JP3952364B2 - Optical wiring circuit laminate and optoelectric wiring device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to the structure of an optical wiring circuit laminate used in, for example, an optical bus system.
[0002]
[Prior art and problems to be solved by the invention]
An electric bus circuit is generally used to connect a plurality of microprocessors and memories. However, the electrical bus circuit has a problem that the processing speed of the system is limited by the signal delay caused by the capacitance between the connection wires and the connection wire resistance, and electromagnetic noise is generated when the density of the parallel bus connection wires is increased. Therefore, it is becoming difficult to cope with high speed. Therefore, an optical interconnection technique that replaces electrical wiring with optical wiring to increase the speed of the bus has been proposed.
[0003]
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 spatially between the light emitting / receiving devices on adjacent circuit boards incorporated in the system frame. The combined one is disclosed. However, since the disclosed invention requires optical / electrical conversion for each communication between adjacent circuit boards, the cost is high and the delay amount is large. Further, since light is propagated through free space, the positioning of the optical / electrical element is strict and weak against crosstalk, dust, and the like.
[0004]
Japanese Examined Patent Publication No. 6-93051 includes a plate having two parallel surfaces and facing a light source, and a diffraction grating and a reflection element are respectively disposed on two surfaces of the plate. An optical path is configured using a free space constituted by the above, and circuits are optically connected through this optical path. However, in this disclosed invention, since only one-to-one communication is intended, light emitted from one point is connected to only one other fixed point, and one-point-to-multipoint or multipoint To-many communication is not possible.
[0005]
Japanese Patent Application Laid-Open No. 2000-329962 filed earlier by the applicant of the present application has a configuration in which a sheet-like translucent medium is provided on a support substrate and a plurality of optical fibers are connected to both sides of the translucent medium. It is shown. However, in this disclosed invention, the optical fiber is connected to both sides of the translucent medium, and one is used for input and the other is used for output.
[0006]
Although the technical field is different from the above conventional example, Japanese Patent Application Laid-Open No. 9-265019 discloses a plurality of optical signal input / output terminals as an optical signal distribution device used in an optical transmission measurement system. An input / output unit, an optical circuit unit that reflects and branches an optical signal, and a plurality of optical fibers are disclosed in a housing. The optical circuit unit includes an optical circuit block having an incident surface connected to the optical fiber, and a reflection unit is provided on the surface opposite to the incident surface of the optical circuit block. An optical signal input from one arbitrary optical input / output unit to the optical circuit unit via the optical fiber is reflected by the optical circuit unit and is equally distributed from the other optical input / output unit via the other optical fiber. It can be output. 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 drawn out in a fan shape toward a surface parallel to the surface. 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 bend them inward again. Therefore, the area of the optical wiring portion must be increased. There was no problem.
[0007]
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 reduce the size of the entire optical wiring circuit. An object is to provide an optical wiring circuit laminate in which a plurality of optical wiring circuits are stacked.
[Means for Solving the Problems]
[0008]
In order to solve the above-described problem, the first feature of the present invention is that a first end surface and a second end surface facing each other and a third end surface provided between the first end surface and the second end surface are provided. A sheet-like translucent medium having a first end surface and a fourth end surface; a reflecting portion provided on the first end surface of the translucent medium; and a second end surface of the translucent medium optically A plurality of optical fibers having one end connected and the other end extending from the one end, and the other end of the optical fiber extends in parallel with a side surface of the translucent medium, and the first end of the translucent medium. the end faces of a plurality of optical wiring circuits are led out toward the flat surface becomes disposed on the plane orthogonal, the optical wiring circuit is stacked along the sheet side direction of the translucent medium the sheet side surface of the transparent medium other end of the optical fiber is fixed by the other end fixing member Direction and in optical wiring circuit laminate are regularly arranged in the laminating direction of the transparent medium. As described above, since a structure in which a plurality of optical wiring circuits are stacked is provided, it is possible to connect to an electric wiring board having a plurality of bits and other optical wiring circuits while being compact.
