JP2003161856A - Optical wiring circuit, optical wiring circuit laminate and photoelectric wiring apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical wiring circuit which can be connected to an arbitrary circuit board, can reduce in the area of an optical wiring part and can be wholly miniaturized and an optical wiring circuit laminate with a plurality of the optical wiring circuits laminated. <P>SOLUTION: A photoelectric wiring apparatus 10 comprises the optical wiring circuit stacking element 12 and electric wiring boards 14. The optical wiring circuit stacking element 12 has a plurality of the stacked optical wiring circuits 16. The optical wiring circuit comprises a translucent medium 20, a reflection part 22 and an optical fiber 24. The reflection part 22 is provided on a first end face 20a of the translucent medium 20. One end 24a of the optical fiber 24 is connected to a second end face 20b opposite to the first end face 20a. The optical fiber 24 upwardly extends from the end 24a through a bend 24b. Another end 24c is drawn on an upper face of a support board 18 parallel to a third end face 20c and a fourth end face of the translucent medium 20. A light outputted from the arbitrary electric wiring board 14 enters into the translucent medium 20, is reflected by the reflection part 22 and outputted to other electric wiring boards 14 through other optical fibers 24. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of an optical wiring circuit used in, for example, an optical bus system.

[0002]

2. Description of the Related Art Electric bus circuits are commonly used to connect multiple microprocessors and memories. However, in the electric bus circuit, there is a problem that the processing speed of the system is limited due to the signal delay caused by the capacitance between the connection wirings and the resistance of the connection wirings, and electromagnetic noise is generated when trying to increase the density of the parallel bus connection wirings. However, it is becoming difficult to deal with high speed. Therefore, an optical interconnection technique has been conventionally proposed in which electric wiring is replaced with optical wiring to increase the bus speed.

In Japanese Patent Publication No. 6-22351, two sets of light emitting / receiving devices are arranged on both sides of each circuit board, and light is emitted on an adjacent circuit board incorporated in a system frame.
/ A spatially optically coupled light receiving device is disclosed. However, in the disclosed invention, since the optical / electrical conversion is required for each communication between the adjacent circuit boards, the cost is high and the delay amount is large. Further, since the light is propagated in the free space, the positioning of the optical / electrical element is strict, and it is vulnerable to crosstalk and dust.

Japanese Patent Publication No. 6-93051 discloses a plate which has two parallel surfaces and is opposed to a light source. A diffraction grating and a reflection element are arranged on the two surfaces of the plate. Further, there is disclosed a configuration in which an optical path is formed by utilizing a free space composed of a reflection element, and circuits are optically connected via this optical path. However, in the disclosed invention, since the purpose is only one-to-one communication, the light emitted from one point is connected to only one other fixed point, and the point-to-multipoint or multipoint Multipoint communication is not possible.

Japanese Patent Laid-Open No. 2000-
Japanese Patent No. 329962 shows a structure in which a sheet-like transparent medium is provided on a support substrate, and a plurality of optical fibers are connected to both sides of the transparent medium. However, in this disclosed invention, since the optical fibers are connected to both sides of the transparent medium, one for input and the other for output, the connectable circuit board is limited.

Although the technical field is different from that of the above-mentioned conventional example, in Japanese Unexamined Patent Publication No. 9-265019, an optical signal input / output terminal is used as an optical signal distributor used in an optical transmission type measuring system. It is disclosed that a plurality of optical input / output units, an optical circuit unit that reflects and branches an optical signal, and a plurality of optical fibers are housed in a housing. The optical circuit part
An optical circuit block having an incident surface connected to an optical fiber is provided, and a reflecting portion is provided on a surface opposite to the incident surface of the optical circuit block. The optical signal input to the optical circuit section from any one optical input / output section via the optical fiber is
The light is reflected by the optical circuit section, and can be evenly distributed and output from another optical input / output section via another optical fiber. However, in this conventional example, the input / output terminal is arranged on the surface of the housing parallel to the incident surface of the optical circuit block, and the output end of the optical fiber connected to the input / output terminal is incident on the optical circuit block. It is fanned out and pulled out to a plane parallel to the plane. Therefore, in order to open the output ends of a plurality of optical fibers by a predetermined pitch or more, it is necessary to bend the optical fibers once outward and then inward again, so the area of the optical wiring part must be increased. There was a problem that it did not exist.

