific means, the cross-sectional shape of each core 2 is formed into a circular shape or a rectangular shape. . The first specific means for solving the problem in the method of the present invention is to form the transmitter material 8 from the material forming the glad 3, and to perforate the transmitter material 8 from the outside of the transmitter material 8 by punching means 9. The conical hole 10 whose cross-section gradually becomes larger from one surface side to the other surface side,
This is to form a large number in the vertical and horizontal directions so that one surface side has a small interval and the other surface side has a large interval, and the whole conical hole 10 is filled with the material forming the core 2. The second specific means for solving the problem in the method of the present invention is a perforating means 9 from the outside of the block-shaped main body material 11, which is a glad cone whose cross section gradually increases from one side to the other side of the main body material 11. Shaped hole 12
A number of them are formed vertically and horizontally so that one side has a small interval and the other side has a large interval, and the inner peripheral surface of all the glad cone holes 12 is coated with a material forming the glad 3 to a substantially uniform thickness. , Filling the coated glad 3 with the material forming the core 2. A third specific means for solving the problem in the method of the present invention is a perforating means 9 from the outside of the block-shaped main body material 11, which is a glad cone whose cross-section gradually increases from one side to the other side of the main body material 11. A large number of shaped holes 12 are formed longitudinally and laterally so as to have a small interval on one side and a large interval on the other side, and the material for forming the glad 3 is filled in the inner peripheral surface of all the glad cone holes 12, 3 After solidification, a core conical hole 10 having a cross-sectional area gradually increasing from one side to the other side is formed in the glad 3 from the outside of the main body material 11 by the perforating means 9 concentrically with each of the glad conical holes 12. That is, the material for forming the core 2 is filled in the core conical hole 10 in the glad 3. A fourth specific means for solving the problem in the method of the present invention is that the perforation means 9 is an apparatus for irradiating a laser beam in addition to any one of the first to third specific means. Fifth for solving the problems in the method of the present invention
In addition to the fourth specific means, the perforation means 9 is to squeeze and guide the radiated laser beam by a screen 22 having a large number of holes in the vertical and horizontal directions. The sixth concrete means for solving the problems in the method of the present invention is
In addition to any one of the first to third concrete means, the internal gas is sucked from one of the conical holes and the material filling the conical holes is pressed from the other. The seventh concrete means for solving the problems in the method of the present invention is, in addition to any one of the first to third concrete means, a material which fills the conical hole from one of the conical holes to be subjected to a capillary phenomenon. It is to use and fill. Eighth concrete means for solving the problem in the method of the present invention, in addition to any one of the first to third concrete means, holds the material on the movable carrier 13 at intervals in the movement direction, This is to move the transfer body 13 intermittently to transfer the material to the work position. A first concrete means for solving the problems in the combination of the present invention is the image transmission body,
A plurality of cores 2 having substantially the same number of cores of different sizes are provided, and the core small spacing surface of the large image transmitting body having substantially the same area as that of the core small spacing surface of the small image transmitting body is in contact with the core large spacing surface. It means connecting comrades. A second specific means for solving the problem in the combination of the present invention is to provide the same number of the cores 2 of the image transmission body and substantially corresponding positions on the small core spacing surface or the large core spacing surface of the image transmission body. That is, the long-size equal-magnification image transmission body 14 of the fiber bundle formed by arranging the optical fiber 4 side by side is connected. A third specific means for solving the problem in the combination of the present invention is to provide the same number of cores of the image transmission body as the number of the cores 2 of the image transmission body on the small core spacing surface or the large core spacing surface of the image transmission body. Is connected to a face plate 21 formed by arranging the cores 2 in parallel with each other. The first concrete means for solving the problem in the device of the present invention is to dispose the image transmission body at the operation panel 16 inside the vehicle 15 where the large-interval surface of the core is visible to the driver or in the vicinity thereof, and One end surface of the long-size equal-magnification image transmission body 14 is connected to the small-interval surface, and the other end surface of the long-size equal-magnification image transmission body 14 is connected to the outside visual recognition means 17 fixed to the vehicle 15. . A second specific means for solving the problem in the device of the present invention is, in addition to the first specific means, that the image transmission body is arranged on the inner surface of the door 62 of the vehicle 15 and the outside visual recognition means 1 is provided.
7 is arranged on the outer surface of the door 62. A third specific means for solving the problem in the device of the present invention is one in which the image transmission body has a large core spacing surface as an image receiving surface B and a small core spacing surface as an image receiving surface B. An intermediate image transmission body 18 is formed by arranging a pair of small core spacing surfaces so that they face each other, and between the two small core spacing surfaces, approximately the same number of cores 2 as those of these image transmission bodies are arranged vertically and horizontally. Is to connect and arrange. In addition to the third specific means, a fourth specific means for solving the problem in the device of the present invention includes the two image transmission bodies and one intermediate image transmission body 18 between the two image transmission bodies.
The pillar 19 supporting the roof of No. 5 is provided in the see-through window 20 formed so as to penetrate indoors and outdoors. A fifth specific means for solving the problem in the device of the present invention is to connect the small core spacing surface or the large core spacing surface of the image transmission body to the surface of the display 23. A sixth concrete means for solving the problem in the device of the present invention is that a plurality of the image transmitting bodies are adjacent to each other so that the large core spacing surfaces form extension surfaces with each other, and the small core spacing surface of each image transmitting body is adjacent. Is connected to one end surface of an intermediate image transmission body 18 formed by arranging substantially the same number of cores 2 as the image transmission body 2 vertically and horizontally, and the plurality of intermediate image transmission bodies 18 are bound together to form a total core. 2 is connected to the small-interval surface of the image-transmission-side image transmission body having the same number of cores 2 as that of the core 2, and the large-interval core surface of the image-transmission-side image transmission body is connected to the surface of the display 23. . A seventh concrete means for solving the problem in the device of the present invention is that, in addition to the sixth concrete means, the intermediate image transmission body 18 is formed by an image transmission body.

[0005]

