JPS63173004A - Method and device for manufacturing optical transmission body array - Google Patents

Abstract

PURPOSE:To always provide in parallel an optical transmission body with high array accuracy and with satisfactory workability, by forming a winding surface by fixing a grooved plate member to the peripheral wall of a polygonal base body, and winding a fiber-like optical transmission body to this winding surface. CONSTITUTION:A grooved plate member 9 is fixed freely attachably and detachably to the peripheral wall surface of a polygonal winding bobbin 11, so that the surface 9a provided with a groove 10 is faced to the outside, and also, the groove 10 becomes a vertical direction to a revolving shaft of the winding bobbin 11, and the winding surface of an optical transmission body fiber 13 is formed. Subsequently, an optical transmission body fiber train formed on the grooved plate member 9, and the plate member 9 are stuck. Also, between each plate member end part 9b, the optical transmission body train is divided into eight pieces of fractions by cutting it with a cutter, etc., and each plate member is removed from the winding bobbin 11, by which the plate member 9 with the optical transmission body train is obtained. To these plate members 9, 9-1 with the optical transmission body train, an intermediate member 7 is stuck to the end part in accordance with necessity, and thereafter, other plate member 9-2 of the same size as the plate member 9-1 is stuck, and between two pieces of plate members 9-1, 9-2, the optical transmission body train is inserted and attached, and fixed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to the production of an optical transmission body array which is composed of a structure in which a large number of cylindrical optical transmission bodies are arranged in a row and is used for optical transmission of images. Regarding the method.

More specifically, a grooved plate member is fixed to the peripheral wall surface of a polygonal prism-shaped base to form a winding surface, and a fiber-shaped optical transmission body is guided through the groove provided in the plate member on the chain winding surface. After winding the light transmitting body as a material to form an array of optical transmitters on the plate member, the formed optical transmitter array and the plate member are adhered, and then the optical transmitter array is cut at the end of the plate member. to form a plate member with an array of optical transmitters, and then adhere another plate member to the other side of the array of optical transmitters of this plate member with an array of optical transmitters, or Glue two plate members with rows together,
The present invention relates to a method of manufacturing an optical transmitter array, which includes a step of sandwiching an optical transmitter array between two plate members.

[Conventional technology]

In the field of image transmission, optical transmission arrays that can produce erect images at the same size have been attracting attention in recent years, and are used in the optical transmission of image information in copying machines, facsimile machines, electronic blackboards, etc. .

This optical transmitter array typically consists of a large number of cylindrical light beams, each of which reaches from one side to the other, between two plate members joined at a predetermined interval by an intermediate member. It has a structure in which transmitters are assembled in precise rows. Note that the optical transmission bodies incorporated in this optical transmission body array are made of cylindrical lenses or optical fibers.

What is the conventional method of assembling such an optical transmitter array? This will be explained below.

FIG. 8 to FIG. 1O are main process diagrams of a conventional method of assembling an optical transmitter array.

First, as shown in FIG. 8, the surface plate 2 or vacuum chuck surface plate 3 is placed on the table 1 of the grinding machine, and the plate members 4 (4-1, 4-2) are fixed thereon. In addition, when fixing this plate member 4, in the case of a surface plate, use adhesive.
In the case of a vacuum chuck surface plate, the plate member 4 is fixed by suction force to eliminate warpage.

Next, the surface of the plate member 4 is ground by a grindstone 5 of an axle-type surface grinder, for example, to finish one surface of the plate member to a predetermined flatness.

As shown in FIG. 9, the plate member (4-1) surface-grounded in this way is placed on the surface plate 2 or vacuum chuck surface plate 3 placed on the workbench 6 where the optical transmitters are arranged side by side. It is fixed so that the processed surface 4-1a faces upward and is not warped by the same method as in the surface grinding process described above.

Here, the intermediate member 7 is fixed to both ends of the plate member 4-1 with adhesive, and a predetermined number of cylindrical light transmitting bodies 8 are arranged in a row on the ground surface 4-1a. form a line.

Next, as shown in FIG. 9, the plate member 4-2 subjected to surface grinding in the same manner as described above is placed on the intermediate member 7 so that the ground surface 4-28 is superimposed on the optical transmitter array. Glue to. Note that during this bonding, the optical transmission body array and the plate member 4-
The adhesive resin is also impregnated and filled into the spaces between the cylindrical light transmitting bodies 8 and between the cylindrical light transmitting bodies 8 constituting the light transmitting body array, and then dried.