In order to solve the above problems, the present invention can be connected to an arbitrary circuit board, can reduce the area of the optical wiring portion, and can thereby downsize the entire optical wiring circuit. It is an object of the present invention to provide an optical wiring circuit laminate in which a plurality of the optical wiring circuits are laminated.

[Means for Solving the Problems]

In order to solve the above problems, the first aspect of the present invention
The feature of is that a translucent medium having a first end face and a second end face which face each other and the first end face, and a reflection portion provided on the first end face of the translucent medium, A plurality of optical fibers having one end optically connected to the second end face of the transparent medium and the other end extending from the one end, and the other end of the optical fiber is The optical wiring circuit is drawn out toward a surface that is not parallel to the first end surface. Therefore, the light input from the other end of any optical fiber enters the transparent medium via the optical fiber,
The light is reflected by the reflection part and output through another optical fiber. Since the other end of the optical fiber is drawn out to a surface that is not parallel to the first end surface of the transparent medium, the area of the wiring portion can be reduced.

The translucent medium may be a block-shaped medium or a column-shaped medium, but a sheet-shaped thin rectangular parallelepiped medium is preferable. In this case, the other end of the optical fiber
A third end face or a fourth end face connecting the first end face and the second end face.
It is preferable to pull out toward a surface parallel to the end surface of the. The other ends of all the optical fibers may be drawn out toward one surface, or the optical fibers may be divided into two and drawn out toward the third end surface side and the fourth end surface side. In addition, it is preferable from the viewpoint of fixability that the translucent medium, the reflecting portion, and the optical fiber are wired to a supporting substrate in which a corresponding accommodation groove is formed. To further improve the fixability, a fixing member for fixing a plurality of optical fibers together may be provided at one end or the other end or both ends of the optical fiber, or the translucent medium or the optical fiber is fixed to the support substrate. A pressing member may be provided.

Generally, an optical fiber has a large optical loss when bent to a radius of curvature of a predetermined radius or less, and in order to reduce the optical loss, it is necessary to wire the optical fiber with a radius of a radius or more. For example, in the case of the currently known φ1 mm optical fiber, it is necessary to wire with a radius of 15 mm or more in order to suppress the bending loss to 0.2 dB or less. In the present invention, the other end of the optical fiber is drawn out toward a surface that is not parallel to the first end surface of the transparent medium. Therefore, when it is necessary to bend the optical fiber, it is possible to pull it out by providing at most one bending portion,
Even if the radius of curvature of the bent portion is a predetermined value or more, for example, 15 mm or more, the area of the wiring portion can be small. In particular, when connecting to a device such as a hard disk via an electric wiring board or an optical connector on which a large number of electronic components are mounted, the other end of the optical fiber requires a pitch width of 10 mm or more, and if the number of wirings increases, Although the width is increased, the present invention is suitable for such an application because the area of the optical wiring portion can be reduced.

A second feature of the present invention is that the first end face and the second end face are opposed to each other, and the third end face and the fourth end face are provided between the first end face and the second end face. A sheet-shaped light-transmitting medium having an end face of the light-transmitting medium, a reflecting portion provided on the first end-face of the light-transmitting medium, one end optically connected to the second end-face of the light-transmitting medium, and A plurality of optical fibers having the other end extending from the one end, and the other end of the optical fiber being drawn out toward a surface that is not parallel to the first end surface of the transparent medium. There is a plurality of circuits, and this optical wiring circuit is an optical wiring circuit laminated body in which a plurality of optical wiring circuits are laminated along the sheet side surface direction of the transparent medium. In this way, in order to have a structure in which a plurality of optical wiring circuits are stacked,
Although it is compact, it can be connected to an electric wiring board having a plurality of bits and other optical wiring circuits.