When an image is incident on the small-interval surface of the core on one side of the image transmission body 1, the light entering the core 2 is totally reflected by the glad 3 and goes straight, and gradually goes to the other side of the core 2. Since the cores 2 become thicker and the cores 2 are dispersedly arranged at large intervals in the large-interval surface of the image transmission body 1, an enlarged image is formed. Arranging so that the focal points of all the cores 2 are gathered at one point,
When the large and small core spacing surfaces of the image transmission body 1 are parallel planes, the cores 2 are arranged at equal intervals vertically and horizontally on each surface.
When the focal point of the axis of is shifted from a near distance to a far distance from the center of the image transmitted by the image transmission body from a short distance to a long distance, even if the small core spacing surface is spherical, the core 2 is vertically and horizontally aligned with the large core spacing surface. It is arranged at intervals. When the focal points of the axial centers of the unidirectionally arranged rows and columns of the cores 2 are gathered at one point and the focal points of the cores 2 are arranged at equal intervals in the other direction, large and small core spacing surfaces are formed in an arc shape. When the optical fibers 4 are arranged side by side vertically and horizontally to form a fiber bundle having a substantially rectangular cross section, and the end face of this fiber bundle is inclined with respect to the longitudinal direction of the optical fiber 4 and cut, the inclined cut surface becomes an enlarged cross section. If a fiber bundle that fits the inclined cut surface is joined and the fiber bundle is cut in different directions, a larger enlarged cross section is obtained. When the transmission material 8 is formed of a glad forming material, a large number of conical holes 10 are formed in the transmission material 8 by the boring means 9, and the whole conical holes 10 are filled with the material for forming the core 2, the axial center becomes A large number of conical cores 2 gathered on one side
Is formed. A large number of glad-pyramidal holes 12 are formed in the main body material 11, all the glad-pyramidal holes 12 are coated with a substantially uniform thickness, and the coated glads 3 are filled with a core forming material, or The shaped hole 12 is filled with a glad forming material, and the core cone-shaped hole 1 is filled with the laser beam 9 therein.
When 0 is formed and the core-conical hole 10 is filled with the core-forming material, a large number of conical cores 2 are formed. When forming the glad cone hole 12 or the core cone hole 10 in the main body material 11 or the glad molding material, the internal gas is sucked from one of the cone holes and the material filling the cone hole is pressed from the other. The use of capillarity or the filling of the glad-forming material or core-forming material is smooth and reliable. The large-interval surface of the image transmission body 1 is arranged at the operation panel 16 or a position in the vicinity thereof, and one end surface of the long-size equal-magnification image transmission body 14 is connected to the small-interval surface of the core. Visual recognition means 1 in which the other end surface of the
When it is connected to the vehicle 7, the driver can see the outside of the vehicle 15 by enlarging the outside. Two image transmitters 1, 1 and 1 between them
When one intermediate image transmitter 18 and one intermediate image transmitter 18 are provided in the see-through window 20 formed so as to penetrate the interior and exterior of the pillar 19, the blind spot due to the pillar 19 is eliminated. A plurality of large-interval core surfaces of the image transmission body 1 are adjacent to each other so as to form extended surfaces, an intermediate image transmission body 18 is connected to each small spacing surface of the cores, and the plurality of intermediate image transmission bodies 18 are bound together. And the small core spacing surface of the image-transmitting side image transmission body is connected to the surface of the display 23, the image of the display 23 is displayed on the plurality of image transmission bodies 1. Will be enlarged and imaged.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 show a first embodiment of the present invention, in which an image transmission body 1A includes a large image transmission body 1a, a small image transmission body 1b, a long-size equal-magnification image transmission body 14, and a face plate 21. The large and small image transmitters 1a and 1b have different sizes, but have similar structures, and can be used independently. The image transmitter 1A is a combination, but one image It can also be recognized as a transmission device. The large / small image transmitters 1a and 1b are each formed in a substantially truncated pyramid shape, and the large area surface side of the small image transmitter 1b is connected to the small area surface side of the large image transmitter 1a. The face plate 21 is connected to the large-area surface side, and the long-size equal-magnification image transmission body 14 having a substantially square cross section is connected to the small-area surface side of the small image transmission body 1b.
Each of the large / small image transmitters 1a and 1b has a large number of cores 2 for propagating light having a high refractive index, which are arranged at intervals in the vertical and horizontal directions in a glad 3 for confining light having a low bending ratio.
Is covered with Glad 3. Glad 3
Is made of glass or opaque plastic having a low bending rate, or a binder mixed therein, and it is possible to mix a magnetic material, and the outer shape thereof is a block having a substantially quadrangular pyramid shape. . Both ends of the glad 3 are flat. As the Glad 3 material, for example, BK7, Kimble R6, styrene resin and methacrylic resin or a combination thereof, and other known resins or glass can be used. The cores 2 are made of glass or transparent plastic having a high refractive index, and each core 2 has an image transmission body 1A.
It is shaped like a cone that gradually increases from one side to the other. Examples of the material of the core 2 include shots F2 and SF
6, acrylic resin such as MMA, other known resin or glass can be used. In the case of the manufacturing method of the present invention described later, it is preferable that the softening point of the core 2 is lower than that of the glad 3 and the difference is large. For example, when exemplifying a glass composition example (from BP, 11129 of Corning Incorporated), the core material is SiO2 (12.8), B2O3 (19.0),
CaO (3.4), BaO (47.6), PbO (5.0), TiO2 (2.0), La2O3 (10.0),
As2O3 (0.2) with a softening point of 662 ° C. As a glad material, SiO2 (70.0), B2O3 (28.0), K2O (0.5), Li2O (1.5),
Those having a softening point of 746 ° C. can be used. The core 2 has a circular cross section (a cross section orthogonal to the axis), but may have a rectangular shape such as a quadrangle or a hexagon.
Regarding the arrangement interval, one side surface of the image transmission body 1A has a small interval and the other side surface has a large interval, and the cores 2 are arranged in a square shape or arranged in a square or hexagonal close-packed manner in each surface. Core 2
In the vertical and horizontal arrangement state, one side is gathered at small intervals and the other side is dispersedly arranged at large intervals, and as shown in FIG.
Are arranged so that the focal points S of the axis center of are gathered at one point,
If both side surfaces of the image transmission body 1A are parallel flat surfaces, the arrangement intervals of the cores 2 on the small core spacing surface and the large core spacing surface are equal. The distance between the cores 2 on the small core spacing surface and the size of the end surface are proportional to the distance between the cores 2 on the large core spacing surface and the size of the end surface, respectively. The image is enlarged vertically and horizontally at the same ratio and is formed as an enlarged image on the core large-interval surface. The long-size equal-magnification image transmission body 14 is formed by arranging a plurality of cores 2 having a uniform length in the entire length in the vertical and horizontal directions and connecting the gaps with the glad 3 to form a long cable having a substantially square cross section. As the long-size equal-magnification image transmission body 14, an optical fiber bundle used in an endoscope may be used. Face plate 21
Is a plate in which a large number of cores 2 having a uniform length are arranged vertically and horizontally, and the gaps between the cores 2 are connected by the glad 3 to form a plate having a quadrangular cross section. The front view has the same shape as the image transmission body 1A, and one side has a shape capable of being interviewed with the large image transmission body 1a.
The other side surface can be formed into a flat surface, an arc surface, or a spherical surface. When the large / small image transmitters 1a and 1b are used for enlargement, the large image transmitter 1a
The large spacing surface (the other side) becomes the image forming surface A, which is connected to the face plate 21, and the small spacing surface (the one side) becomes the image input surface B, which is the large spacing surface (the other side) of the small image transmitter 1b. The image input surface B is connected to the image forming surface A, and the image input surface B on the small interval surface (one side) is connected to the image forming surface at the end of the long-size equal-magnification image transmission body 14. Therefore,
The image transmitted by the long-size equal-magnification image transmission body 14 enters the small-sized image transmission body 1b and is enlarged, and is further enlarged by the large-sized transmission body 1a.
The second step is enlarged and the enlarged image is displayed on the face plate 21.
Can be seen through. The large image transmission body 1a, the small image transmission body 1b, the long-size equal-magnification image transmission body 14, and the face plate 21 have substantially the same number of cores 2. For example,
The number of pixels is 50 to 1200 in the vertical direction and 50 to 1200 in the horizontal direction. The larger the number, the more pixels and the finer the reproduced image becomes. However, it is determined in consideration of the purpose of use and cost. Further, one side of the cross section of the long-size equal-magnification image transmission body 14 is 10
The image plane A of the small image transmission body 1b in FIG. 1 is 4 times that in FIG. 1, and the image plane A in the large image transmission body 1a is 10 times that in FIG. .
Furthermore, the long-size equal-magnification image transmission body 14 may be connected to the image plane B of the large image transmission body 1a so that the transmitted image can be viewed on the image plane A of the large image transmission body 1a. The large image transmitter 1a, the small image transmitter 1b, the long-size same-magnification image transmitter 14 and the number of the cores 2 of the face plate 21 may be slightly different from each other, and may be vertically or horizontally displaced on each connection surface. If the cores 2 are connected and light is transmitted, there is no problem in image transmission.

FIG. 4 shows an individual manufacturing method of the image transmission body 1A, in which the materials forming the glad 3 are combined to form a truncated pyramid-shaped transmission body material 8, and the transmission body material 8 is formed.
Is placed in a molding die 26 having a truncated pyramidal chamber 26a, a screen 22 is placed on the small opening side of the chamber 26a, and a pressing die 25 having a flow hole 25a is placed on the large opening side of the chamber 26a. A laser beam 9A is radiated from the outside of the screen 22 by the laser device 27 of the perforating means 9 to form the conical hole 10 having a gradually increasing cross section from one surface side to the other surface side of the transmitter material 8. Screen 22
The pressing die 25 is made of a metal or an alloy that does not dissolve in the laser beam 9, and the screen 22 has a large number of ray guide holes 22a for accurately forming the conical holes 10 in the transmitter material 8 at regular intervals. Therefore, the laser beam 9 perforates the transmitter material 8 while being focused by the beam guide hole 22a. The gas generated at the time of punching with the laser beam 9 is naturally discharged or sucked and discharged through the flow hole 25a of the pressing die 25. Next, the screen 22 and the perforating means 9
Is retracted from the molding die 26 and the through hole 2 of the pressing die 25
The molten material forming the core 2 is injected from 5a to form the conical hole 1
Fill to 0. The laser device 27 of the perforating means 9 irradiates the screen 22 with the laser beam 9 directly from a laser gun or through a polarizing means such as a reflecting mirror.
Irradiation may be performed corresponding to each light guide hole 22a or may be performed while scanning. The perforation means 9 may be other than the laser device 27 as long as it can efficiently form a large number of micron-scale holes.