Finally, by mirror-polishing both surfaces on which the end surfaces of each cylindrical optical transmitter 8 are located, both end surfaces of each optical transmitter 8 are also mirror-polished to obtain an optical transmitter array.

(Problems to be Solved by the Invention) The work of arranging the cylindrical optical transmitters side by side on a plate member in the conventional method as described above is difficult to stabilize on a flat surface, and the guides etc. It was extremely difficult to improve the alignment accuracy of the optical transmitters because no holes were used at all.Moreover, the conventional method described above also caused alignment holes in the optical transmitters, which caused a decrease in image transmission performance. There was also the problem that it was easy.

Furthermore, since the cylindrical optical transmitters are arranged one by one on the plate member by hand, the workability is poor, and in particular, the work of arranging the optical transmitter arrays in multiple stages is extremely troublesome. This was a difficult task, and there were limits to how workability and productivity could be improved.

The present invention has been made in view of these problems, and provides an optical transmitter array that can always obtain good alignment accuracy of optical transmitters and can significantly improve workability and productivity. An object of the present invention is to provide a manufacturing method and an apparatus used therefor.

(Means for Solving the Problems) The above object can be achieved by the following present invention.

That is, the present invention provides a method for manufacturing a light transmitting body array by fixing a light transmitting body array in which cylindrical light transmitting bodies are arranged side by side with two plate members, on the peripheral wall surface of a polygonal columnar base. A plate member provided with a plurality of parallel grooves at a pitch equal to the diameter of a fiber-shaped optical transmission body is made so that the surface with the grooves faces outward and the center axis of the polygonal prism is perpendicular to the plate member. One or more layers of fiber-shaped optical transmitters are wound around the chain winding surface using the grooves as guides, and the optical transmitter array is attached to the peripheral wall surface of the base. step (a) of forming the light transmitting body on a plate member fixed to the plate member; step (b) of adhesively fixing the light transmitting body array to the plate member; and cutting the light transmitting body at the end of the plate member; Step (c) of forming a plate member with array of optical transmitters, and bonding another plate member to the plate member with array of optical transmitters obtained in step (c), or step (c)
(d) of adhering two of the plate members with the optical transmitter array obtained in step (d) and sandwiching the optical transmitter array between the two plate members. Manufacturing method: A plate member is provided with a plurality of parallel grooves at a pitch equal to the diameter of a fiber-shaped optical transmission body on its polygonal prism-shaped peripheral wall surface, with the surface with the grooves facing outward, and A base body that can be detachably fixed in a direction in which the groove and the center axis of the polygonal column shaped portion are perpendicular to each other, and a groove provided in the plate member is attached to a peripheral wall of the base body to which the grooved plate member is fixed. This is an apparatus used for manufacturing an optical transmission body array, which includes winding means for winding one layer or several layers of fiber-shaped optical transmission bodies as a guide.

In the present invention, instead of manually arranging cylindrical light transmitting bodies in parallel on the plane of a plate member as in the conventional method, a plurality of grooves are arranged to correspond to a predetermined arrangement of the light transmitting bodies. Since the array of light transmitters is formed using a plate member having a groove as a guide, a predetermined arrangement of the light transmitters according to the arrangement of the grooves can be easily and accurately obtained. Moreover, this operation
A grooved plate member is installed on the peripheral wall of a polygonal prism-shaped base to form a winding surface, and a fiber-shaped optical transmission material is wound on this winding surface, which is a simple operation that allows continuous and accurate winding. I can do it. Moreover, when a plurality of plate members are installed on the surface constituting the base peripheral wall, a plurality of plate members with optical transmission body rows can be obtained simultaneously in one operation, and according to the present invention, workability, productivity and Significant improvement in assembly accuracy can be achieved.

Furthermore, in the method of the present invention, the arrangement accuracy of the optical transmission bodies is automatically determined by the arrangement of the grooves in the plate member, and good arrangement accuracy of the optical transmission body rows can always be obtained.