[0009]
As the translucent medium, a block-like or cylindrical one can be used, but a sheet-like thin rectangular parallelepiped is preferable. In this case, it is preferable that the other end of the optical fiber is drawn out toward a third end face connecting the first end face and the second end face or a plane parallel to the fourth end face. 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 to the third end surface and the fourth end surface side. Moreover, it is preferable from a fixed viewpoint that a translucent medium, a reflection part, and an optical fiber are wired to the support substrate in which the accommodation groove | channel was formed corresponding to each. In order to further improve the fixing property, a fixing member that fixes a plurality of optical fibers together at one end, the other end, or both ends of the optical fiber may be provided, or the translucent medium or the optical fiber is fixed to the support substrate. A pressing member can also be provided.
[0010]
In general, when an optical fiber is bent below a predetermined radius of curvature, the optical loss increases. In order to reduce the optical loss, it is necessary to perform wiring with a predetermined radius or more. For example, in the case of a currently known optical fiber having a diameter of 1 mm, 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 toward a surface that is non-parallel to the first end surface of the translucent medium. Therefore, when it is necessary to bend the optical fiber, it can be pulled out by providing at most one bent 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 Is less. In particular, when connecting to a device such as a hard disk via an electrical 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. Although the lateral width is increased, in the present invention, the area of the optical wiring portion can be reduced, which is suitable for use in such applications.
[0011]
The second feature of the present invention is that the first end face and the second end face facing each other, and the third end face and the fourth end face provided between the first end face and the second end face are provided. A sheet-like translucent medium having a reflective portion provided on the first end face of the translucent medium, one end optically connected to the second end face of the translucent medium, and one end thereof and a plurality of optical fiber having a second end extending, the other end of the optical fiber, a flat surface orthogonal to the first end surface of the transparent medium extends parallel to the side surface of the transparent medium A plurality of optical wiring circuits that are drawn out toward the surface and disposed on the plane , the optical wiring circuits are stacked along the sheet side surface direction of the translucent medium, and the other end of the optical fiber is lamination is secured by the other end fixing member to the sheet side direction of the translucent medium the transparent medium Countercurrent Prefecture in the optical wiring circuit laminate are regularly arranged, and a plurality of electric wiring board having a photoelectric conversion element, connected photoelectric conversion element of the electric wiring board to the other end of the optical fiber In the optoelectric wiring device. Therefore, since light is reflected by the reflecting portion in the optical wiring circuit laminate, transmission / reception with another electric wiring board is possible regardless of the position where one electric wiring board is connected. In addition, since the electrical wiring board is connected on one side of the optical wiring circuit, the structure as the photoelectric wiring device is simplified, the delay amount is small, and it can be made strong against crosstalk and dust. Furthermore, it is possible to have more connection points by combining the optical wiring circuit laminate and the electric wiring board.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings. 1 to 4 show a first embodiment of the present invention, in which an opto-electrical wiring device 10 includes an optical wiring circuit laminate 12 and a plurality of electric wiring boards 14. The optical wiring circuit laminate 12 has a plurality of optical wiring circuits 16 (eight in this embodiment) formed in a sheet shape, and is configured by stacking the optical wiring circuits 16 in the sheet side surface direction. . The electrical wiring board 14 has a CPU and a memory, and is optically connected to the optical wiring circuit 16.
[0013]
The optical wiring circuit 16 includes a support substrate 18, a translucent medium 20, a reflecting portion 22, and a plurality of optical fibers (eight in this embodiment) 24 arranged on the support substrate 18. The translucent medium 20 is made of, for example, a plastic material such as polymethyl methacrylate, polycarbonate, and amorphous polyolefin, or inorganic glass. In the case of a plastic material, it is formed by injection molding. The production accuracy can be improved by injection molding. Further, by making the support substrate 18 opaque, light leakage to other support substrates can be reduced, and crosstalk between bits can be reduced.
[0014]
On one surface of the support substrate 18, a translucent medium accommodating groove 26 for accommodating the translucent medium 20, a reflecting portion accommodating groove 28 for accommodating the reflecting portion 22, and an optical fiber accommodating groove for accommodating the optical fiber 24. 30 is formed. The reflection portion accommodation groove 28 is formed to be slightly wider and deeper after the translucent medium accommodation groove 26 at one end surface of the translucent medium accommodation groove 26. The optical fiber accommodation groove 30 is formed on the opposite side of the reflection portion accommodation groove 28 following the translucent medium accommodation groove 26, branches according to the number of optical fibers 24, and faces the upper surface of the support substrate 18. It is out.