A third feature of the present invention is that the first end face and the second end face are opposed to each other, and the third end face and the fourth end face provided between the first end face and the second end face are opposed to each other. A sheet-shaped light-transmitting medium having an end face of the light-transmitting medium, a reflecting portion provided on the first end-face of the light-transmitting medium, one end optically connected to the second end-face of the light-transmitting medium, and A plurality of optical fibers having the other end extending from the one end, and the other end of the optical fiber being drawn out toward a surface that is not parallel to the first end surface of the transparent medium. A plurality of circuits, the optical wiring circuit has a plurality of optical wiring circuit laminated body laminated along the sheet side surface direction of the translucent medium, and a plurality of electric wiring board having a photoelectric conversion element, An opto-electrical wiring in which the opto-electrical conversion element of this electric wiring board is connected to the other end of the optical fiber It is in the location. Therefore, the light is reflected by the reflecting portion of the optical wiring circuit laminated body, so that it is possible to transmit / receive to / from another electric wiring board regardless of which position one electric wiring board is connected. Further, since the electric wiring board is connected on one surface of the optical wiring circuit, the structure as an opto-electric wiring device is simplified, the delay amount is small, and it can be made resistant to crosstalk and dust. Furthermore, by combining the above-mentioned optical wiring circuit laminate and the electric wiring board, it is possible to have more connection points.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. 1 to 4, the first of the present invention
The optical / electrical wiring device 10 is composed of an optical / wiring circuit laminate 12 and a plurality of electric wiring boards 14. The optical wiring circuit laminated body 12 includes a plurality of sheet-shaped optical wiring circuits 16 (8 in this embodiment).
It is configured by stacking the optical wiring circuit 16 in the sheet side surface direction. Electric wiring board 14
Has a CPU and a memory, and is optically connected to the optical wiring circuit 16.

The optical wiring circuit 16 includes a supporting substrate 18, a transparent medium 20 wired on the supporting substrate 18, and a reflecting portion 22.
And a plurality of optical fibers (8 in this embodiment)
With 24. The translucent medium 20 is made of, for example, a plastic material such as polymethylmethacrylate, polycarbonate, or amorphous polyolefin, or inorganic glass. In the case of a plastic material, it is formed by injection molding. By injection molding, the manufacturing accuracy can be improved. Further, by making the support substrate 18 opaque, it is possible to reduce light leakage to other support substrates and reduce crosstalk between bits.

On one surface of the support substrate 18, a translucent medium accommodating groove 26 for accommodating the translucent medium 20, a reflective portion accommodating groove 28 for accommodating the reflective portion 22, and an optical fiber 24 for accommodating light. A fiber accommodating groove 30 is formed. The reflecting portion accommodation groove 28 is formed to be slightly wider and deeper than the transparent medium accommodation groove 26 at one end surface of the transparent medium accommodation groove 26. Further, the optical fiber accommodation groove 30 is the reflection portion accommodation groove 28.
Is formed on the opposite side of the transparent medium containing groove 26, is branched corresponding to the number of the optical fibers 24, and faces the upper surface of the support substrate 18.

The translucent medium 20 is formed into a rectangular parallelepiped like the support substrate 18, and has a first end face 20a and a second end face 20b facing each other in the longitudinal direction, and the first end face 20a.
A third end surface 20c and a fourth end surface 20d which connect the end surface 20a and the second end surface 20b. The first end surface 20a and the second end surface 20b of the transparent medium 20 are parallel to the side surface of the support substrate 18, and the third end surface 20c and the fourth end surface 20c.
20d is parallel to the upper and lower surfaces of the support substrate 18.

The reflecting portion 22 is constructed as a reflecting / diffusing plate having a function of reflecting light and a function of diffusing light. For example, an epoxy layer is formed on a resin base material such as acryl, polycarbonate, polyester or the like by ultraviolet rays. LSD (Light Shaping Diffus) cured to form a pattern
ers) is provided with a reflecting surface such as aluminum in the diffusion part. The reflective portion 22 is accommodated in the reflective portion accommodating groove 28 of the support substrate 18, whereby the translucent medium 2
0 to the first end face 20a of the transparent medium 20
It is closely fixed with. However, the reflecting portion 22 may be formed integrally with the translucent medium 20 via the adhesive or the like on the translucent medium 20.