Further, the fiber-shaped optical transmission body is wound around the winding surface of the base body with appropriate tension, and is adhesively fixed to the plate member in this state without easily disturbing its arrangement. Therefore, the highly accurate arrangement of the light transmitting bodies determined by the grooves of the plate member is maintained throughout the bonding process with the plate member.

Furthermore, even when multiple layers of optical transmission bodies are stacked, good workability, productivity, and assembly accuracy can be obtained as described above.

Hereinafter, an example of the present invention will be explained in more detail using the drawings.

FIG. 1 is a schematic perspective view of a grooved plate member that can be used in the method of the present invention.

This plate member 9 has a typically rectangular plate shape, and has a groove l extending in a direction perpendicular to its lateral direction on one surface 9a.
O are precisely arranged in parallel (that is, with sufficiently high processing accuracy according to the predetermined arrangement accuracy of the optical transmission bodies) at a pitch equal to the diameter of the optical transmission bodies. Note that the groove lO is sometimes used for winding a fiber-shaped optical transmission body (hereinafter referred to as optical transmission fiber), which will be described later. Any structure may be used as long as it has a structure, for example,
It may be selected appropriately in consideration of its workability and the like. Examples of such a structure include one having a V-shaped cross section.

As the plate member 9, any material can be used as long as the grooves 1O can be formed with good accumulation and the material satisfies suitable strength and characteristics as a constituent member of the optical transmitter array. For example, it is possible to use resin materials such as FRP (fiber-reinforced resin), engineering plastics, and acrylic resins, and metal materials such as aluminum, which are processed or molded using a method suitable for the material used, such as NC processing or injection molding. .

On the other hand, FIG. 2 is a schematic diagram of an example of an apparatus for forming a plate member with an optical transmission body array using the plate member 9 having the configuration shown in FIG. 1, and FIG. FIG. 6 is an enlarged perspective view showing the positional relationship between the base and the traverse mechanism when winding the fiber-like optical transmission body around the winding surface formed on the peripheral wall surface of the base in the apparatus of FIG.

The plate member 9 having the above configuration is detachably fixed to the peripheral wall surface of the winding bobbin 11 as a polygonal prism-shaped base with bolts or the like. Note that when fixing the plate member 9, the grooved surface 9a of the plate member 9 faces outward, and the groove 10 of the plate member 9 is aligned with the central axis of the polygonal prism of the winding bobbin 11. Make sure it is oriented vertically. In this way, a winding surface of the optical fiber is formed on the wall surface of the winding bobbin 11.

Note that the peripheral wall surface of the polygonal prism-shaped base mentioned here refers to only the necessary portion even if it is a continuous plane, provided that the plate member 9 can be installed and the winding surface as described above can be formed. For example, it may be formed by a framework.

A drive motor 16 connected by a pulley and a belt is connected to the winding bobbin 11, and these constitute a rotation means for rotating the winding bobbin 11 around its polygonal columnar central axis. .

Furthermore, when winding the optical transmission fiber 13 around the winding surface formed on the peripheral wall surface of the winding bobbin 11, the winding at the winding section is performed by the traverse guide 15 that determines the position and the traverse guide 15. Winding bobbin 11 whose position is controlled
A traverse mechanism having a traverse section 17 interlocked with rotation means is provided near the winding bobbin 11.

Further, one continuous optical fiber 13 to be wound onto the winding bobbin 11 is pulled out from the unwinding bobbin 12 serving as a holding portion, and passed through the guide roller and the groove 18 of the traverse guide 15 to the winding bobbin 11. Supplied. Therefore, the optical transmission fiber supply means in this example is composed of the unwinding bobbin 12 and the guide roller.

On the other hand, between the unwinding bobbin 12 and the winding bobbin, an optical transmission fiber 13 drawn out from the unwinding bobbin 12 is provided.
A tension roller 14 is provided to adjust the tension.

The optical transmission fiber 13 used in the present invention is a single continuous fiber having desired optical properties, and a good winding has appropriate flexibility to realize operation. An optical transmission body that has the following properties is suitable. As such an optical transmission material, a plastic optical transmission fiber made of, for example, a copolymer of vinylidene fluoride and tetrafluoroethylene, polymethyl methacrylate, or the like is suitable. Further, the diameter of the optical transmission fiber 13 to be used may be appropriately selected depending on the desired configuration of the optical transmission array to be manufactured.