[0015]
The translucent medium 20 is formed in a sheet-like rectangular parallelepiped like the support substrate 18, and the first end surface 20 a and the second end surface 20 b facing each other in the longitudinal direction, and the first end surface 20 a and the second end surface 20 b. The third end surface 20c and the fourth end surface 20d connect the end surface 20b. The first end surface 20 a and the second end surface 20 b of the translucent medium 20 are parallel to the side surface of the support substrate 18, and the third end surface 20 c and the fourth end surface 20 d are parallel to the upper surface and the lower surface of the support substrate 18. is there.
[0016]
The reflection unit 22 is configured as a reflection diffusion 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 acrylic, polycarbonate, polyester, and is cured with ultraviolet rays. A reflecting surface such as aluminum is provided in a diffusion portion called LSD (Light Shaping Diffusers) in which a pattern is formed. By accommodating the reflecting portion 22 in the reflecting portion receiving groove 28 of the support substrate 18, the reflecting portion 22 is abutted against the first end surface 20 a of the translucent medium 20 and is closely fixed to the translucent medium 20. However, the reflecting portion 22 may be formed integrally with the translucent medium 20 via an adhesive or the like.
[0017]
The optical fiber 24 is accommodated in the optical fiber accommodation groove 30 of the support substrate 18, so that one end 24 a of the optical fiber 24 is abutted against the second end surface 20 b of the translucent medium 20 and optically connected. ing. The connecting portion is fixed as a bundle by one end fixing member 32. Each of the optical fibers 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 via the bent portion 24b is a 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 to 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 will be described later. ing. As described above, all the other ends 24c of the optical fiber 24 are drawn out to a plane that is not parallel to the second end face 20b of the translucent medium 20, that is, parallel to the third end face 20c and the fourth end face 20d. It is what has been.
[0018]
As shown in FIG. 4, the electrical wiring board 14 includes a board body 36 and a connector 38 provided at one end of the board 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. The photoelectric conversion element 40 is a light receiving element or a light emitting element, and in this specification, includes both an element that converts light into electricity and an element that converts electricity into light. The photoelectric conversion element 40 is disposed at the lower end of the substrate body 36, and the other end 24c of the optical fiber 24 abuts to be optically connected. However, the gap between the other end 24c of the optical fiber 24 and the photoelectric conversion element 40 is not necessarily abutted as long as the optical connection loss is sufficiently small. There may be a gap between the conversion element 40.
[0019]
In this embodiment, eight optical wiring circuits 16 are laminated, and the other ends 24c of the optical fibers 24 are arranged in a regular line in the sheet direction and the lamination direction of the support substrate 18, respectively. The electrical wiring board 14 is connected in a direction perpendicular to the stacking direction of the optical wiring circuit 16 and is configured to transmit and receive an 8-bit optical signal to and from the optical wiring circuit stack 12. Is formed.
[0019]
In the above configuration, light output from any photoelectric conversion element 40 of the electrical wiring board 14 is input to the optical wiring circuit 16 from the other end 24c of any one of the optical fibers 24 connected to the photoelectric conversion element 40. The The input light enters the translucent medium 20 through the optical fiber 24, passes through the translucent medium 20 while totally reflecting, hits the reflecting portion 22, and diffuses while reflecting. Then, the light passes through the translucent medium 20 again and is output to the electrical wiring board 14 via another optical fiber 24.
[0020]
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 lowest area portion, and b1 is the horizontal width (mm). Further, the longitudinal width (including the reflection portion 22) of the translucent medium 20 is a2 (mm), the lateral width is b2 (mm), the radius of curvature of the bent portion 24b of the optical fiber 24 is R (mm), and the optical fiber. If the pitch of the other end 24c of P is P (mm), a1 = a2 + R (2)
b1 = b2 + R + (8-1) × P (3)
From the above expressions (2) and (3), S = (a2 + R) × (b2 + R + 7 × P) (4)
Now, the translucent medium 20 has a longitudinal width of 8 mm, a lateral width of 40 mm, a thickness of 1.0 mm, the optical fiber 20 having a diameter φ of 1 mm, and a pitch P of 20 mm. In the case of φ = 1 mm, as described above, R = 15 mm or more is necessary to make the bending loss loss 0.2 dB or less, so here R = 15 mm. If this is substituted into the equation (4), S = 4485 mm 2 is obtained. 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)
Α is an adjustment value (mm) associated with the spread of the optical fiber 20. Similarly, if the longitudinal width of the translucent medium 20 is 8 mm, the lateral width is 40 mm, the pitch P is 20 mm, and the curvature radius is 15 mm, S = 11200 mm 2 is obtained. Therefore, the wiring area in the above embodiment can be reduced by about 60% compared to the comparative example. This is because, in the above-described embodiment, only one bending portion 20b of the optical fiber 20 is formed, but the comparative example requires two bending portions and a portion that becomes a dead space is small. .