The optical fiber 24 is accommodated in the optical fiber accommodating groove 30 of the support substrate 18, so that one end 24a of the optical fiber 24 has the second end surface 2 of the transparent medium 20.
0b is abutted and optically connected. The connecting portion is fixed as a bundle by one end fixing member 32. The optical fiber 24 has a bent portion 24b bent upward with a predetermined radius of curvature, and the other end 24c extending from the one end 24a of the optical fiber 24 through the bent portion 24b has the support substrate as described above. It faces the upper surface of 18. The other end 24c of the optical fiber 24 is inserted and fixed in the other end fixing member 34 provided on the upper surface of the support substrate 18, and further connected to the photoelectric conversion element of the electric wiring substrate 14 as described later. ing. In this way, all the other ends 24c of the optical fibers 24 are not parallel to the second end face 20b of the translucent medium 20, that is, are drawn out to a plane parallel to the third end face 20c and the fourth end face 20d. It is what has been.

As shown in FIG. 4, the electric wiring board 14 is
It has a board main body 36 and a connector 38 provided at one end of the board main body 36. A photoelectric conversion element 40 and a drive circuit 42 for driving the photoelectric conversion element 40 are provided on the surface of the substrate body 36. Photoelectric conversion element 40
Is a light receiving element or a light emitting element, and in this specification, includes both a light-to-electrical conversion element and a light-to-electricity conversion element. The photoelectric conversion element 40 is arranged at the lower end of the substrate body 36, and the other end 24 of the optical fiber 24.
c hits, and an optical connection is made. However, the other end 24c of the optical fiber 24 and the photoelectric conversion element 40
As long as the optical connection loss is sufficiently small, the gaps between and are not necessarily abutted, and there may be a gap between the other end 24c of the optical fiber 24 and the photoelectric conversion element 40.

In this embodiment, eight optical wiring circuits 16 are laminated, and the other end 24c of the optical fiber 24 is formed.
Are regularly arranged in the sheet direction and the stacking direction of the support substrate 18, respectively. The electric wiring board 14 is connected in a direction orthogonal to the laminating direction of the optical wiring circuit 16, and is configured to transmit / receive an 8-bit optical signal to / from the optical wiring circuit laminated body 12. Has been formed.

In the above structure, the light output from any photoelectric conversion element 40 of the electric wiring board 14 is connected to the photoelectric conversion element 40.
Is input to the optical wiring circuit 16 from the other end 24c. The input light is transmitted through the optical fiber 24 to the transparent medium 20.
Then, the light-transmitting medium 20 passes through the medium while being totally reflected, hits the reflecting portion 22, and is diffused while being reflected. Then, the light passes through the transparent medium 20 again and is output to the electric wiring board 14 via another optical fiber 24.

Next, the problem of the wiring area in the optical wiring circuit 16 will be described. In FIG. 5, the wiring portion of the above embodiment is shown, and the minimum required wiring area S (mm ² ) can be expressed as follows. S = a1 * b1 ... (1) Here, a1 is the vertical width (mm) of the minimum area part, and b1 is the same horizontal width (mm). Further, the vertical width (including the reflection portion 22) of the transparent medium 20 is a2 (mm), and the horizontal width thereof is b2 (m).
m), the radius of curvature of the bent portion 24b of the optical fiber 24 is R (mm), and the pitch of the other end 24c of the optical fiber 24 is P.
(Mm), a1 = a2 + R ... (2) b1 = b2 + R + (8-1) * P ... (3) From the above formulas (2) and (3), S = (a2 + R) × (b2 + R + 7 × P) ··· (4) Now, the transparent medium 20 has a vertical width of 8 mm and a horizontal width of 40 mm,
The thickness is 1.0 mm, and the diameter φ of the optical fiber 20 is 1 mm.
And the pitch P is 20 mm. When φ = 1 mm,
As described above, in order to reduce the bending loss to 0.2 dB or less, R = 15 mm or more is required. Therefore, R = 1 here.
5 mm. Substituting these into equation (4), S = 4
To obtain 485 mm ² . On the other hand, in the comparative example shown in FIG. 6, the other end 20c of the optical fiber 24 is drawn out to a plane parallel to the first end face 20a of the translucent medium 20, and the minimum required wiring area S is It can be expressed as follows. S = 7P × (b2 + 2R + α) (5) where α is an adjustment value (m
m). Here, similarly, the vertical width of the transparent medium 20 is set to 8
mm, width 40 mm, pitch P 20 mm, and radius of curvature 15 mm, S = 11200 mm ² . Therefore, the wiring area in the above embodiment can be reduced by about 60% as compared with the comparative example. this is,
In the above embodiment, the bent portion 20 of the optical fiber 20.
This is because one b is required to be formed, whereas the comparative example requires two bent portions and has a small dead space.