FIG. 5 shows a continuous manufacturing method of the image transmission body 1A and its apparatus. The manufacturing apparatus arranges a molding die 26 having a quadrangular pyramid trapezoidal chamber 26a adjacent to or at a constant interval to a long and intermittently movable carrier 13, and moves the molding die 26 to a position where it is intermittently moved and stopped. Correspondingly, the plug body 28 and the glad material supplying means 33 for the first step, the screen 22, the perforating means 9 and the pressing die 25 for the second step.
The negative pressure generating means 32 and the core material filling means 30 for the third step, and the image transmission body pushing means 34 for the fourth step. The mold 26 can be moved far and near. The molding die 26, the screen 22 and the punching means 9 are the same as those used in the individual manufacturing method, and the plug 2
Reference numeral 8 is a block that closes a small opening of the chamber 26a of the molding die 26. The pressing die 25 only discharges gas and does not supply material, and the negative pressure generating means 32 is connected to a vacuum pump to fill core material. The means 30 is capable of supplying the material from above the transmitter body material 8 to the full conical hole 10 while pressurizing the material, and the image transmitter pushing means 34 is constructed so that the pusher can be pushed out by an air cylinder or the like. In the manufacturing method, the mold 26 is moved to the first position by the intermittent movement of the carrier 13.
In the process, the stopper 28 rises and closes the small opening on the lower side of the chamber 26a of the mold 26, and the chamber 26a is closed.
A molten material for forming the glad 3 is injected from above into the glad material supply means 33, cooled and solidified to form a square pyramidal trapezoidal block-shaped transmission body material 8, and then the plug body 28 is formed. Evacuate downwards. Next, when the molding die 26 is intermittently moved to enter the second step, the screen 22 and the perforating means 9 are raised to dispose the screen 22 in the small opening of the square pyramidal trapezoidal chamber 26a, and The pressing die 25 is lowered to the upper side, and the laser beam 9 is irradiated from the outside of the screen 22 by the laser device 27 to melt and perforate the transmitter material 8 to form a pyramidal shape whose cross-section gradually increases from one side to the other side. Forming holes 10 to hold down the gas during melting 25
It is discharged through the circulation hole 25a. After the conical hole 10 is formed, the screen 22, the laser device 27, and the pressing die 25 are respectively withdrawn to the retracted position. Then, again, the mold 2
6 is moved intermittently to move the transmitter material 8 to the third process position, where the negative pressure generating means 32 is raised and the core material filling means 30 is lowered to face the transmitter material 8 to form a conical hole. The molten material forming the core 2 is injected from above into the core material 10 by means of the core material filling means 30, and at the same time, the gas in the cone-shaped hole 10 is sucked from below by the negative pressure generating means 32, so that the total cone-shaped hole 1
Firmly press the core material into 0. When the core molding material is cooled and solidified, the image transmission body 1A is completed, the molding die 26 is intermittently moved and sent to the fourth step, and the extrusion means 34 takes out the image transmission body 1A as a product from the chamber 26a of the molding die 26.

FIG. 6 shows a second embodiment of the image transmission body 1. In the first embodiment, both side surfaces of the image transmission body 1A were parallel flat surfaces. In the transmission body 1B, the small-interval surface is formed into a concave spherical surface, and accordingly, the end surface of the long-size equal-magnification image transmission body 14 is also formed into a convex spherical surface. In this case, the cores 2 on the small spacing surface of the image transmission body 1B correspond to the vertical and horizontal arrangements of the respective cores 2 of the long-size equal-magnification image transmission body 14.
When the position of is set, the focal point S of the axis of all the cores 2 is set to 1
When arranged so as to gather at points (circle), the arrangement intervals of the cores 2 on the core large-interval surface are as shown by the chain line.
It changes so that it becomes dense on the transmission center side of the image transmission body 1B and becomes coarser toward the periphery. The one-point set as described above is suitable for forming the large-interval surface of the image transmission body 1B into a spherical surface substantially parallel to the small-interval surface of the core, or for the purpose thereof. In order to obtain a normal magnified image by connecting with 14, the vertical and horizontal arrangement intervals of the cores 2 should be made equal in the large core spacing surface, as shown by the dotted line, from the transmission center side of the image transmission body 1B to the periphery. As it goes, the focal point S of the core of the core 2 is moved from the position farther from the image transmitter 1B (X).
Need to be displaced. In order to form such a core 2 having different focal points S, it is sufficient to form a light beam guide hole 22a for guiding only the light in the dotted line direction in the screen 22 for guiding the laser beam 9A of the perforating means 9. In this case, the laser device 27 for irradiating the laser beam 9A or the polarizing mirror is moved for scanning, the thick laser beam 9 over the entire area of the screen 22 is radiated for a long time, and the like, and the perforation is performed.

FIGS. 7 and 8 show a third embodiment. In the image transmission body 1C, the outer peripheral surface of the core 2 is covered with the glad 3 to form the optical fibers 4, and all the optical fibers 4 are vertically and horizontally arranged. The optical fibers 4 are arranged and connected by a bonding material 7 to form a truncated cone, and the core 2 in each optical fiber 4 is a pyramid that gradually increases from one side to the other side, and all the optical fibers 4 are formed on one side. They are gathered in small intervals and distributedly arranged in large intervals on the other side. The binding material 7 is made of non-transparent glass or plastic. The small-interval surface of the core of the image transmission body 1C and the long-size equal-magnification image transmission body 14 are in spherical contact as shown in the second embodiment.
A face plate 21 is provided on the large-spacing surface of the core.
Also has a large number of optical fibers 4 in which the core 2 is coated with the glad 3 in a vertical and horizontal direction and in a circular cross section, and substantially the same number corresponds to each other on each connection surface with the image transmission body 1C. The image transmitter 1
The cross-sectional shapes of C, the long-size equal-magnification image transmission body 14, and the face plate 21 may be substantially quadrangular or other rectangular shapes. The image transmission body 1C can be adjusted in position around the center of the spherical surface with respect to the long-size equal-magnification image transmission body 14, and therefore the image transmission body 1C is adjusted.
It is preferable that the number of the C optical fibers 4 is larger than that of the long-size equal-magnification image transmission body 14.

FIG. 9 shows a continuous manufacturing method of the image transmitting body 1C and its apparatus. The mold 26 is arranged on the carrier 13, and the plug 28F for the first step and the main body material supply means 33 are provided corresponding to the position where the mold 26 is intermittently moved and stopped.
F, the screen 22F for the glad for the second step, the punching means 9F and the pressing die 25F, the negative pressure generating means 32F and the glad material filling means 30F for the third step, and the fourth step.
The process core screen 22R, the punching means 9R and the pressing die 25R, the core negative pressure generating means 32R and the core material filling means 30R for the fifth step, and the image transfer body pushing means 34 for the sixth step. Are provided, and the constituent means and the like of each step are appropriately movable in the forward and backward directions with respect to the carrier 13 and the molding die 26. In the manufacturing method,
When the molding die 26 enters the first step by the intermittent movement of the carrier 13, the chamber 26a of the molding die 26 is closed by the plug 28F and the material to be the binding material 7 is injected by the main body material supply means 33F and cooled. It is solidified to form a block-shaped main body material 11 having a truncated pyramid shape. The molding die 26 is put into the second step, and the screen 22F for the glad and the perforating means 9F are provided.
To place the screen 22F in the small opening of the truncated pyramidal chamber 26a, lower the pressing die 25F to the upper side of the main body material 11, and irradiate the laser beam 9A of the perforating means 9F from the outside of the screen 22F, The main body material 11 is perforated by melting to form a glad pyramidal hole 12 having a cross-sectional area gradually increasing from one side to the other side, and the gas at the time of melting is discharged through the flow hole 25a of the pressing die 25F. Then, the molding die 26 is intermittently moved again to move the main body material 11 to the third step position, where the negative pressure generating means 32F is raised and the glad material filling means 30F is lowered to face the main body material 11. Then, the material is injected into the glad cone hole 12 from above by the glad material filling means 30F, and at the same time, the gas in the glad cone hole 12 is sucked from the lower side by the negative pressure generating means 32F to form a whole cone hole. Firmly press in the Grad material into 12. After the injection of the glad material, the molding die 26 is intermittently moved to the fourth step, and the screen 22R for the core, the punching means 9R and the pressing die 25R are used to solidify the glad cone in the glad cone hole 12. A laser beam 9A is applied to the axial center of the shaped column to form the conical hole 10 and the cylindrical glad 3. Again, the molding die 26R is intermittently moved to move the main body material 11 to the fifth step position, where the negative pressure generating means 32R for core and the core material filling means 30R are used to move the core 2 into the conical hole 10. The molten material to be formed is injected, and the image transmission body 1C is taken out by the pushing means 34 in the sixth step.