[0021]
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 number of optical fibers 24 is eight. In contrast, in the second embodiment and the second embodiment, the number of optical fibers 24 is set to 16. Here, assuming that the longitudinal width of the translucent medium 20 is 8 mm, the lateral width is 80 mm, the pitch P is 20 mm, the curvature radius is 15 mm, and the adjustment value α is 20 mm, in the second embodiment, S = 31 mm × 395 mm = 12245 (mm2) 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% compared to the comparative example. The translucent medium 20 in the second embodiment has a width of 80 mm and is longer than that in the first embodiment because the number of optical fibers 24 is increased. This is because it is necessary to secure a length for mixing light.
[0022]
9 and 10, a third embodiment of the present invention is shown. In the first embodiment described above, an optical fiber is wired on the support substrate 18, but in the third embodiment, wiring is performed without a support substrate, and the structure is simplified. That is, for example, in the optical fiber 24, one end 24a of the optical fiber 24 is directly connected to the second end face 20b of the light-transmissive medium 20 arranged side by side, extends upward via the bent portion 24b, and the other end 24c The transparent medium 20 is drawn out to a plane parallel to the third end surface 20 c and the fourth end surface 20 d and is fixed by the other end fixing member 34. The other end fixing member 34 is formed in parallel at a predetermined interval corresponding to an electric wiring board (not shown) to be connected, and collects the other ends 24c of the optical fibers 24 extending from the respective translucent media 20. Yes. 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 so as to be positioned. However, the other end fixing member 34 is not limited to this, and as shown in FIG. 11, the other end fixing member 34 is divided into two divided members 46a and 46b, and opposed optical fiber insertion grooves 48a and 48b are formed. The other end of the optical fiber 24 may be fixed to the optical fiber insertion grooves 48a and 48b by joining the two divided members 46a and 46b with an adhesive or the like. Also, as shown in FIG. 12, the optical fiber insertion grooves 48a and 48b may be formed in a V shape instead of a cylindrical shape, or the optical fiber 24 is formed in one optical fiber insertion groove 48 as shown in FIG. The other end 24c can be fixed together.
[0023]
14 and 15, a fourth embodiment of the present invention is shown. The fourth embodiment differs from the first embodiment described above in that a translucent medium pressing member 50 and an optical fiber pressing member 52 are provided. The translucent medium holding member 50 and the optical fiber holding member 52 are respectively provided with the translucent medium accommodation groove 26 and the optical fiber accommodation groove of the support substrate 18 so as to press the upper surface portions of the translucent medium 20 and the optical fiber 24. The substrate 30 is fixed to the support substrate 18. The translucent medium pressing member 50 and the optical fiber pressing member 52 may be fixed to the support substrate 18 with an adhesive or the like, but may be fixed so as to be sandwiched between adjacent support substrates 18. The support substrate 18 can also fix the support substrates at regular intervals via a holding member (not shown).
[0024]
16 and 17, a fifth embodiment of the present invention is shown. In contrast to the first embodiment described above, the fifth embodiment is such that the optical fiber in the first embodiment is bent in one direction and drawn out to one surface. It is different in that it is drawn out on two surfaces. That is, of the eight optical fibers 24, four of the light transmissive medium 20 near the third end surface 24 c are accommodated in the optical fiber accommodation groove 30 formed by being bent toward the upper surface side of the support substrate 18. Four of the light-transmissive medium 20 that is drawn out to the upper surface of the support substrate 18 and is close to the fourth end surface 24d are accommodated in an optical fiber accommodation groove 30 that is bent to the lower surface side of the support substrate 18 to be supported. 18 is drawn to the lower surface. The optical fiber 24 drawn to the upper surface of the support substrate 18 is connected to the electric wiring substrate 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 Each is connected to the electric wiring board 14 arranged on the lower surface side. In this fourth embodiment, the connection with the electric wiring board is divided into two surfaces, but since the optical fiber is drawn out into two surfaces, the lateral direction can be shortened and the light arranged in a compact manner. An electrical wiring device can be provided.
