JPH039310A - Optical connector - Google Patents

Abstract

PURPOSE:To bring optical fibers into contact with each other with proper strength to connection and to obtain excellent optical coupling by providing sleeves so that they may be energized to respective optical connecting tools. CONSTITUTION:The 1st optical connecting tool I has plural light conductor cables 10 concentrecally with a projection 12a at spcified intervals and the 2nd optical connecting tool II has plural light conductor cables 20 concentrically with a hole 22a at specified intervals. Both optical connecting tools are disposed to be opposed to each other and have the sleeves 13 and 23 for holding the optical fibers in the center parts and springs 14 and 24 for energizing the sleeve 13 and 23 toward the connection end in the respective optical connecting tools. In such the case, when the projection 12a of the 1st optical connecting tool I is engaged with the hole 22a of the 2nd optical connecting tool II, the light receiving end of the 1st light conductor cable is allowed to butt against the light emitting end of the 2nd light conductor cable. Thus, the transmission loss of light is reduced and the light is effectively transmitted.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an optical connection device, more specifically, to transmit light from sunlight or an artificial light source collected by a solar collector provided at a height of 2 m, etc., through a light conductor cable. The light emitting end is guided indoors and fixed to a wall surface etc. indoors to form one optical connector, while indoors, one end is removably connected to an optical connector fixed to the wall surface etc. a light conductor cable having an optical connection and an optical radiator at the other end; when in use, the optical connector of the light guide cable is connected to the optical connection provided on the wall surface; This invention relates to an optical connector that emits light from a light distribution radiator for illumination and other purposes.

FIG. 6 is a block diagram for explaining an example of a sunlight collecting device previously proposed by the applicant. In the figure, 40 is a transparent protective capsule, and 41 is a nonel lens. , 42 is a lens holder, 43 is a sunlight direction sensor, 44 is an optical fiber in which a Fresnel 1 men's focal position L knee light receiving end is arranged, or an optical fiber cable (hereinafter referred to as a light conductor cable) consisting of multiple optical fibers, 45 is a light conductor cable boulder, 546 is an arm, 47 is a pulse motor, 48
is a horizontal rotation shaft rotated by the pulse motor 47; 49 is a base for mounting the protective capsule 40;
50 is a pulse motor; 5]- is a vertical rotating shaft rotated by the pulse motor 50; the sunlight collecting device detects the direction of the sun with a sunlight direction sensor 43, and uses the detection signal to determine the direction of the sunlight; The pulse motors 47 and 50 of the horizontal rotation axis 48 and the vertical rotation axis 51 are respectively driven so that the sensor 43 faces the direction of the sun, so that the sunlight focused on each lens 41 is directed to each lens. The light is introduced into a light guide cable 44 whose light receiving end is disposed at the focal point of the light beam. The solar light is bundled together with a light guide cable 44 arranged for each lens and led out from the solar collector, guided to any desired location, and used for various purposes such as illumination, cultivation of animals and plants, sunbathing, etc. Ru.

FIG. 7 is a diagram for explaining details for introducing sunlight collected by the lens 41 into the optical conductor cable, and in the figure, 41 is a lens corresponding to the Fresnel lens shown in FIG. 4. , 44 is a light guide cable for introducing sunlight focused by the lens 41 and transmitting the introduced large intestine light to any desired location.
When focused by the Men's system, the sun's image will have almost white light in the center, and the periphery will contain many light components with wavelengths that match the focal position. That is, when sunlight is focused by a lens system, the position of the fish point and the size of the solar image vary depending on the wavelength of the light 6 For example,
Blue light with a short wavelength creates a solar image with a diameter D1 at the position Pl, green light creates a solar image with a diameter D2 at the position P2, and red light creates a solar image with a diameter D2 at the position P. Connect the image of the sun. Therefore, in the case shown in the figure, if the light-receiving end face of the optical conductor cable is placed at the position Pl, it is possible to collect sunlight containing a large amount of blue components and light at the periphery, and at the position P, [
If you place it in this position, you can collect sunlight that contains a lot of green light components in the periphery, and if you place it in position P, you can collect sunlight that contains a lot of red light components in the periphery. ,
At that time, the diameter of the optical conductor cable can be set according to the light component to be collected, for example, Dl for blue system, D2 for green system, and D3 for red system. It is possible to most efficiently collect sunlight containing a large amount of desired light components by reducing the amount of scenery.