A fourth embodiment shown in FIG. 10 shows an image transmission body 1D in which the large and small spacing surfaces of the core 2 are arcuate surfaces or spherical surfaces, and a manufacturing method thereof. This manufacturing method is the same as the third embodiment.
It can also be used in the method of manufacturing the image transmitter 1C of the embodiment. A block-shaped main body material 11 is formed of glass or plastic, the inner and outer surfaces of which are arc surfaces or spherical surfaces, and a screen 22 is arranged on the side of the center of curvature of the main body material 11.
A laser beam 9A is emitted from the outside through a laser device 27 via 2 to form a glad pyramidal hole 12 having a cross section gradually increasing from one side to the other side of the main body material 11. The material for forming the glad 3 is coated on the inner peripheral surface of all the glad pyramidal holes 12 through the glad material coating device 35 to the glad conical holes 12 formed in this manner to a substantially uniform thickness. As a coating method by the glad material coating device 35,
There is coating, plating, vapor deposition, or the like, and it is preferable that the glad 3 has a uniform thickness as much as possible. When the inner peripheral surface of the glad cone hole 12 is covered with the glad material 3 with a substantially uniform thickness, the cone hole 10 remains in the inside thereof, and the core 2 is formed in the cone hole 10. The material to be filled is filled by the core material filling device 30. As a result, the core 2 has a conical hole 10
Is formed in the same shape, that is, the cross section gradually increases in area from one side to the other side, and is arranged at a small interval on one side and at a large interval on the other side. In the image transmitters 1C and 1D shown in the third and fourth embodiments, the cone-shaped core 2 is covered with the glad 3 to form the optical fiber 4, and a large number of the optical fiber 4 and the core 2 are formed. The small end surface is bound to one side and the large end surface is bound to the other side, and the optical fibers 4 are impregnated with an adhesive and bonded. As a result, it is possible to form an enlarging / reducing image transmission body having the required number of optical fibers 4.

The fifth embodiment shown in FIGS. 11 to 13 shows a stereoscopic arc-shaped image transmission body 1E which is rectangular in a front view, and the image transmission body 1E is arranged in a unidirectional array in vertical and horizontal directions. Core 2
The focal points S of the axes of the cores 2 are gathered at one point, and the focal points S of the core 2 are arranged at equal intervals in the other direction (direction of the arc axis) (a plurality of X marks).
are doing. That is, in the arc direction row (longitudinal direction) of the image transmission body 1E, the cross section of the pyramidal core 2 gradually increases from one side to the other side, and the focal point S of the axial center is gathered at one point. However, such columns are arranged in parallel to the axial direction (horizontal direction) of the arc, and the image can be enlarged / reduced in the arc direction, but the magnification becomes equal in the axial direction. The image input surface and the image forming surface of the image transmission body 1E can also be formed flat.

FIG. 13 shows a step of punching the conical hole 10 by the punching means 9 in the method of manufacturing the image transmission body 1E, and the positions of the two screens 22 can be freely adjusted with respect to the transmission material 8. The laser beam 9 is arranged and narrowed and guided in two steps. Even if the laser beam 9 is thick, it is possible to easily perforate a hole having a diameter of several tens of microns, and the sectional shape of the hole. Various types can be formed. The image transmission body 1E may be the optical fiber 4 instead of the core 2, and can be formed by the manufacturing method of the image transmission bodies 1A to 1D of the first embodiment and the fourth embodiment. However,
In the second and third embodiments, it is necessary to move the punching means 9 in the horizontal direction (vertical to the paper surface).

In the sixth embodiment shown in FIG. 14, the image transmission body 1F is a conventionally known image transmission body in which a large number of optical fibers 4 are arranged vertically and horizontally to form a fiber bundle having a substantially rectangular cross section. The transmission image can be enlarged or reduced by using a fiber bundle used for an endoscope or the like. That is, when the end surface of the fiber bundle in which a large number of optical fibers 4 are bound is inclined with respect to the longitudinal direction of the optical fibers 4 and cut, the cross section is enlarged in the cutting direction according to the inclination angle. For example, angle 6
When cut at 0 degrees, the cut surface has twice the dimension in one direction, and when cut at 45 degrees, the cut surface has 1.45 times. In this way, the end face of the first equal-magnification image transmission body 5 is cut with an inclination to the longitudinal direction of the optical fiber 4 to form an enlarged cross section, and the inclined enlarged cross section and one end face have substantially the same area and correspond to each other. The second of the fiber bundles having the substantially rectangular cross section having the optical fiber 4 at the position
When the equal-magnification image transmission body 6 is connected at a right angle and the other end surface of the second equal-magnification image transmission body 6 is inclined with respect to the longitudinal direction of the optical fiber 4 and cut to form a large enlarged section, It is possible to obtain a cross section that is enlarged in two directions in the vertical and horizontal directions with respect to the cross section orthogonal to the normal-size image transmitter 5, and the image input to the end face of the first equal-magnification image transmitter 5 is the second equal-magnification image transmission. 2x on the tilted imaging plane of body 6,
It is possible to output with an area expanded to 1.45 times. In this case, a large number of optical fibers 4 arranged vertically and horizontally in the fiber bundle
Since the spacing is enlarged in the cutting direction, as shown in 1G in FIG. 15, the arrangement of the optical fibers 4 is previously densely arranged in one of the vertical and horizontal directions and roughly arranged in the other, and the optical fibers are formed in the inclined cross section. Four
May be evenly spaced vertically and horizontally. Note that FIG.
In the figure, V is a right-angled cross section of the first equal-magnification image transmission body 5, and W is an inclined cross section.

In the first embodiment of the image transmission apparatus shown in FIG. 16, reference numeral 36A is an image transmission apparatus used for visually recognizing the outside of a vehicle such as an automobile, and the image forming portion provided on the operation panel is made of plastic or rubber. The large / small image transmitters 1a, 1b and the face plate 21 are arranged and supported in a holder 37 made of an elastic material, and the small spacing surface of the small image transmitter 1b is formed into a spherical surface to transmit a long-size equal-magnification image. It is spherically connected to the spherical end surface of the body 14. The holder 37 is further inserted into and supported by a support body 38, and a frame cover 39 detachably attached to the front portion of the support body 38 prevents the holder 37 and the face plate 21 from coming off. As shown in FIG. 17 showing an example of the manufacturing method thereof, the long-size same-magnification image transmission body 14 is formed into a sheet by arranging a large number of optical fibers 4 in one row, and a large number of the sheet-shaped optical fibers 4 are polymerized. Then, the optical fibers 4 are formed into a fiber bundle having a rectangular cross section in which the optical fibers 4 are arranged vertically and horizontally.
The periphery of the fiber bundle is covered with a cover material 40 formed of a flexible material such as plastic or rubber, and a reinforcing cord 41 formed of plastic, steel or the like is embedded in the cover material 40, It is formed into a durable optical fiber cord which is bendable and in which the optical fiber 4 is not cut even when bent. A flange 40a is formed on the outer peripheral portion of the cover material 40 at the end of the long-size equal-magnification image transmission body 14, and a halved spherical surface receiving member 44 sandwiches the flange 40a to form a long-size equal-magnification image transmission. It is fixed to the body 14. The halved spherical surface receiving member 44 is connected with a bolt,
The support 38 and the pressing member 45 fixed to the support 38 are pivotally supported. The support body 38 is provided with a plurality of position adjusting bolts 46 and 47, which are respectively screwed in the vertical and horizontal directions from the outer peripheral surface, corresponding to the large and small image transmission bodies 1a and 1b. These position adjusting bolts 46, 47 are in contact with the outer peripheral surface of the holder 37, and by moving back and forth, the large / small image transmission bodies 1a, 1b.
The vertical and horizontal positions of the image transmission medium 1b and the small-size image transmission medium 14 can be adjusted, and the cores 2 can be aligned with each other. In addition, the pressing member 45 is provided with a plurality of angle adjusting bolts 48 that come into contact with the spherical surface receiving member 44, so that the angle of the long-size equal-magnification image transmitting member 14 with respect to the small image transmitting member 1b can be finely adjusted. The tip of the long-size equal-magnification image transmission body 14 is connected to the outside visual recognition means 17. The outer visual recognizing means 17 is mounted so as to be directed to the outside of the automobile. Reference numeral 51 denotes a light introducing body having a through hole 51a having a U-shape (or an L shape) in a front view, an annular projection 52 having a semicircular cross section in the center, and reflecting mirrors 53, 54 at the corners of the through hole 51a. Is attached to the through hole 51a.
An objective concave lens 55 is provided at one open end, and the long-magnification image transmission body 14 is connected to the other open end. 56 is a metal plate that constitutes the bonnet or the door 62.
The insertion part 57 of the mounting body 57 is inserted into the hole 6 from the outer surface side of the sheet metal 56, and the stopper 58 is screwed to the insertion part portion on the inner surface side thereof to fix them to the sheet metal 56. A stop cap 59 can be screwed onto the outer end of 57. The mounting body 57 and the stopper cap 5
9 has annular recesses 57a and 59a that fit into the annular projection 52 of the light introducing member 51. The annular projection 52 is fitted into the annular recess 57a and the stopper cap 59 is screwed into the annular recess 59a. By fitting, the light introducing member 51 becomes the sheet metal 5
6 will be mounted so that the direction can be adjusted in the left / right and up / down directions. The connection between the other open end of the light introducing member 51 and the long-size equal-magnification image transmitter 14 is performed by connecting the flanges 51b, 4 to the outer peripheral surfaces of both members.
0b is formed, and the screw cap 60 is screwed to the flange 51b while engaging the flange 40b. When arranging one open end of the through hole 51a of the light introducing member 51 of the outside visual recognition means 17 rearward, as shown in FIG. 18, the left and right upper positions (17A) of the bonnet 61 forming the outer surface of the vehicle 15 or Outer position of door 62 (17
B), which is attached to the rear end of the roof 63 at a substantially central rearward position (17C) in the left-right direction and functions as a rearview mirror and a rearview mirror for visually recognizing the rear of the vehicle 15.
When one open end of the one through hole 51a is arranged laterally, it is mounted on a front bumper or the like at a laterally lateral position (17D) and functions as a device for visually recognizing the lateral lateral direction from the front of the vehicle. Further, the position 17F directed rearward and downward to the center of the rear end of the roof 63 functions as a device for visually recognizing the vicinity of the rear bumper of the vehicle 15. The outside visual recognition means 17 (17
A, 17B, 17C, 17D, 17E), the image forming unit of the image transmission device 36A of the operation panel 16 is a left and right image forming unit (64A) corresponding to the left and right outward visual recognition means (17A or 17B). ), Roof outside visual recognition means (17C)
Corresponding to the roof imaging unit (64C) and the lateral lateral imaging unit (17D, 17E) corresponding to the lateral imaging unit (6).
4D), and a rear-down image forming unit (64F) corresponding to the rear-down outward visual recognition means (17F). The left and right image forming unit 6
4A is the inner surface of each of the left and right doors 62, and the roof imaging unit 6
4C may be arranged in the vicinity of the operation panel 16, such as the lower surface of the front portion of the roof 63.