[0025]
In FIG. 18, a sixth embodiment of the present invention is shown. In the sixth embodiment, a step portion 54 parallel to the first end surface 20 a is continuously formed on the second end surface 20 b of the translucent medium 20, and the optical fiber 24 is formed on the step portion 54. One end 24a is connected. In this way, by forming the step portion 54, the optical fiber 24 can immediately form the bent portion 24b from the connecting portion of the step portion 54, and shorten the length of the optical fiber 24 extending in the lateral direction. And the wiring area can be further reduced.
[0026]
In FIG. 19, a seventh embodiment of the present invention is shown. Compared with the sixth embodiment, the seventh embodiment is different from the sixth embodiment in that the stepped portion 54 is formed in parallel with the first end face 24a, but is not parallel, for example, 45 degrees. Is formed. The step portion 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, light entering from the optical fiber 24 is reflected by the step portion 54 toward the reflection portion 22 described above, reflected by the reflection portion 22 in the opposite direction, reflected again by the step portion 54, and output from the other optical fibers 24. It is what is done. Since the light is reflected by the step portion 54 as described above, the optical fiber 24 can draw out the other end 24c of the optical fiber 24 to one surface without providing a bending portion. However, when it is necessary to increase the pitch of the other end 24 c of the optical fiber 24, a bent portion can be provided in the optical fiber 24. Further, in combination with the fifth embodiment, the stepped portion 54 can be configured by a parallel surface and a non-parallel surface. In the description of the second to sixth embodiments, the same parts as those of the first embodiment are denoted by the same reference numerals in the drawings, and the description thereof is omitted.
[0027]
In the above embodiment, the optical wiring circuit is connected to the electric wiring board. However, the connection target is not limited to this, and the optical wiring circuit may be connected to another optical wiring board. You may make it connect to a fiber.
[0028]
【The invention's effect】
As described above, according to the optical wiring circuit laminate according to the present invention, since a plurality of optical wiring circuits having reflecting portions are laminated in the sheet direction of the translucent medium, signal transmission can be performed between arbitrary circuit boards. Can be possible. Furthermore, according to the opto-electrical wiring device according to the present invention, an optical bus system having high resistance to temperature changes and environmental changes such as dust can be obtained.
[Brief description of the 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 laminate excluding the other end fixing member used in the first embodiment of the present invention.
FIG. 4 is a cross-sectional view showing a connection portion between an optical fiber and an electric wiring board in a large embodiment of the present invention.
FIG. 5 is a plan view showing an outline of an optical wiring in the first embodiment of the present invention.
FIG. 6 is a plan view showing an outline of an optical wiring in a comparative example for comparison with the first embodiment of the present invention.
FIG. 7 is a plan view schematically showing an optical wiring in a second embodiment of the present invention.
FIG. 8 is a plan view schematically showing an 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.
FIG. 12 is a plan view showing a second modification of the other end fixing member.
FIG. 13 is a perspective view showing a third modification of the other end fixing member.
FIG. 14 is a plan view showing a fourth embodiment of the present invention.
15 shows a fourth embodiment of the present invention and is a cross-sectional view taken along line AA of FIG.
FIG. 16 is a plan view showing an outline of an optical wiring in a fifth embodiment of the present invention.