In addition, each component of the apparatus described above may be changed as appropriate to those having various configurations having similar functions. for example,
In this example, the winding bobbin 11 has an octagonal prism shape with eight plate member installation areas, but is not limited to this, and may have various polygonal shapes depending on the desired number of plate member installation areas. can be used.

Furthermore 1. In the example in E, the winding bobbin! l rotation means,
The means for winding the optical fiber 13 and the traverse mechanism constitute the winding means in the present invention. Various methods can be used as needed, such as a method in which the fiber is wound around a winding section by a guide that rotates around a fixed base.

Next, the main steps of the method of the present invention using the apparatus having such a configuration will be explained.

[Step (a)] First, the grooved plate member 9 having the configuration shown in FIG. 1 is placed on the polygonal winding bobbin 11 of the apparatus shown in FIGS.
10 faces 9a are provided on the peripheral wall surface facing outward,
In addition, the groove IO is removably fixed with bolts or the like so that the groove IO is perpendicular to the rotation axis of the winding bobbin 11 (center axis of the octagonal prism), and the winding of the optical transmission fiber 13 forms a surface. do.

Next, the optical fiber 13 is pulled out from the unwinding bobbin 12, and the optical fiber 13 is connected to the guide roller and tension roller 14.
and the groove 18 of the traverse guide 15 set at the winding start position (the position corresponding to the groove that initially supplies the optical transmission body).
Further, the end portion thereof is fixed to a portion of the plate member of the winding bobbin 11 corresponding to the winding start position. In this state, a suitable tension is applied to the optical transmission fiber 13 by the tension roller 14, and the tension can be controlled at a constant level by the tension roller during subsequent winding operations.

Here, the drive motor 16 is activated and the winding bobbin 1 is
1 in the direction of arrow A.

Then, the plate member 9 installed on the peripheral wall of the winding bobbin 11
The optical fiber 13 is supplied onto the groove at a position corresponding to the traverse guide 15, and is smoothly placed in the groove by the action of the tension applied by the tension roller 14, so that it follows the groove. It is wound there while being arranged correctly in the direction.

When the winding bobbin 11 has rotated once, the position of the traverse guide 15 is moved to a position corresponding to the next groove of the plate member 9, and the same operation is performed. Thereafter, each time the bobbin 11 goes around, the position of the traverse guide 15 is moved in the direction of the arrow B at a predetermined pitch (corresponding to a full 10 array), and the winding operation is performed in the same manner, as shown in FIG. As shown, the optical transmission bodies are sequentially supplied to the grooves and arranged. When the predetermined arrangement of the light transmitting bodies 13 on the plate members is obtained, the rotation of the winding bobbin 11 is stopped.

In addition, in this device, one outward path of the traverse guide 15 (
On the return trip), one more layer of optical transmission bodies can be formed on the plate member 9.

Therefore, in order to form a multi-layer winding of the optical transmitter array on the peripheral wall of the winding bobbin 11, such as the two-layer stack shown in FIG. Good.

In addition, in the case of this multi-layer winding, for example, as shown in FIG. He will fulfill his role. In other words, a new groove is formed by the optical transmission fibers adjacent to each other in the fiber row of the previous layer, and this groove acts as a guide, and by incorporating the optical transmission fiber forming the next layer into this groove,
Accurate bale stacking is achieved.

Furthermore, in order to perform multi-layer winding work more efficiently, a plurality of unwinding bobbins 12 are provided, and a number of optical transmission fibers equal to the required number of winding layers are supplied at once to the winding bobbin 11. It is also possible to wind it all at once. In this case, each optical transmission fiber to which a constant tension is applied enters a plurality of grooves provided in the traverse guide 15. The lowest layer, that is, the optical fiber that is wound first, is wound along the groove of the plate member 9 on the peripheral wall of the winding bobbin II, and then the second layer, the third layer, etc. are wound in parallel thereto. layer,·
...A roaring optical transmission fiber is wound up while using the previous layer fiber row formed just before as a guide.

[Step (b)] Next, the optical transmission fiber array formed on the grooved plate member 9 as described above and the plate member 9 are bonded together.