FIGS. 7 and 8 show a second embodiment of the present invention and a comparative example for the second embodiment.
In the first embodiment and the comparative example, the optical fiber 2
In contrast to the case where the number of 4 is 8, the number of the optical fibers 24 is 16 in the second embodiment and the second embodiment. Here, the transparent medium 2
0 width 8mm, width 80mm, pitch P 20m
If m, the radius of curvature are 15 mm, and the adjustment value α is 20 mm, in the second embodiment, S = 31 mm × 395 mm =
12245 (mm ² ) is obtained. On the other hand, in the comparative example, S = 300 mm × 140 mm = 42000 mm ² is obtained, and the wiring area in the second embodiment can be reduced by about 70% as compared with the comparative example. The width of the translucent medium 20 in the second embodiment is 80 mm.
The reason why the length is longer than that in the first embodiment is that the number of the optical fibers 24 is increased, so that it is necessary to secure a length by which the light is mixed in the transparent medium 20.

A third embodiment of the invention is shown in FIGS. 9 and 10. In the above-described first embodiment, the optical fiber is wired on the support substrate 18, but in the third embodiment, wiring is performed without the support substrate, which simplifies the structure. That is, for example, the optical fiber 2
4, one end 24a of the optical fiber 24 is directly connected to the second end surface 20b of the translucent medium 20 arranged in parallel,
The other end 24c extends upward through the bent portion 24b, and the other end 24c is pulled out to a plane parallel to the third end face 20c and the fourth end face 20d of the translucent medium 20 and is fixed by the other end fixing member 34. The other end fixing member 34 is formed in parallel at a predetermined interval in correspondence with an electric wiring board (not shown) to be connected, and collects the other ends 24c of the optical fibers 24 extending from the respective light transmissive media 20. There is. The other end fixing member 34 is inserted and fixed in an optical fiber insertion hole 44 formed in the other end fixing member 34 to be positioned. However,
The other end fixing member 34 is not limited to this, and as shown in FIG.
Optical fiber insertion groove 48 divided into 6b and facing each other
a, 48b are formed, and the two split members 46a, 46b
The other end of the optical fiber 24 may be fixed to the optical fiber insertion grooves 48a and 48b by joining b with an adhesive or the like. Further, as shown in FIG. 12, the optical fiber insertion grooves 48a and 48b may be formed in a V shape instead of the cylindrical shape, or as shown in FIG.
Alternatively, the other end 24c of the optical fiber 24 may be fixed to 8 together.

14 and 15, the fourth embodiment of the present invention is described.
Is shown. The fourth embodiment is different from the above-described first embodiment in that a translucent medium holding member 50 and an optical fiber holding member 52 are provided. Translucent medium pressing member 50 and optical fiber pressing member 52
Are fixed to the supporting substrate 18 with the transparent medium accommodating groove 26 and the optical fiber accommodating groove 30 of the supporting substrate 18 interposed therebetween so as to press the upper surfaces of the transparent medium 20 and the optical fiber 24, respectively. The translucent medium pressing member 50 and the optical fiber pressing member 52 may be fixed to the supporting substrate 18 with an adhesive or the like, or may be fixed so as to be sandwiched between the adjacent supporting substrates 18. The support substrates 18 can also be fixed to each other at regular intervals via a holding member (not shown).

16 and 17, the fifth aspect of the present invention is described.
Is shown. In the fifth embodiment, as compared with the above-described first embodiment, all the optical fibers in the first embodiment are bent in one direction to be drawn out to one surface. The difference is that it was pulled out to two sides. That is, of the eight optical fibers 24, four near the third end surface 24 c of the transparent medium 20 are accommodated in the optical fiber accommodation groove 30 formed by being bent toward the upper surface side of the support substrate 18. It is pulled out to the upper surface of the support substrate 18 and is close to the fourth end surface 24d of the translucent medium 20.
The book is housed in an optical fiber housing groove 30 formed by being bent to the lower surface side of the supporting substrate 18, and is drawn out to the lower surface of the supporting substrate 18. The optical fiber 24 drawn to the upper surface of the support substrate 18 is connected to the electrical wiring board 14 arranged on the upper surface side of the support substrate 18, and the optical fiber 24 drawn to the lower surface of the support substrate 18 is The electric wiring boards 14 arranged on the lower surface side are respectively connected. In the fourth embodiment, the connection with the electric wiring board is divided into two surfaces, but since the optical fiber is divided into two surfaces and pulled out, the lateral direction can be shortened and the light arranged compactly. An electric wiring device can be provided.