Further, as shown in the figure, the diameter of the light-receiving end face of the optical conductor cable 44 is increased. It is also possible to collect light containing all wavelength components. Note that when aligning the light-receiving end face of the optical conductor cable 44 with the focal position of the lens system, the socket end face may be fixed at the focal position in advance at the production factory, or the socket end face of the optical conductor cable 44 may be fixed at the focal position in advance. The lens system may be made adjustable in the optical axis direction, and the user may adjust and fix it in accordance with the desired color of light. As mentioned above, when sunlight is focused by a lens system, the center of the solar image is white light, but the light at the periphery varies depending on the distance from the lens, and when it is close to the lens, it is blue light. When the light is far away, it becomes red-ish light, and by adjusting the position of the light receiving end, infrared and ultraviolet rays can be removed, making it possible to obtain light that is effective for sunbathing and growing plants and animals.

Therefore, a solar power collection device as described above is installed on the rooftop,
It is conceivable that the collected sunlight can be passed through a light conductor cable into a room and used for sunbathing, cultivating ornamental plants, raising tropical fish, etc. In that case, the conductor cable led from the solar light collecting device The light emitting end of is fixed to the wall of the room to constitute one optical connector of the optical connector, and the other,
Indoors, prepare and use an optical conductor cable that has a connector at one end that can be detachably connected to the optical connector installed on the wall surface and a light emitting end at the other end. Time,
If the optical conductor cable is used by connecting it to an optical connector provided on a wall surface as described above, it is very effective especially when the present device is installed in a building or the like. In other words, when constructing a building, construction proceeds from the lower floors, but in that case, taking into account the height of the building, etc., everything from the optical connectors installed on the wall to the solar collection device will be adjusted. Calculate the distance, prepare in advance a light guide cable with a length corresponding to the distance, connect the optical connector on the light emitting end to the tip of this light guide cable, and place it at the desired position on the wall in the room. After that, the optical conductor cable can be extended every time a room above the room in which the optical connection device is installed is expanded. By arranging optical connectors on the walls of the building and extending the optical conductor cable as construction work progresses, it becomes possible to install the device according to the present invention almost simultaneously with the completion of the construction work.

FIG. 8 is a perspective view for explaining an example of the case where sunlight collected by the above-mentioned solar light collecting device is guided into a room, and in the figure, 60 is the above-mentioned solar light collecting device. A light conductor cable (a light conductor cable used by being connected to the light conductor cable 44 shown in FIG. 6) through which the sunlight collected by is transmitted, 61 is a light irradiation stand, and the light irradiation stand 61 is , a fixed base 62, a movable base 63 movable in the direction of the arrow with respect to the fixed base,
One or more deformable flexible conduits 64 erected on the movable base 63, and a support attached to the tip of the conduit 64 to detachably support the optical conductor cable 60. When in use, the tip of the light guide cable 60 is supported by the support member 65, and the conduit 64 is deformed into any desired shape to direct the light emitted from the light guide cable 60 in a desired direction. When in use, the light-receiving end (not shown) of the optical conductor cable 60 is connected to an optical connector disposed on the wall of the room as described above.

The present invention was made in view of the above-mentioned circumstances.
In particular, one terminal of an optical connector is formed by fixing the light emitting end of a light conductor cable guided from a solar light collection device installed on a rooftop or the like to the wall of a room, and the light conductor cable is connected to the terminal within the room. The object of this invention is to provide an optical connector that connects the two terminals and makes it possible to utilize the light emitted from the other terminal of the guide cable.

Figures 1 to 5 are configuration diagrams for explaining an embodiment of the present invention, and in the figures, I is indicated in the 8th section. installed optical fittings,
3 is an optical connection tool C installed at the end (not shown) of the light guide cable 44 shown in Figure 3;
is detachably connected to the optical connector (i) as described below.