In the case of single-layer winding, this adhesion is performed between the plate member 9 and the Jisaka member 9.
After impregnating and filling the gap with the optical transmission body 13 above, or in the case of multi-layer winding, also the gap between the optical transmission body fibers 13 on the plate member 9, solidify the adhesive. Can be done. Note that the adhesive used here has relatively low viscosity, such as black soft epoxy resin, which can be sufficiently impregnated and filled into the gap between the plate member and the optical transmission body, or the gap between each optical transmission body. An adhesive having a certain level of viscosity may be used.

[Step (c)] When the adhesion between the optical transmitter array and the plate member 9 is completed as described above, the optical transmitter array is cut with a cutter or the like between the ends 9b of each plate member to form eight pieces. Further, each plate member is removed from the winding bobbin 11 to obtain a plate member 9 with an optical transmission body array.

Note that when the grooved plate members 9 are installed on all of the peripheral wall surfaces (eight sides) of the winding bobbin 11 as in this example, a total of eight plate members with optical transmission body arrays can be obtained at the same time. Can be done.

[Step (d)] Next, the plate member 9 with the optical transmission body array obtained in the above step (c)
(9-1), if necessary, as shown in FIG. 6, glue the intermediate member 7 to the end of the plate member 9-1
Another plate member 9-2 (with or without grooves) of the same size is adhered to fix the optical transmission body array between the two plate members 9-1 and 9-2.

As another method, as shown in FIG. 7, two plate members 9 (9-1a, 9-1b) with optical transmission bodies
It is adhered and fixed between the two plate members 9 via the optical transmission body array. In addition, when bonding the plate member 9 with optical transmitter arrays, the arrangement of the two optical transmitter arrays to be adhered at this stage is, for example, the optical transmitter array bonded to the plate member 9-1a in FIG. It is preferable to adjust the arrangement of the grooves of the grooved plate member used so as to correspond to the relationship between the array of light transmitting bodies and the array of light transmitting bodies bonded to the plate member 9-1b. Alternatively, depending on the case, plate members having the same groove arrangement may be used and the portions of the plate members protruding from the sides of the assembly may be cut.

Note that a low-viscosity adhesive may also be used to bond each member in this step.

Finally, the two surfaces on which the end faces of each optical transmission body are located are mirror-polished to complete the optical transmission body array. In addition, the adhesive fixation mentioned above is
This can be made more reliable by using a clamp or the like.

As described above, using the continuous fiber-like optical transmission body 13 of -tree, 1
The present invention has been described in the case where the fiber-like optical transmission body 13 is wound up by the rotation of the winding part.

〔Effect of the invention〕

As explained above, according to the present invention, the parallel arrangement of optical transmission bodies is achieved by fixing a grooved plate member to the peripheral wall of a polygonal base body to form a winding surface, and forming a winding surface on this winding surface. This can be done with a simple operation of winding the optical transmitters, and the grooves provided in the plate member act as guides to arrange the optical transmitters, so the arrangement of the optical transmitters is automatically determined by the grooves. ,
Optical transmission bodies can be arranged side by side with always high alignment accuracy and good workability.

In addition, it is possible to form a plurality of plate members with optical transmission body arrays at once,
The production efficiency of the optical transmitter array is greatly improved compared to the conventional method, and the quality of the optical transmitter array is also high-performance and stable.

〔Example〕

Hereinafter, the present invention will be further explained in detail with reference to Examples.

Example 1 An optical transmitter array was created in the following manner using the signatures of the prayers left in Figure 2 of the flute and Figure 3 of the Gamma Atsushi.

First, a copolymer (refractive index nI) consisting of 80 mol% vinylidene fluoride and 20 mol% tetrafluoroethylene was used.
00) 33 parts by weight, 33 parts by weight of polymethyl methacrylate (refractive index nD 1.492) obtained by continuous bulk polymerization, 33 parts by weight of methyl methacrylate monomer, 0.1 part by weight of benzyl dimethyl ketal, 0.1 part by weight of hydroquinone.
The weight part was heated to 80°C and passed through the cross wire part to a diameter of 2.
The extruded fiber was extruded from a 0 am nozzle, and the extruded fiber was heated to 80°C and nitrogen gas was heated at 10 mj/l1i.
After passing through the volatile part flowing at a speed of n in 8 minutes, the fiber was passed through the center of six 400W high-pressure mercury lamps installed at equal intervals in a circle and irradiated with light for about 5 minutes.
It was taken off with a nip roller at a speed of Il/win.