Referring to FIG. 18, a sixth embodiment of the present invention is shown. In the sixth embodiment, the second end face 20b of the translucent medium 20 has the first end face 20a.
Is formed continuously with the step portion 54, and one end 24a of the optical fiber 24 is connected to the step portion 54. By thus forming the step portion 54, the optical fiber 24
The bent portion 24b can be immediately formed from the connecting portion of the step portion 54, the length of the optical fiber 24 extending in the lateral direction can be shortened, and the wiring area can be further reduced.

In FIG. 19, a seventh embodiment of the present invention is shown. Compared to the sixth embodiment, in the seventh embodiment, the step portion 54 is formed parallel to the first end surface 24a in the sixth embodiment, whereas the seventh embodiment is non-parallel, for example, 45 degrees. Is formed in. This step 54
Is provided with a reflection surface, and one end 24a of the optical fiber 24 is connected to the reflection surface with an inclination of 45 degrees. Therefore, the light entering from the optical fiber 24 is reflected by the step portion 54 toward the above-described reflecting portion 22, is reflected by the reflecting portion 22 in the opposite direction, is reflected by the step portion 54 again, and is output from another optical fiber 24. It is what is done. Thus, the step 54
Since the light is reflected by the optical fiber 24
Is the other end 24c of the optical fiber 24 without providing a bent portion.
Can be pulled out to the full. However, optical fiber 2
When it is necessary to increase the pitch of the other end 24c of No. 4, the optical fiber 24 can be provided with a bent portion. Further, in combination with the fifth embodiment, the stepped portion 54 can be composed of parallel surfaces and non-parallel surfaces. In the description of the second to sixth embodiments, the same parts as those of the first embodiment are designated by the same reference numerals in the drawings and their description is omitted.

In the above embodiment, the optical wiring circuit is connected to the electric wiring board, but the object to be connected is not limited to this and may be connected to another optical wiring board. Alternatively, it may be connected to an optical fiber.

[0030]

As described above, according to the optical wiring circuit of the present invention, the optical fiber is connected to the surface of the translucent medium facing the reflecting portion, and the other end of the optical fiber is a non-parallel surface. Since it is drawn out toward, the area of the wiring portion can be reduced, and thus the overall size can be reduced. Further, according to the optical wiring circuit laminated body of the present invention, since a plurality of optical wiring circuits having the reflecting portion are laminated in the sheet direction of the translucent medium, it is possible to perform signal transmission between arbitrary circuit boards. You can Furthermore, according to the optoelectronic interconnection device of the present invention, it is possible to obtain an optical bus system having high resistance to temperature changes and environmental changes such as dust.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing a support substrate used in the first embodiment of the present invention.

FIG. 3 is a perspective view showing an optical wiring circuit laminated body excluding the other end fixing member used in the first embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a connecting portion between an optical fiber and an electric wiring board according to a large embodiment of the present invention.

FIG. 5 is a plan view showing the outline of the optical wiring according to the first embodiment of the present invention.

FIG. 6 is a plan view showing the outline of optical wiring in a comparative example for comparison with the first embodiment of the present invention.

FIG. 7 is a plan view showing an outline of an optical wiring according to a second embodiment of the present invention.

FIG. 8 is a plan view showing the outline of optical wiring in a comparative example for comparison with the second embodiment of the present invention.

FIG. 9 is a perspective view showing a third embodiment of the present invention.

FIG. 10 is a perspective view showing the other end fixing member used in the third embodiment of the present invention.

FIG. 11 is a perspective view showing a first modification of the other end fixing member of the above.

FIG. 12 is a plan view showing a second modification of the other end fixing member of the above.

FIG. 13 is a perspective view showing a third modification of the other end fixing member of the above.

FIG. 14 is a plan view showing a fourth embodiment of the present invention.

FIG. 15 shows a fourth embodiment of the present invention, which corresponds to FIG.
FIG.