In FIG. 1,] O is a leading five-piece cable corresponding to the optical conductor cable 60 shown in FIG. 8, 20 is an optical conductor cable corresponding to the optical conductor cable 44 shown in FIG.
．． 21 is the outer frame, 12.22 is the setting block, 13
．． 23 is a sleeve for holding the optical conductor cable;
14.24 is spring, 15.1G, 25 is bag oak l
-5]'7゜27 is a cap, 18.28 is a wire, chain or other string member for fixing the cap to the optical connector. 21
It is fixed by screwing or the like through screw holes 211) which are numbered in the flange portion 21a. A fitting protrusion 12a is provided at the center of the setting block 12 of the optical connector I, and a positioning pin 12F) is provided near the protrusion 12a. has a fitting hole 22 into which the protrusion IW 12a is inserted.
A is provided near the child, and a positioning pin hole 22 (1) into which the front cloth shibin]-2b is inserted is provided in the vicinity of the child. View from the line direction, 2nd
1(B) is a view seen from the direction of line B-/B in Fig. 1,
In the case shown, there are two bottles 121) and six pin holes 22c+.
After counting the pieces, insert the protrusion 12a into the hole 228, and
2b to pin hole 22d I: Align and push further,
The optical connector I and +1 light guide cable pull are concentrically connected.
The light transmitted through the light guide cable 203 is transmitted to the light guide cable J, 0, and is connected to the light guide cable 203 in the room as shown in FIG. served.

FIG. 3 shows an exploded view of the optical connector 1N shown in FIG. 1. As mentioned above, 2] is an outer frame, 22 is a seso-tengoku block, 23 is a sleeve, and 24 is a spring.

25 is a bag nut, but the evening that falls on the optical connector ■ (frame 1
], setting block 1-2. Sleeve J3, spring]-4, and cap 15 also function in substantially the same way as these, and optical connector I can be understood by explaining optical connector 11, so
A description of the optical connector I will be omitted. Then, evening I
As mentioned above, the frame 2J- includes a flange portion 21-a for attachment to a wall surface and the flange portion 2j-a&:,
The provided opening has a screw hole 21-b for
A screw 21d is provided on the circumferential surface of the portion that protrudes from the wall surface, and after the optical connection I is joined to the optical connector IN as described above, the cap nut of the optical connector I is attached. By screwing the screw i6a of ]-6 into the screw 2]-d and tightening it, the optical connection I can be firmly joined to the optical connection H.

A setting block 22 is inserted inside the wall of the outer frame 21, and the insertion position of this setting block 22 is at a step 22c provided on the outer periphery of the setting block 22.
The rotation of the cenoteng block 22 is regulated by the engagement of the step part 2]-f provided on the inner circumferential surface of the outer frame, and the rotation of the cenoteng block 22 is regulated by the engagement of the stepped part 2]-f provided on the inner circumferential surface of the outer frame. It is regulated by the service provided. This setting block 22 includes a setting block 1 for both optical connections.
A hole 22a into which the protrusion 2a is inserted and a hole 22d into which the positioning bottle 12N provided in the setting block 12 is inserted, 11, and
A hole 22b through which the sleeve 23 is inserted is provided. The sleeve 23 accurately positions and holds the light emitting end side of the light guide couple 20 with an adhesive or the like, and has a hole 23a at its tip. When joined in this way, the hole 23a
The distal end 13 a of the sleeve 13 on the side of the optical connector I is inserted, and the distal end surface 20 a of the optical conductor cable 20 and the distal end surface 10 a of the optical conductive cable 10 are accurately positioned and come to face each other. A collar 23b is provided on the outer periphery of the sleeve 23. One surface 23e of this collar 23b engages with a step 22c provided on the inner peripheral surface of the through hole 22b of the setting block 22, and the sleeve 23
The insertion depth when inserted into the hole 221) is accurately regulated.