FIG. 17 is a cross-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]
DESCRIPTION OF SYMBOLS 10 Photoelectric wiring apparatus 12 Optical wiring circuit laminated body 14 Electrical wiring board 16 Optical wiring circuit 18 Support substrate 20 Translucent medium 20a 1st end surface 20b 2nd end surface 20c 3rd end surface 20d 4th end surface 22 Reflecting part 24 Optical fiber 24a One end 24b Bending portion 24c Other end 26 Translucent medium accommodating groove 28 Reflecting portion accommodating groove 30 Optical fiber accommodating groove 32 One end fixing member 34 Other end fixing member 50 Translucent medium pressing member 52 Optical fiber pressing member 54 Step

Claims (20)

A sheet-like translucent medium having a first end surface and a second end surface facing each other, and a third end surface and a fourth end surface provided between the first end surface and the second end surface, and the translucent medium. A reflecting portion provided on the first end face of the optical medium; and a plurality of optical fibers having one end optically connected to the second end face of the translucent medium and the other end extending from the one end. and the other end of the optical fiber, the extends parallel to the side surfaces of the transparent medium and the first end surface of said transparent medium is drawn toward the flat surface perpendicular disposed on the plane A plurality of optical wiring circuits are laminated along the sheet side surface direction of the translucent medium, and the other end of the optical fiber is fixed by the other end fixing member , each arranged regularly in the stacking direction of the sheet lateral and the transparent medium of the medium Optical wiring circuit laminate, characterized in that there. 2. The translucent medium is formed in a sheet-like rectangular parallelepiped, and has a third end surface and a fourth end surface that are parallel to each other and connect the first end surface and the second end surface. The optical wiring circuit laminate described. Flat surface, the third end face and claim 2 optical wiring circuit laminate, wherein the first is a fourth end surface parallel to the plane of which is perpendicular to the first end surface of said transparent medium. Of all of the plurality of optical fibers and the other end, the first end face and toward the 1 Tsunotaira surface perpendicular characterized by comprising been drawn claims 1 to 3, wherein any one of said transparent medium Optical wiring circuit laminate. Among the plurality of optical fibers, the other end of the at least one optical fiber, at least the other end of the other one of the optical fibers, to become drawn toward the different flat surface perpendicular to the first end surface The optical wiring circuit laminate according to any one of claims 1 to 3. It said different planar surface perpendicular to the first end surface of the transparent medium, the third end face and the optical wiring circuit laminate according to claim 5, wherein the first is a fourth end surface parallel to the plane of.  Among the plurality of optical fibers, at least one other end of at least one optical fiber is drawn to a third end face side, and is connected to a side closer to the fourth end face than the one optical fiber. 7. The optical wiring circuit laminate according to claim 6, wherein the other end of the optical fiber is drawn to the fourth end face side.  8. At least one of the optical fibers has a bent portion bent with a radius of curvature of a predetermined value or more between one end and the other end of the optical fiber. Optical wiring circuit laminate. 9. The optical wiring circuit laminate according to claim 1, wherein one end of the optical fiber is inserted and fixed to an end fixing member. 10. The optical wiring circuit laminate according to claim 1, wherein the other end of the optical fiber is inserted and fixed to the other end fixing member.  The second end surface of the translucent medium has a step portion formed in parallel with the first end surface, and one end of the optical fiber is connected to the step portion. The optical wiring circuit laminate described.  The second end surface of the translucent 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. 11. An optical wiring circuit laminate according to 11.  A support substrate having a translucent medium accommodation groove formed therein, the translucent medium being accommodated in the translucent medium accommodation groove of the support substrate, and the translucent medium being stacked via the support substrate; The optical wiring circuit laminate according to any one of claims 1 to 12.  The optical wiring circuit laminate according to claim 13, wherein the translucent medium is fixed to the support substrate by a translucent medium pressing member.  The optical wiring circuit laminate according to any one of claims 1 to 14, 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.  The optical wiring circuit laminate according to any one of claims 1 to 15, further comprising a support substrate on which an optical fiber accommodation groove is formed, wherein the optical fiber is accommodated in the optical fiber accommodation groove accommodation groove of the support substrate. 17. The optical wiring circuit laminate according to claim 16, wherein the optical fiber is fixed to the support substrate by an optical fiber pressing member. 18. The optical wiring circuit laminate 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. A sheet-like translucent medium having a first end surface and a second end surface facing each other, and a third end surface and a fourth end surface provided between the first end surface and the second end surface, and the translucent medium. A reflecting portion provided on the first end face of the optical medium; and a plurality of optical fibers having one end optically connected to the second end face of the translucent medium and the other end extending from the one end. and the other end of the optical fiber, the extends parallel to the side surfaces of the transparent medium and the first end surface of said transparent medium is drawn toward the flat surface perpendicular disposed on the plane A plurality of optical wiring circuits are laminated along the sheet side surface direction of the translucent medium, and the other end of the optical fiber is fixed by the other end fixing member , each arranged regularly in the stacking direction of the sheet lateral and the transparent medium of the medium And a plurality of electrical wiring boards having photoelectric conversion elements, and the photoelectric conversion elements of the electrical wiring board are connected to the other end of the optical fiber. Electrical wiring device.  20. The photoelectric wiring apparatus according to claim 19, wherein the electrical wiring board is arranged in a direction orthogonal to the stacking direction of the optical wiring circuit laminate.

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