In the second embodiment of the image transmission device 36 applied to the vehicle 15 shown in FIGS.
6B is provided with two image transmission bodies 1 and 1 and one intermediate image transmission body 18 between them in a transparent window 20 formed in a front pillar 19 supporting a roof of a vehicle 15 so as to penetrate the interior and exterior. The image transmitters 1 and 1 are arranged so that the core small-interval surface and the image forming surface A are arranged so that the core small-interval surfaces face each other. Between,
An equal-magnification intermediate image transmission body 18, which is formed by arranging substantially the same number of cores 2 as those of the image transmission bodies 1 and 1 vertically and horizontally, is arranged and connected. Face plates 21 are provided on the outer surface of the outer image transmission body 1 and the inner surface of the inner image transmission body 1, respectively. The transparent window 20 is an opening formed in the pillar 19 in a wide range above and below the height of the eyes of the driver or the height at which the pedestrian outside the vehicle can be seen from the driver. By providing the transmission device 36B, it becomes possible to visually recognize the outside world, which is a blind spot due to the pillar 19. The external visual recognition range can be expanded vertically and horizontally from the blind spot range. Further, the see-through window 20 and the image transmission device 36B can also be provided on the side pillars, the rear pillars, and the like. Reference numeral 65 indicates a windshield.

In a third embodiment of the image transmission device 36 shown in FIG. 21, this image transmission device 36C has a core small-interval surface of the image transmission body 1 connected to the surface of a display 23 such as a television. The face plate 21 is connected to the large spacing surface. In this image transmission device 36C, the screen of the display 23 can be changed to a large screen. For example,
A 26-inch screen can be changed to a 36-inch screen, or a normal screen can be changed to a horizontally long screen. By mixing a magnetic material into the image transmission body 1 or the face plate 21, static electricity or the like generated from the display 23 can be cut off. It becomes possible to do it.

A fourth example of the image transmission device 36 shown in FIGS.
In the embodiment, the image transmission device 36D divides an image on one display 23 into a plurality of images and divides the intermediate image transmission member 18 into a plurality of images.
Image transmission, and the transmitted image is formed on the image transmission body 1 forming one screen in the same number as the number of divisions, whereby the image on the display 23 can be magnified several times and an intermediate image transmission body can be formed. 18 can be made thin. That is, a plurality of the image transmission bodies 1A are arranged adjacent to each other so that the core large-interval surfaces form extension surfaces (plane or arc-shaped screen) with each other.
7 is formed, and one end surface of an intermediate image transmission body 18 formed by vertically and horizontally forming the same number of cores 2 as the number of cores 2 of the image transmission body 1A is connected to the small-interval surface of each image transmission body 1A. , The plurality of intermediate image transmitters 18 are bound together and connected to the small-interval surface of the image-side image transmitter 1A having the same number of cores 2 as all the cores 2, and the image-side image transmitter 1A is connected. The core large spacing surface is connected to the surface of the display 23. The intermediate image transmitter 1
No. 8 uses a first equal-magnification image transmission body 5 whose one end face is cut at 45 degrees, for example, and the 45-degree end face of the first equal-magnification image transmission body 5 is used as the core small spacing surface of the image transmission body 1A. The two right-angle end faces of the first 1 × image transmitting body 5 are connected to the V-shaped end faces of the 2nd 1 × image transmitting body 6 having the core 2 which is twice as large as that of the first and 2 × image transmitting bodies 5. The equal-magnification image transmission body 6 is connected to the core small-interval surface of the image transmission side image transmission body 1A. The image transmission body 1A and the intermediate image transmission body 18 on the image forming side are supported by a support frame 68 or the like,
The number of divided screens may be another plural number. In addition, the large-interval surface of the core of the image transmitting body 1A and the display 23
Although the face plate 21 that fills the space between the two surfaces is provided between and, it is also possible to form the large-interval surface of the core of the image input side image transmission body 1A so as to be in close contact with the screen of the display 23.

24 and 25 show an image transmission device of the fifth embodiment and a method of manufacturing the image transmission device, and the image transmission device can be recognized as a combined image transmission device.
The face plate 71 and the long-size same-magnification image transmission body 14 are included. In FIG. 24, the image transmission body 1H has a quadrangular pyramid-shaped convex surface 72 formed on the upper surface and an acute-angled quadrangular pyramid-shaped concave surface 73 on the lower surface, and the upper quadrangular pyramid-shaped convex surface 72 is the lower surface of the face plate 71. And the lower quadrangular pyramid concave surface 7
Reference numeral 3 is in contact with the tip of the long-size equal-magnification image transmission body 14. The face plate 71 is formed by forming a quadrangular pyramid-shaped concave portion on the image-entering surface side of the face plate 22 shown in the above-described embodiment, and the long equal-magnification image transmission body 14 has a quadrangular pyramid-shaped convex tip surface. It is formed on the part. The image transmission body 1H has a vertical center with a vertical focus, and a large number of cores 2 each having a pyramid or the same thickness are radially arranged in four directions from each focus, and one end of the core 2 is opened to the lower quadrangular pyramidal recess 73. Is connected to the core 2 of the optical fiber 4 of the long-size equal-magnification image transmission body 14, and the other end is an upper quadrangular pyramid-shaped convex surface 72.
Open to the core 2 of the optical fiber 4 of the face plate 71
Connected to Therefore, the image transmitted from the long-size equal-magnification image transmission body 14 bends at a right angle and enters the image transmission body 1H, is diffused in all directions, and then bends at a right angle and enters the face plate 71 to form a long-size equal-magnification image. An image is formed on the face plate 71 by several times the number of images input to the transmission body 14. The face plate 71 and the long-size equal-magnification image transmitter 14 need only be processed at their end faces with a laser or the like, and as shown in FIG. 25, the lower quadrangular pyramidal recess 73 and the upper quadrangular pyramid are provided on both end faces of the transmitter body material 8. Convex surface 72
After processing (or before), the perforating means 9 is displaced around the transmitter material 8, or the transmitter material 8 is rotated with respect to the perforating means 9, and a large number of one-focus holes 74, In other words, radial holes are formed on one plane, and the perforating means 9 and the image transmission body 1H are moved up and down relatively to move the focal point to perforate a large number of radial holes on the other plane. Then, on the upper quadrangular pyramid-shaped convex surface 72, holes 74 whose ends are exposed vertically and horizontally at substantially equal intervals are formed, and each hole 74 is filled with the material forming the core 2 to form the image transmission body 1H.