FIG. 16 is a plan view showing the outline of an optical wiring according to a fifth embodiment of the present invention.

FIG. 17 is a sectional view showing a fifth embodiment of the present invention.

FIG. 18 is a side view showing a sixth embodiment of the present invention.

FIG. 19 is a side view showing a seventh embodiment of the present invention.

[Explanation of symbols]

10 Opto-electrical wiring device 12 Optical wiring circuit laminate 14 Electric wiring board 16 Optical wiring circuit 18 Support substrate 20 Translucent medium 20a First end face 20b Second end face 20c Third end face 20d Fourth end face 22 Reflector 24 optical fiber 24a One end 24b bent part 24c the other end 26 Translucent medium accommodation groove 28 Reflection section accommodation groove 30 Optical fiber housing groove 32 One end fixing member 34 Other end fixing member 50 Translucent medium pressing member 52 Optical fiber pressing member 54 steps

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hidenori Yamada             430 Sakai, Nakai-cho, Ashigarakami-gun, Kanagawa Prefecture             Kunakai Fuji Xerox Co., Ltd. (72) Inventor Ken Uemura             430 Sakai, Nakai-cho, Ashigarakami-gun, Kanagawa Prefecture             Kunakai Fuji Xerox Co., Ltd. (72) Inventor Shinya Kyozuka             430 Sakai, Nakai-cho, Ashigarakami-gun, Kanagawa Prefecture             Kunakai Fuji Xerox Co., Ltd. (72) Inventor Takehiro Niitsu             430 Sakai, Nakai-cho, Ashigarakami-gun, Kanagawa Prefecture             Kunakai Fuji Xerox Co., Ltd. (72) Inventor Kazuhiro Sakai             430 Sakai, Nakai-cho, Ashigarakami-gun, Kanagawa Prefecture             Kunakai Fuji Xerox Co., Ltd. (72) Inventor Tomao Baba             430 Sakai, Nakai-cho, Ashigarakami-gun, Kanagawa Prefecture             Kunakai Fuji Xerox Co., Ltd. (72) Inventor Tsutomu Hamada             430 Sakai, Nakai-cho, Ashigarakami-gun, Kanagawa Prefecture             Kunakai Fuji Xerox Co., Ltd. (72) Inventor Shoji Hisada             430 Sakai, Nakai-cho, Ashigarakami-gun, Kanagawa Prefecture             Kunakai Fuji Xerox Co., Ltd. (72) Inventor Shinobu Ozeki             430 Sakai, Nakai-cho, Ashigarakami-gun, Kanagawa Prefecture             Kunakai Fuji Xerox Co., Ltd. (72) Inventor Nori Takanashi             430 Sakai, Nakai-cho, Ashigarakami-gun, Kanagawa Prefecture             Kunakai Fuji Xerox Co., Ltd. (72) Inventor Masaaki Miura             430 Sakai, Nakai-cho, Ashigarakami-gun, Kanagawa Prefecture             Kunakai Fuji Xerox Co., Ltd. (72) Inventor Kenichi Kobayashi             430 Sakai, Nakai-cho, Ashigarakami-gun, Kanagawa Prefecture             Kunakai Fuji Xerox Co., Ltd. (72) Inventor Akira Toshima             430 Sakai, Nakai-cho, Ashigarakami-gun, Kanagawa Prefecture             Kunakai Fuji Xerox Co., Ltd. F term (reference) 2H037 AA01 BA02 BA11 BA24 DA03                       DA04                 2H038 AA25 CA34 CA52

Claims (21)