The diameter of the obtained fiber was 800 mm, and the refractive index distribution measured by an interfaco interference microscope was 1 at the center.
．． 460 and 1.451 at the periphery, decreasing continuously from the center to the periphery.

In addition, the results of compositional analysis of the obtained fiber by nuclear magnetic resonance spectroscopy (NMR) showed that the center portion contained 33% by weight of vinylidene fluoride and tetrafluoroethylene copolymer, and the peripheral portion contained 43% by weight. It was. The residual amount of methyl methacrylate monomer was 0.9% by weight overall. (Hereinafter, this will be referred to as a lens fiber.) Next,
This lens fiber was wound onto a rewinding bobbin and set in the apparatus shown in FIGS. 2 and 3.

Apart from this, an aluminum plate (326m+a x 35a
v+) is NC-processed to form 250 exactly parallel V-grooves that extend to the full extent of both ends in a direction perpendicular to the transverse direction and have a pitch equal to the diameter of the previously formed lens fiber. (2) A large number of grooved plate members were obtained.

The grooved plate member thus obtained was fixed with bolts to each circumferential wall surface of the winding bobbin in the positional relationship as described above, and the winding surface of the lens fiber was formed thereon.

Next, the lens fiber is pulled out from the unwinding bobbin, passed through a guide roller, a tension roller, and a traverse guide set at a position corresponding to the groove of the plate member that initially supplies the lens fiber. It was fixed to a portion of the plate member of the winding bobbin corresponding to the winding start position.

In this state, tension was applied to the lens fiber by a tension roller, and subsequent winding was controlled so that the tension remained constant during the operation.

Here, the drive motor was activated and the winding bobbin was rotated in the above-mentioned direction at a speed of 60 r, p, m, and the lens fiber was supplied to the first groove on the plate member to start winding. .

During this operation, the lens fibers were smoothly placed in the grooves due to the tension applied by the tension rollers, and were correctly aligned in the direction along the grooves.

Furthermore, each time the winding bobbin made one revolution, the position of the traverse guide was moved at a pitch corresponding to the arrangement of the grooves in the plate member, and the winding operation was continued.

When the lens fibers are arranged in the valley grooves on the plate member, that is, one layer of lens fiber rows is formed, the traverse guide is reversed, that is, the movement pitch is adjusted in the same manner as above in the opposite direction. The lens fibers constituting the second layer were further wound one after another between the adjacent lens fibers of the already formed first layer.

When two layers of winding were formed on the winding surface, the rotation of the winding bobbin was stopped.

Next, the lens fiber array (two-layer stack) formed on the grooved plate member in this way and the plate member are connected to the gap between the plate member and each lens fiber on the plate member and each lens on the plate member. The gap between the fibers is impregnated with black soft epoxy resin.
After filling, it was solidified and fixed with adhesive.

When the lens fiber array and the plate member have been bonded together in this way, the lens fiber array is cut with a cutter between the ends of each plate member to divide it into eight pieces, and each plate member is then wound into a winding bobbin. Eight plate members with cylindrical lens arrays were obtained.

Next, an intermediate member is glued to the end of the plate member with the lens array, and then another aluminum plate member of the same size as the plate member is glued with black soft epoxy resin, and the space between the two plate members is Two stacks of plastic lens arrays formed a sandwiched assembly.

Finally, the two surfaces on which the end surfaces of each lens of this assembly are located were mirror-finished to obtain a light transmitting body array.

When we inspected the quality of a large number of optical transmitter arrays obtained by repeating the above operations, we found that the lenses of each array were arranged side by side with good alignment accuracy according to the arrangement of the V-grooves formed in the plate member. The transmitter array is 6mm per 1mm.
When we incorporated it into an MTF measuring device that uses four slit images and evaluated its characteristics, we found that the transmitted images had good contrast and clarity, and good resolution characteristics were obtained for each optical transmitter array. Furthermore, light scattering around the lens periphery was also extremely small.