26 and 27 show a sixth embodiment of an image transmitting apparatus and a method of manufacturing the image transmitting body, and an image transmitting body 1J.
24 has the same cross-sectional shape as the image transmission body 1H of the fifth embodiment, but is long in the direction perpendicular to the paper surface of FIG. 24 (the cross-sectional shape is the same as that of FIG. 24 at any position in the vertical direction of FIG. 27). The image transmitter 1J is divided into left and right. The long-size equal-magnification image transmission body 14 is in the form of a strip plate, the tip of which is a triangular (roof-shaped) convex surface having left and right inclined surfaces, and a pair of left and right image transmission bodies 1J are adhered to the respective left and right inclined surfaces. Left and right image transmitter 1
The lower surface of J is further formed with a concave surface having a triangular shape with an acute angle, and the V-shaped groove on the lower surface of the face plate 21 is fitted therein. Therefore, the image transmitted from the long-size equal-magnification image transmission body 14 bends at a right angle and enters the image transmission body 1J, is diffused to the left and right, and then bends at a right angle again to enter the face plate 21. Only be expanded.

FIG. 28 shows a comparative example of an image transmission body and a manufacturing method. In this image transmission body 80, a block material 81 formed of a core forming material is cut at a position indicated by a dot-dash line, and the one side to the other side. Forming a strip 82 that gradually becomes thicker,
A plurality of thin plates 83 formed of a material for forming a glad are sandwiched so that the two have the same thickness direction, and the trapezoidal column-shaped blocks 84 formed by this are further combined in a double-dot chain line in the stacking direction. It is cut at a position and formed into a strip plate 85 which gradually becomes thicker from one side to the other side, and this strip plate 85 is formed.
As in the case of 2, a large number of thin plates 83 formed of a material for forming a glad are sandwiched so as to have the same thickness direction, and are polymerized and bonded. As a result, a large number of pyramidal cores surrounded by the thin plate 83 are formed, and the axes thereof are gathered to form a quadrangular pyramid in which all the cores gradually increase in thickness from one side to the other side.
One side is gathered at small intervals and the other side is distributed at large intervals,
All cores are connected by grad. It should be noted that the small-interval surface and the large-interval surface may be finally corrected to a flat surface, an arc surface, or the like. Although the image transmission body 80 according to this comparative example has the same function as that of the above-mentioned embodiment, the manufacturing method thereof requires cutting and joining in units of micron, and the manufacturing is troublesome as compared with the above-mentioned embodiment. Therefore, the cost becomes high. Also,
As another comparative example, the image transmitter 1A.1 of the first and second embodiments is used.
As the material for the core 2 of B, a liquid having a high refractive index is used instead of using glass or synthetic resin, and the liquid is injected into the conical hole 10 to form an image plane and an image plane of the image transmission body 1. Although it is conceivable that the face plate 21 is bonded and closed, it is difficult to keep the liquid for the core closed for a long time. The present invention is not limited to the above embodiment, but can be modified in various ways. For example, the punching means 9
When the molten material forming the core 2 or the glad 3 is filled in the conical hole formed in, the lower part of the transmitter body material 8 or the main body material 11 is immersed in the molten material, and the material is formed into a pyramidal shape by utilizing a capillary phenomenon. The holes may be filled.

[0023]

According to the present invention described in detail above, all cores 2
Is formed in a conical shape that gradually increases in thickness from one side to the other side, one side is assembled at a small interval and the other side is dispersedly arranged at a large interval, and all cores 2 are connected by a glad 3, so it is extremely With a simple structure, the input image can be enlarged or reduced to form an image. The core 2 in each optical fiber 4 is formed in a pyramid shape that gradually becomes thicker from one side to the other side, one side of all the cores 2 is gathered at small intervals, and the other side is dispersedly arranged at large intervals, and Fiber 4
Since they are bonded to each other by the bonding material 7, the input image can be enlarged or reduced to form an image, and the optical fibers 4 can be reliably bonded to each other. Since the focal points of the axial centers of all the cores 2 are arranged so as to be gathered at one point, the cores 2 can be arranged at equal intervals in the vertical and horizontal directions on the small core spacing surface and the large core spacing surface of the image transmission body. Since the focal point of the core of the core 2 is displaced from a near distance to a far distance from the center of the transmission image of the image transmission body from a short distance to a long distance, the small spacing surface and the large spacing surface of the image transmission body are separated from each other. Even with a spherical surface, the cores 2 on each surface can be arranged at equal intervals in the vertical and horizontal directions. The focal points of the axial centers of the cores 2 arranged in one direction in the vertical and horizontal directions are gathered at one point, and the focal points of the cores 2 are arranged at equal intervals in the other direction, so that the image is enlarged or reduced only in one vertical and horizontal directions. can do. Since the arrangement intervals of the cores 2 in at least the large core spacing surface of the one side small spacing surface and the other core large spacing surface of the image transmission body are set to be equal intervals, normal imaging with less distortion is performed. You can The large core spacing surface of each image transmission body is a circular surface or a rectangular surface when viewed from the front and a three-dimensional shape is a flat surface, an arc surface or a spherical surface, so that the image input surface and the image forming surface can be formed into desired shapes. The small core spacing surface of each image transmission body is a circular surface or a rectangular surface when viewed from the front, and the three-dimensional shape is a flat surface, an arc surface or a spherical surface, so that the image forming surface and the image entering surface can be formed into a desired shape. . Since the end face of the fiber bundle in which a large number of optical fibers 4 are bound is inclined with respect to the longitudinal direction of the optical fibers 4 and cut to form an enlarged cross section, the core 2 has an even thickness over the entire length. Even in the case of 4, the image to be transmitted can be enlarged or reduced, or only one of the vertical and horizontal directions of the image can be enlarged or reduced.
An end face of a first equal-magnification image transmission body 5 in which a large number of optical fibers 4 in which the core 2 is covered with glads 3 are arranged vertically and horizontally to form a fiber bundle having a substantially rectangular cross section is inclined with respect to the longitudinal direction of the optical fibers 4. The second bundle of fiber bundles having a substantially rectangular cross section, which is cut and formed into an enlarged cross-section, has one end surface of the first enlarged-magnification image transmission body 5 which has substantially the same area and one corresponding optical fiber 4 in the enlarged cross-section. The same-magnification image transmitter 6 is connected at a right angle, and the second equal-magnification image transmitter 6 is connected.
The other end surface of the optical fiber 4 is inclined with respect to the longitudinal direction of the optical fiber 4 and cut to form a large enlarged cross section. Therefore, by using the optical fiber 4 having a uniform thickness, the transmission image is enlarged or reduced several times. can do. A large number of optical fibers 4 are densely arranged vertically and horizontally on one side and coarsely arranged on the other side to form a fiber bundle having a substantially rectangular cross-section, and the end faces of the fiber bundle are set with respect to the longitudinal direction and the dense direction of the optical fibers 4. Since they are inclined and connected, the transmission image can be enlarged / reduced only in one direction, and an image having an equal ratio of length and width can be input or formed even in the inclined cross section. Since the cross-sectional shape of each core 2 is formed into a circular shape or a rectangular shape, it is possible to variously select the interval, the clearance shape, etc. of the cores 2. The transmitter body material 8 is formed of the material forming the glad 3, and the perforation means 9 is provided from the outside of the transmitter body material 8 to form a pyramidal hole whose cross-section gradually increases from one surface side to the other surface side. A large number of 10 are formed vertically and horizontally with a small interval on one surface side and a large interval on the other surface side, and the material for forming the core 2 is filled in the full-pyramidal hole 10, so that image enlargement / reduction is possible. The image transmitter can be manufactured easily and inexpensively. From the outside of the block-shaped main body material 11, by means of the perforation means 9, glad pyramidal holes 12 having a cross-section gradually increasing from one side to the other side of the main body material 11 are formed at small intervals on one side and large intervals on the other side. To form a core 2 in the coated glad 3 by coating the inner peripheral surface of all the glad conical holes 12 with a material forming the glad 3 to a substantially uniform thickness. Since the filling is performed, the image transmission body in which the core 2 is uniformly coated with the glad 3 and the core 3 is coupled with the coupling body can be easily and inexpensively manufactured. From the outside of the block-shaped main body material 11, the perforation means 9 is used to form a glad pyramidal hole 12 whose cross-section gradually increases from one side to the other side of the main body material 11.
A plurality of them are formed vertically and horizontally with a small interval on one side and a large interval on the other side, and the material for forming the glad 3 is filled on the inner peripheral surface of all the glad pyramidal holes 12, and after the glad 3 is solidified. A core cone-shaped hole 10 having a cross-sectional area gradually increasing from one side to the other side is formed in the glad 3 from the outside of the main body material 11 by concentricity with each of the glad cone-shaped holes 12 by the boring means 9. Since the material for forming the core 2 is filled in the core-pyramidal hole 10 in the core 3, it is possible to easily and inexpensively manufacture the image transmission body in which the core 2 is uniformly covered with the glad 3 and the core 3 is bonded by the combination. Since the boring means 9 is a device for irradiating a laser beam, it is possible to boring a conical hole accurately and at high speed. The perforating means 9 squeezes and guides the irradiated laser beam by one or a plurality of screens 22 having a large number of holes formed in the vertical and horizontal directions, so that it is possible to easily form conical holes of various sizes and shapes simply by changing the screen 22. Can be pierced. Since the internal gas is sucked from one of the conical holes and the material filling the conical hole is pressed from the other, the conical hole can be reliably filled with the material. Since the material that fills the conical hole is filled from one side of the conical hole using the capillary phenomenon, it is possible to reliably fill the material into the conical hole without a special device such as a suction device. Therefore, the image transmitter can be manufactured at low cost. Since the material is held on the movable carrier 13 at intervals in the moving direction, and the carrier 13 is intermittently moved to convey the material to the working position, the image transmitter can be continuously produced,
Mass production is possible. A plurality of image transmitters having substantially the same number of cores 2 having different sizes are provided, and the small gap surface of the large image transmitter having substantially the same area as that of the large gap surface of the small image transmitter is contacted. And since core 2 comrades are connected,
The combination image transmitter can remarkably increase the enlargement / reduction ratio of the image. Long-length equal-magnification image transmission of a fiber bundle formed by arranging optical fibers 4 on the small-interval surface or the large-interval surface of the image transmission body at substantially the same number as the cores 2 of the image transmission body and at substantially corresponding positions. Since the body 14 is connected, the image can be magnified / reduced and optical transmission can be performed to a distant place by combining the image transmission bodies. A face plate 21 formed by juxtaposing the cores 2 in parallel with each other at substantially the same number as the number of the cores 2 of the image transmission body and at substantially corresponding positions is connected to the small-interval surface or the large-interval surface of the image transmission body. Therefore, the shape of each surface of the image transmission body, the deflection of the image, and the like can be corrected.
The image transmission body is arranged at the operation panel 16 inside the vehicle 15 whose core large-interval surface is visible to the driver or in the vicinity thereof,
Since one end surface of the long-size equal-magnification image transmission body 14 is connected to the core small-interval surface, and the other end surface of the long-size equal-magnification image transmission body 14 is connected to the outside visual recognition means 17 fixed to the vehicle 15. The outside scenery taken in by the outside visual recognition means 17 can be taken into the inside of the vehicle 15 and can be viewed in an enlarged manner without using an optical lens or the like. The image transmitter is the door 6 of the vehicle 15.
2 is arranged on the inner surface and the outer visual recognizing means 17 is arranged on the outer surface of the door 62, so that the rear view taken by the outer visual recognizing means 17 can be enlarged and visually recognized inside the vehicle 15,
By using it instead of the conventional door mirror, the rear view can be viewed without being affected by the fogging of the window glass. A pair of image transmission members, one having a large core spacing surface as an image plane and one having a small core spacing surface as an image plane, are arranged so that the small core spacing surfaces face each other, and the two small core spacing surfaces are arranged between the two small core spacing surfaces. In addition, since the intermediate image transmission body 18 formed by arranging substantially the same number of cores 2 as those of these image transmission bodies vertically and horizontally is arranged and connected, the intermediate image transmission body 18 is made thin to form a large image. Optical transmission is possible. Two image carriers and one intermediate image carrier 18 between them
Are provided in the see-through window 20 formed to penetrate the interior and exterior of the pillar 19 that supports the roof of the vehicle 15.
The blind spot by the pillar 19 of No. 5 is eliminated and the outside can be visually recognized. Since the small core spacing surface or the large core spacing surface of the image transmission body is connected to the surface of the display 23, the image on the display 23 can be enlarged or reduced. A plurality of image transmission bodies are adjacent to each other so that the large core spacing surfaces form extension surfaces with each other, and the same number of cores 2 as the image transmission body cores 2 are arranged vertically and horizontally on the small core spacing surface of each image transmission body. A core of an image transmission side image transmission body having one end surface of an intermediate image transmission body 18 formed side by side connected, and bundling the plurality of intermediate image transmission bodies 18 and having substantially the same number of cores 2 as all cores 2. Since it is connected to a small spacing surface and the core large spacing surface of the image input side image transmission body is connected to the surface of the display 23, an image of one small display 23 is enlarged several times to form an image. It is possible to manufacture a magnified display easily and inexpensively. Since the intermediate image transmission body 18 is formed by the image transmission body obtained by obliquely cutting the end of the fiber bundle of the optical fiber 4, the core 2 can be transmitted to the pyramidal image transmission body while enlarging the image. In addition, it is possible to join the two while adding an angle, making it possible to make a magnified display compact.