[Claims] 1. A translucent medium having a first end surface and a second end surface facing each other, a reflecting portion provided on the first end surface of the translucent medium, and a second part of the translucent medium. A plurality of optical fibers having one end optically connected to the end face of the optical fiber and the other end extending from the input end, and the other end of the optical fiber is different from the first end face of the transparent medium. An optical wiring circuit, which is drawn out toward parallel surfaces. 2. The translucent medium is formed in a sheet-like rectangular parallelepiped, and has a third end surface and a fourth end surface which connect the first end surface and the second end surface and are parallel to each other. The optical wiring circuit according to claim 1. 3. The light according to claim 2, wherein the surface not parallel to the first end surface of the transparent medium is a surface parallel to the third end surface and the fourth end surface. Wiring circuit. 4. The other ends of all of the plurality of optical fibers are
The optical wiring circuit according to claim 1, wherein the optical wiring circuit is drawn out toward a surface that is not parallel to the first end surface of the transparent medium. 5. The other end of at least one optical fiber and the other end of at least another one of the plurality of optical fibers are directed toward different surfaces that are not parallel to the first end surface. It is drawn out and is characterized by the above-mentioned.
4. The optical wiring circuit according to any one of 3 to 3. 6. The surface according to claim 5, wherein the different surface that is not parallel to the first end surface of the translucent medium is a surface that is parallel to the third end surface and the fourth end surface. Optical wiring circuit. 7. The other end of at least one optical fiber of the plurality of optical fibers is drawn to the third end face side and connected to the side closer to the fourth end face than the one optical fiber. 7. The optical wiring circuit according to claim 6, wherein the other end of at least one other optical fiber is drawn to the fourth end face side. 8. At least one of the optical fibers has a bent portion having a radius of curvature of a predetermined value or more between one end and the other end of the optical fiber. 7. The optical wiring circuit according to any one of 7 to 7. 9. The optical wiring circuit according to claim 1, wherein one end of the optical fiber is inserted and fixed in one end fixing member. 10. The optical wiring circuit according to claim 1, wherein the other end of the optical fiber is inserted and fixed in another end fixing member. 11. A second end face of the transparent medium has a step portion formed in parallel with the first end face, and one end of the optical fiber is connected to the step portion. The optical wiring circuit according to claim 1. 12. The second end surface of the transparent medium has a step portion formed non-parallel to the first end surface, and one end of the optical fiber is connected to the step portion. Claim 1
The optical wiring circuit according to any one of 1 to 11. 13. The method according to claim 1, further comprising a support substrate having a translucent medium accommodation groove formed therein, wherein the translucent medium is accommodated in the translucent medium accommodation groove of the support substrate. Optical wiring circuit. 14. The optical wiring board according to claim 13, wherein the translucent medium is fixed to the supporting substrate by a translucent medium pressing member. 15. The light according to claim 1, further comprising: a support substrate having a reflection portion accommodation groove for accommodating the reflection portion, wherein the reflection portion is accommodated in the reflection portion accommodation groove of the support substrate. Wiring circuit. 16. The optical wiring circuit according to claim 1, further comprising a support substrate having an optical fiber accommodation groove formed therein, wherein the optical fiber is accommodated in the optical fiber accommodation groove accommodation groove of the supporting substrate. . 17. The optical wiring circuit according to claim 16, wherein the optical fiber is fixed to the supporting substrate by an optical fiber pressing member. 18. The optical wiring circuit according to claim 1, wherein the reflection portion is configured as a reflection diffusion portion having a function of diffusing light in addition to a function of reflecting light. 19. A sheet-like light-transmitting material having first and second end surfaces facing each other and third and fourth end surfaces provided between the first and second end surfaces. A medium, a reflecting portion provided on the first end face of the transparent medium, a plurality of ends having one end optically connected to the second end face of the transparent medium and the other end extending from the one end. An optical fiber, and the other end of the optical fiber has a plurality of optical wiring circuits that are drawn out toward a surface that is not parallel to the first end surface of the transparent medium. A plurality of optical wiring circuit laminates are laminated along the side surface direction of the sheet of the translucent medium. 20. A sheet-like translucency having first and second end surfaces facing each other and third and fourth end surfaces provided between the first and second end surfaces. A medium, a reflecting portion provided on the first end face of the transparent medium, a plurality of ends having one end optically connected to the second end face of the transparent medium and the other end extending from the one end. An optical fiber, and the other end of the optical fiber has a plurality of optical wiring circuits that are drawn out toward a surface that is not parallel to the first end surface of the transparent medium. Has an optical wiring circuit laminate in which a plurality of layers are laminated along the side surface direction of the sheet of the translucent medium, and a plurality of electric wiring boards having photoelectric conversion elements, and the photoelectric conversion elements of the electric wiring board are An optical / electrical wiring device, which is connected to the other end of the optical fiber. 21. The optical / electrical wiring device according to claim 20, wherein the electric wiring substrate is arranged in a direction orthogonal to the laminating direction of the optical wiring circuit laminated body.