Example 2 First, a large number of two types of plate members having misaligned groove arrangements, such as plate members 9-1a and 9-1b shown in FIG. 7, were formed in the same manner as in Example 1, and Two types of plate members with lens fibers were obtained in the same manner as in Example 1, except that they were used separately and the lens fiber was wound in a single layer.

Next, the two types of plate members with lens fibers obtained in this way were adhered with black soft epoxy resin in the positional relationship shown in Figure 7, so that two layers of lens arrays were stacked between the two plate members. A sandwiched assembly was formed.

Finally, the two surfaces on which the end surfaces of each lens of this assembly are located were mirror-finished to obtain a light transmitting body array.

When the quality of a large number of optical transmission body arrays obtained by repeating the above operations was inspected in the same manner as in Example 1, it was found that the lenses of each array were arranged in accordance with the arrangement of the V-grooves formed in the plate member. They are well arranged in parallel, and each transmission body array is
When installed in a TF measuring device and evaluated its characteristics in three layers, it was found that for each optical transmitter array, the transmitted image had good contrast, was clear, and had good resolution characteristics. The light scattering in the area was also very small.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a plate member that can be used in the present invention;
FIG. 2 is a schematic diagram of the apparatus of the present invention for forming an optical transmission body array, FIG. 3 is an enlarged perspective view of the main part of the apparatus shown in FIG. 2, and FIGS. 4 and 5 are optical transmission body arrays. 6 and 7 are side views of the assembly showing step (d) of the method of the present invention, and FIGS. 8 to 10 show the main steps of the conventional method. FIG. 3 is a schematic diagram of the assembly seen from the side. 1: Grinding machine table 2: Surface plate 3: Vacuum chuck surface plate 4.4-1, 4-2: Plate members 4-1a, 4-2a
: Grinding surface 5: Grinding wheel 6: Workbench 7: Intermediate member 8: Cylindrical light transmitting body 9.9-1, 9-1a, 9-1b, 9-2 + Plate member 9a: Grooved surface 9b : Between the ends of the plate member lO
:Groove++: L take-up bobbin 12: Rewinding bobbin 13
°Fiber-like optical transmission body] 4゛Tension roller 15: Traverse guide 16: Drive motor 17:
Traverse part 18: Traverse guide groove

Claims (1)

[Scope of Claims] 1) In a method for manufacturing an optical transmission array by sandwiching an optical transmission array in which columnar optical transmission bodies are arranged side by side between two plate members, A plate member having a peripheral wall surface provided with a plurality of parallel grooves at a pitch equal to the diameter of the fiber-shaped optical transmission body, the surface with the grooves facing outward, and the grooves being aligned with the central axis of the polygonal prism shape. A winding surface is formed by removably fixed in a vertical direction, and one or several layers of fiber-shaped optical transmission bodies are wound around the winding surface using the groove as a guide to form an array of optical transmission bodies. a step (a) of forming the optical transmitter array on a plate member fixed to the peripheral wall surface of the base; a step (b) adhesively fixing the optical transmitter array to the plate member; and a step (b) of adhesively fixing the optical transmitter array to the plate member end. step (c) of cutting to form a plate member with an array of optical transmitters.
Then, adhere another plate member to the plate member with the optical transmitter array obtained in the step (c), or adhere two of the plate members with the optical transmitter array obtained in the step (c). and a step (d) of sandwiching an optical transmitter array between two plate members. 2) A plate member is provided with a plurality of parallel grooves at a pitch equal to the diameter of the fiber-shaped optical transmission body on its polygonal prism-shaped peripheral wall surface, and the surface with the grooves faces outward, and the grooves and the A base body that can be detachably fixed in a direction in which the central axis of the polygonal columnar part is perpendicular to the base body, and a grooved plate member is fixed to the peripheral wall of the base body, using a groove provided in the plate member as a guide. An apparatus used for manufacturing an optical transmission body array, which comprises a winding means for winding one or several layers of fiber-shaped optical transmission bodies. 3) a rotation means in which the winding means rotates the base body around a central axis of the polygonal column shape; and a light transmission body supply means for supplying a fiber-shaped light transmission body to be wound around the base body;
3. An apparatus used for manufacturing an optical transmission body array according to claim 2, further comprising a traverse mechanism for controlling the winding position of the fiber-shaped optical transmission body on the peripheral wall surface of the base body.