At the same time, the other surface 23d of this collar 23b forms a seat for the subring 24. 25 is the spring 24
The other receiver is a seat, and this receiver is a seat 25 as shown in FIGS. 4 and 5.
As shown in the figure, it consists of an inner flat plate-like member 25□ and an outer ring-like member 25□, which work together to allow the optical conductor cable 20 to pass through as shown in FIG. A hole 25a is formed.

FIG. 4 is a diagram for explaining the flat plate member 251, (A) is a plan view of the flat plate member 25, (B)
The figure is a sectional view taken along the line 'b-b' of figure (A), and as shown in the figure,
Six cutout semicircles 251a forming the inner semicircle of the hole 25a are formed at equal intervals (606 intervals) on the outer periphery of the flat member 25□.

FIG. 5 is a diagram for explaining the outer ring-shaped member 252, in which (A) is a plan view, and (B) is b of (A).
-bIiA sectional view, the ring-shaped member 25□ has a relatively large through hole 252b in the center, and the front side has a diameter equal to the diameter of the flat plate-shaped member 251 and a depth equal to the thickness T. A cutout step 252c is formed, and the cutout step 2
52C, when the flat plate member 251 is inserted into the flat plate member 25. and the surface 25 of the ring-shaped member 252
2d are formed on the same plane. This side 2
5□d is a semicircle 25□a provided on the flat member 251.
the other semicircle 2 forming the circular hole 25a in cooperation with
5□a is formed, and this semicircle 25□a communicates with a through hole 252b provided in the center through a notch 25□e having a cut width approximately equal to the diameter of the semicircle. Therefore, when the flat plate member 251 is fitted into the ring member 252, the notch semicircle 251a and 25□a cooperate to form the hole 25a through which the optical conductor cable 20 is inserted. The uke can form a za. Note that this flat plate member 25. and ring-shaped member 25□
For example, the alignment and rotation of the flat member 25□
This can be done by engaging the protrusions 25, b provided on the outer circumference of the ring-shaped member 25□ with the recess 25f provided in the ring-shaped member 25□. The cap nut 26 has a screw 26a on its inner circumferential surface that engages with a screw 21e provided on the outer circumference of the outer frame 21, and a relatively large hole 26 in the center.
b is provided. Therefore, in assembling work, the sleeve 23 is first attached to the tip of the optical conductor cable 20 with adhesive or the like as shown in the figure, but the end treatment work of this optical conductor cable must be done in advance at the production factory or the like. There is.

At the construction site, first pass the optical conductor cable 20 through the hole 26b of the cap nut 26, then pass the optical conductor cable 20 through the hole 252b of the ring-shaped member 252, and then pass the optical conductor cable 20 through the hole 252b of the ring-shaped member 252. Missing 25.
a and a semicircular notch in the ring-shaped member 25. a to form a hole 25a, and the flat member 251 is inserted into the ring-shaped member 252 so that the optical conductor cable 2o is inserted through the hole 25a.
As shown in Figure 3, each optical conductor cable is
Pass through hole 25a. Next, while rotating the spring 24, the collar portion 23b of the sleeve 23 is passed through to the state shown in the figure, and then the sleeve 23 is moved to the setting block 22.
The outer frame 21 is placed on the setting block 22, and the screw 26a of the cap nut 26 is screwed into the screw 21e of the outer frame 21 and tightened.
These members 21 to 26 are integrally constructed as shown in FIG.

Above, we have explained the optical connector■, but the optical connector■
can be assembled in substantially the same way.

Therefore, this optical connector (2) further includes a cap nut 16, and the screw 16a of this cap nut 16 connects to the optical connector (2).
Therefore, after connecting the optical connector I to the optical connector ■ as described above,
Tighten the cap nut 16 to firmly connect the optical connectors I and (2).