[Brief description of drawings]

FIG. 1 is a sectional side view of a first embodiment of an image transmission body of the present invention.

FIG. 2 is a view taken in the direction of the arrow X in FIG. 1;

FIG. 3 is an explanatory diagram showing a focus of a core of the same image transmission body.

FIG. 4 is a cross-sectional view showing the method of manufacturing the image transmission body and the apparatus therefor according to the first embodiment.

FIG. 5 is an explanatory diagram showing a continuous manufacturing method of an image transmission body and an apparatus therefor according to the first embodiment.

FIG. 6 is an explanatory diagram for explaining the focus of the image transmission body and the core thereof according to the second embodiment.

FIG. 7 is a sectional side view of the image transmission body of the third embodiment.

FIG. 8 is a view taken along the line YY of FIG.

FIG. 9 is an explanatory diagram showing a continuous manufacturing method of an image transmission body and an apparatus therefor according to a third embodiment.

FIG. 10 is a sectional perspective view showing an image transmission body and a method for manufacturing the same according to a fourth embodiment.

FIG. 11 is a sectional perspective view showing an image transmission body of a fifth embodiment.

FIG. 12 is a front view of the image transmission body of the fifth embodiment.

FIG. 13 is a perspective view showing the method of manufacturing the image transmission body of the fifth embodiment.

FIG. 14 is a perspective explanatory view of an image transmission body of a sixth embodiment.

FIG. 15 is a cross-sectional view showing a modified example of the optical fiber bundle.

FIG. 16 is a sectional view showing a first embodiment of the image transmission device.

FIG. 17 is an explanatory diagram showing an example of a fiber bundle used for a long-size equal-magnification image transmission body.

FIG. 18 is a perspective explanatory view showing a specific arrangement of the image transmission device of the first embodiment.

FIG. 19 is a sectional plan view showing a second embodiment of the image transmission device.

20 is a view on arrow Z of FIG. 19. FIG.

FIG. 21 is a side view showing a third embodiment of the image transmission device.

FIG. 22 is a side view showing a fourth embodiment of the image transmission device.

FIG. 23 is a plan view showing the fourth embodiment.

FIG. 24 is a sectional view showing a fifth embodiment of the image transmission device.

FIG. 25 is a plan view of the fifth embodiment with a face plate removed.

FIG. 26 is an exploded perspective view showing a sixth embodiment of the image transmission device.

FIG. 27 is a plan view of the sixth embodiment with the face plate removed.

FIG. 28 is an explanatory diagram showing a comparative example of the image transmission body and the manufacturing method thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Image transmission body 2 Core 3 Glad 4 Optical fiber 5 1st same-magnification image transmission body 6 2nd same-magnification image transmission body 7 Coupling material 8 Transmission body material 9 Drilling means (laser device) 10 Conical hole 11 Body material 12 Glad Conical hole 13 Carrier 14 Long-size same-magnification image transmitter 15 Vehicle 16 Operation panel 17 Outside visual recognition means 18 Intermediate image transmitter 19 Pillar 20 Perspective window 21 Face plate 22 Screen 23 Display

Claims (30)

[Claims] 1. An image transmission body comprising a plurality of light-transmitting cores (2) arranged vertically and horizontally at intervals, and an outer peripheral surface of all the cores (2) covered with a glad (3) for confining light. In the above, all the cores (2) are formed in a pyramid shape that gradually becomes thicker from one side to the other side, and the one side is gathered at a small interval and the other side is dispersedly arranged at a large interval so that all the cores (2) are An image transmitter characterized in that they are connected by a glad (3). 2. An optical fiber (4) is formed by coating an outer peripheral surface of a core (2) for propagating light with a glad (3) for confining light, and a large number of all optical fibers (4) are arranged vertically and horizontally. In the image transmitting body, the core (2) in each of the optical fibers (4) is formed in a pyramid shape that gradually increases from one side to the other side, and one side of all the optical fibers (4) is gathered at a small interval. In addition, the image transmission body is characterized in that the other side is dispersedly arranged at large intervals and is coupled to each other by a coupling material (7). 3. The image transmission body according to claim 1, wherein the focal points of the axial centers of all the cores (2) are arranged so as to be gathered at one point. 4. The focus of the axial center of the core (2) is displaced from a near distance to a far distance from a center near the center of the transmitted image of the image transmission body to a far distance. The image transmitter described in 1. 5. The cores (2) arranged vertically and horizontally in a unidirectional array have their focal points gathered at one point, and the focal points of the cores (2) are arranged at equal intervals in the other direction. The image transmission body according to claim 1 or 2. 6. The arrangement interval of the cores (2) is set to be equal in at least the large core spacing surface of the one side small core spacing surface and the other side large core spacing surface of the image transmission body. The image transmission body according to any one of claims 1 to 5, which is characterized in that. 7. The large core spacing surface of each image transmission body is a circular surface or a rectangular surface when viewed from the front, and a three-dimensional shape is a flat surface, an arc surface or a spherical surface. The image transmission body according to Crab. 8. The small core spacing surface of each image transmission body is a circular surface or a rectangular surface in a front view, and a three-dimensional shape is a flat surface, an arc surface or a spherical surface. The image transmission body according to Crab. 9. An image transmission body in which a large number of optical fibers (4) in which a core (2) is covered with a glad (3) are arranged vertically and horizontally to form a fiber bundle having a substantially rectangular cross section. An image transmission body, characterized in that the end face is inclined with respect to the longitudinal direction of the optical fiber (4) and cut to form an enlarged cross section. 10. A first equal-magnification image transmission body (5) in which a large number of optical fibers (4) in which a core (2) is covered with a glad (3) are arranged vertically and horizontally to form a fiber bundle having a substantially rectangular cross section. The end face of the optical fiber (4) is inclined and cut to form an enlarged cross section, and the inclined enlarged cross section of the first equal-magnification image transmission body (5) has one end surface having substantially the same area. Further, the second equal-magnification image transmission body (6) of a fiber bundle having a substantially rectangular cross section having the corresponding optical fiber (4) is connected at a right angle, and the other end surface of the second equal-magnification image transmission body (6) is provided with an optical fiber. (4) An image transmission body, characterized in that the image transmission body is cut to be inclined with respect to the longitudinal direction and formed into a large enlarged cross section. 11. A large number of optical fibers (4) are densely arranged in one of the vertical and horizontal directions and coarsely arranged in the other to form a fiber bundle having a substantially rectangular cross section, and the end faces of the fiber bundle are formed of the optical fibers (4). The image transmission body according to claim 9 or 10, wherein the image transmission body is inclined and connected with respect to the longitudinal direction and the dense direction. 12. The image transmission body according to claim 1, wherein each core (2) has a circular or rectangular cross-sectional shape. 13. A transmitter material (8) is formed of a material forming a glad (3), and a perforating means (9) is provided from the outside of the transmitter material (8) to one side of the transmitter material (8). To the other surface side, a large number of conical holes (10) having a cross-section gradually increasing in size are formed vertically and horizontally at small intervals on one surface side and at large intervals on the other surface side. ) Is filled with a material for forming the core (2). 14. A glad-pyramidal hole (1) having a cross-section gradually increasing from one side to the other side of the block-shaped main body material (11) from the outside by means of a perforating means (9).
2) are formed vertically and horizontally so that one side has a small interval and the other side has a large interval, and the inner peripheral surface of all the glad pyramidal holes (12) is substantially made of a material forming the glad (3). A method for manufacturing an image transmission body, which is characterized in that it is coated to a uniform thickness, and a material for forming a core (2) is filled in the coated glad (3). 15. A glad-pyramidal hole (1) having a cross-sectional area gradually increasing from one side of the main body material (11) to the other side by means of perforating means (9) from the outside of the block-shaped main body material (11).
A large number of 2) are formed vertically and horizontally so that one side has a small interval and the other side has a large interval, and the inner peripheral surface of all the glad cone holes (12) is filled with a material forming the glad (3). Then, after solidification of the glad (3), the core is concentrically formed from the outside of the main body material (11) by the perforating means (9) to each of the glad pyramidal holes (12) and the cross-section gradually becomes larger from one side to the other side. Image transmission, characterized in that a conical hole (10) is formed in the glad (3) and the core conical hole (10) in the glad (3) is filled with the material forming the core (2). Body manufacturing method. 16. The method for manufacturing an image transmission body according to claim 13, wherein the perforating means (9) is a device for irradiating a laser beam. 17. The image transmission device according to claim 16, wherein the perforating means (9) narrows and guides the radiated laser beam by a screen (22) having a large number of vertical and horizontal holes. Method. 18. The internal gas is sucked from one of the conical holes,
The method for manufacturing an image transmission body according to any one of claims 13 to 15, characterized in that a material for filling the conical holes is press-fitted from the other side. 19. The method of manufacturing an image transmission body according to claim 13, wherein the material for filling the conical hole is filled from one of the conical holes by utilizing a capillary phenomenon. . 20. The material is held on a movable carrier (13) at intervals in the moving direction, and the material is conveyed to a work position by intermittently moving the carrier (13). The method for manufacturing the image transmission body according to claim 13. 21. The image transmission body according to any one of claims 1 to 9, wherein a plurality of image transmission bodies having substantially the same number of cores (2) of different sizes are provided. A combination image transmission body, characterized in that the core (2) is connected to the space plane by contacting the core small space plane of the large image transmission body having substantially the same area as that of the space plane. 22. The small-interval surface or the large-interval surface of the image transmission body according to claim 1, the number of which is substantially the same as that of the cores (2) of the image transmission body, and the number of which substantially corresponds. A combined image transmission body, characterized in that a long-length equal-magnification image transmission body (14) of a fiber bundle formed by arranging an optical fiber (4) at a position is connected. 23. On the small core spacing surface or the large core spacing surface of the image transmission body according to any one of claims 1 to 10, the number is substantially the same as the number of the cores (2) of this image transmission body, and substantially corresponding positions. A combined image transmission body characterized in that a face plate (21) formed by arranging a core (2) in parallel with an axis is connected. 24. An operation panel (16) inside a vehicle (15) or its vicinity, in which the driver can visually recognize a large core spacing surface of the image transmission body according to any one of claims 1 to 10 and 21 to 23. Is disposed at a position, one end surface of the long-size equal-magnification image transmission body (14) is connected to the core small-interval surface, and the other end surface of the long-size equal-magnification image transmission body (14) is fixed to the vehicle (15). An image transmission device, characterized in that the image transmission device is connected to outside visual recognition means (17). 25. A door (6) for a vehicle (15) is provided with an image transmitter.
2) It is arranged on the inner surface and the outer visual recognizing means (17) is attached to the door (6
2) The image transmission device according to claim 24, wherein the image transmission device is arranged on the outer surface. 26. The image transmission body according to any one of claims 1 to 10, 21 and 22, wherein the large-interval surface of the core is the image-entering surface (B) and the small-interval surface of the core is the image-receiving surface (B). ) Is arranged so that the small core spacing surfaces face each other, and between the two core small spacing surfaces, the same number of cores (2) as the cores (2) of these image transmission bodies are arranged vertically and horizontally. An image transmission device characterized in that an intermediate image transmission body (18) formed side by side is arranged and connected. 27. A see-through window (2) formed so that the two image transmitters and one intermediate image transmitter (18) between them are formed in a pillar (19) supporting a roof of a vehicle (15) so as to penetrate indoors and outdoors. The image transmission device according to claim 26, which is provided in 20). 28. The small core spacing surface or the large core spacing surface of the image transmission body according to any one of claims 1 to 10, 21 and 22 is connected to a surface of a display (23). Image transmission device. 29. A plurality of the image transmission bodies according to claim 1, which are adjacent to each other so that the large core spacing surfaces form extension surfaces with each other, and are arranged on the small core spacing surface of each image transmission body. A plurality of intermediate image transmitters (18) are formed by connecting one end faces of an intermediate image transmitter (18) formed by arranging substantially the same number of cores (2) as the image transmitters vertically and horizontally. Are connected to the small-interval surface of the image-side image transmission body having substantially the same number of cores (2) as the total number of cores (2), and the large-interval surface of the image-side image transmission body is displayed on the display ( 23) An image transmission device characterized by being connected to the surface of 23). 30. An image transmission device according to claim 29, characterized in that the intermediate image transmission body (18) is formed by the image transmission body according to any one of claims 10 to 12.