In FIG. 1, a cap 17 is used to protect the end of the optical connector I when not in use.
It has a hole for engaging with the projection 12a of the optical connector l, a hole 17b for engaging with the positioning pin 12b, and a screw 17d for engaging with the screw 16a of the cap nut 16, By screwing the screw 16a of the cap nut 16 into the screw 17d and tightening, the cap 17 can be attached to the optical connector. Similarly, gap 27 is also
By screwing and tightening the screw 27a with the screw 21d of the optical connector 11, the cap blind 27 can be removed from the optical connector 11. These caps 17.27
are connected to JJN and IN through optical connections using wire chains, respectively, to prevent loss. In addition,
In the explanation below, the protrusion 1.2a and the hole 22a,]
,, 2)) and 2.2. The relationship between d, 25, b and 25□f may be reversed.

Of course, as is clear from the above explanation, according to the present invention, each optical connector is provided with a sleeve biased against it, so that the optical fibers are not connected to each other. The effect is that a suitable amount of force is applied to the contact and good optical coupling can be achieved.

In addition, during on-site work, it is possible to accurately position each part, which not only makes on-site work easier, but also reduces light transmission loss and enables efficient light transmission. I can do it.

[Brief explanation of drawings]

3 to 5 are diagrams for explaining one embodiment of the present invention, and FIG. 1 is a diagram showing the state before connection, and FIG. 2 (A
) is a view seen from the A-A line force direction in Figure 1, and Figure 2 (B
) is the same as seen from the B-B line direction, FIG. J
:, shown in Figure 1. In addition, detailed drawings of the Suburi and Nogu Uke seats,
Figure 6 is a diagram for explaining an example of the solar light multi-vessel device previously proposed by the applicant, and Figure 7 is for explaining the operating principle for introducing light into the optical conductor cable. diagram for,
The 8th fsl shows an example of how sunlight is used in a room.
0...Light guide cable/pull, 11.2]-...Outer frame,
l-2, 22...Sedeshikub 1-Kotori, 13.2
3... Sleeve, 14, 2.4... Spring, j,
5,16.25...Bag Nara] -117°27...Cap. Figure 4 (A) (B) Figure 6

Claims (1)

[Claims] 1. A first light guide cable attached to the light receiving end of the first light guide cable.
and a second optical connector connected to a light emitting end of a second optical conductor cable, the first optical connector and the second optical connector are connected to an optical connector for transmitting light from a second optical conductor cable to which an optical connector is attached to a first optical conductor cable to which the first optical connector is attached; The optical connector has a protrusion (or hole) in the center, the second optical connector has a hole in the center into which the protrusion is inserted (or a protrusion to be inserted into the hole), and The first optical connector has a plurality of the first optical conductor cables concentrically with the projection (or hole) and spaced apart from each other by a predetermined distance, and the second optical connector has the plurality of first optical conductor cables concentrically with the projection (or hole), and the second optical connector has a plurality of the first optical conductor cables concentrically with the projection (or hole). It has a plurality of said second optical conductor cables concentrically spaced apart from each other at predetermined intervals, and both said optical connectors include a sleeve that is arranged at positions facing each other and holds an optical fiber in the center. , a spring biasing the sleeve toward the connection end is included in each of the optical connectors, and the protrusion (or hole) of the first optical connector and the hole of the second optical connector 1. An optical connector characterized in that, when engaged with a protrusion, a light receiving end of the first optical conductor cable and a light emitting end of the second optical conductor cable are balanced. 2. The optical connectors are configured such that the opposing sleeves are fitted at their distal ends and the end surfaces of the optical conductor cables are in contact with each other. Optical connector listed. 3. The first optical connector has a positioning protrusion (or hole) extending in the same direction as the protrusion (or hole), and the second optical connector has the positioning protrusion inserted into it. 3. The optical connector according to claim 1, further comprising a positioning hole (or a projection inserted into the hole). 4. The first optical connector has an axially movable and rotatable cap nut on its outer periphery, and the second optical connector has a screw on its outer periphery that is screwed into the cap nut. The optical connector is characterized in that the first optical connector and the second optical connector are connected by tightening the cap nut onto the screw. 5. A cap member that is screwed onto the cap nut of the first optical connector and has a hole for accommodating the projection;
5. The optical connector according to claim 4, wherein the optical connector is provided integrally with an optical connector. 6. An optical connector characterized in that a blind cap screwed onto the screw of the second optical connector is integrally provided with the second optical connector.