JPH0714404U - Rope-shaped luminescent material - Google Patents

Abstract

(57) [Abstract] [Purpose] As a light emitting material that uses optical fibers, it is possible to emit light in a wide and wide range with a small number of fibers, while keeping the texture of the optical fibers as fibers without covering the circumference of the optical fibers with a coating layer or the like. And reduce the number of optical fiber leads from the light source to the light emitting part,
(EN) The treatment of an optical fiber in the lead portion is facilitated, and the number of optical fibers facing the light source is reduced so that a small light source can be used. [Structure] Lead portion 3 for transmitting light incident from end portion 2
And a light emitting portion 4 which emits light by transmitting transmitted light. The lead portion 3 is composed of an optical fiber A. The light emitting portion 4 following the lead portion 3 has optical transparency to the optical fiber A continuous from the lead portion 3. The lower twisted portion 5 is formed by twisting fibers or threads into a dummy B, and the lower twisted portion 5 is further formed.
It is constructed by twisting a plurality of sets and twisting them.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a light emitting material using an optical fiber, and the light emitting material is used for various light emitting decoration devices, displays and the like.

[0002]

[Prior art]

 Conventionally, when an optical fiber is used as a light emitting material, light is incident from one end of the optical fiber, and the incident light is transmitted through the optical fiber and emitted from the other end to cause the end portion of the optical fiber to emit light. It was a thing. However, in the case where the light entering from one end of the optical fiber is emitted from the other end as described above, the light emitting portion is a point. There is a problem that it requires an optical fiber. Therefore, the side surface of the optical fiber is scratched so that light is leaked from this side, or the optical fiber is coiled as disclosed in, for example, JP-A-62-125202 and JP-A-63-61206. It is known that a bent part is formed to have light leakage. Further, the inventor of the present application also forms a decorative portion that emits light by bending or bending an optical fiber using a macrame knot, as shown in Japanese Utility Model Publication Nos. 1-64498 and 1-137299. The following decoration device is proposed. Furthermore, in Japanese Utility Model Laid-Open No. 63-80504, a light emitting rope in which the circumference of the rope is covered with an optical fiber in a twisted shape, and the circumference of the rope is covered with a transparent material having flexibility is also disclosed. No. 108007 discloses a leaky optical fiber cable in which optical fibers are twisted around a tension member.

However, when the side surface of the optical fiber is scratched and the light is leaked from here as described above, not only is it troublesome work to damage the optical fiber, but also the optical fiber which is going to leak the light. It is technically difficult to evenly scratch the fiber over a predetermined length, and not only may the optical fiber itself be damaged during work, but there is also a problem with the strength of the finished product. In this respect, when light is leaked from the bent portion of the optical fiber by forming the optical fiber into a coil or using a knot, there is no problem as in the case of damaging the optical fiber. However, there is a limit to the thickness of the optical fiber itself, and even if the optical fiber is bent to leak light from the side, a large number of optical fibers are required to emit light in a wide range. Therefore, the number of fibers in the lead portion from the end portion of the optical fiber desired to the light source to the bent light leakage portion is increased, which not only makes the processing very troublesome but also the number of optical fibers desired to the light source. Often requires a large light source. Further, in the case where the transparent material is covered around the optical fiber as described in JP-A-63-80504 and JP-A-2-108007, the light emitting portion itself is different from the number of optical fibers used. Although it grows in size, the surroundings of the optical fiber are covered with a coating material, and the texture of the optical fiber as a fiber is impaired, and there is no intention to use a fibrous optical fiber as a light emitting material.

[0004]

[Problems to be solved by the device]

 Therefore, the first object of the present invention completed in view of the above points is to make use of the texture as a fiber of an optical fiber as a light emitting material using an optical fiber, without covering the periphery of the optical fiber with a coating layer or the like. It is still another object of the present invention to provide a light emitting material that can emit light in a wide range over a wide range with a small number. Further, a second object of the present invention is to reduce the number of optical fiber leads from the light source to the light emitting section, thereby facilitating the processing of the optical fibers in the leads and reducing the number of optical fibers facing the light source. By doing so, it is to provide a light emitting material that can use a small light source.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, a light emitting material using an optical fiber according to the present invention is formed by twisting fibers having optical transparency in a part of a length direction of the optical fiber to form a lower twisted portion and further forming a lower twisted portion. It is a rope-shaped light emitting material that is formed by twisting twisted parts together to form a light emitting part.

[0006]

[Action]

 Since the rope-shaped light emitting material according to the present invention is configured as described above, when light is incident from the end of the optical fiber forming the rope-shaped light emitting material, the light transmitted through the optical fiber is transmitted through the optical fiber. Light is leaked from the side of the optical fiber of the bent light emitting part by being twisted with other fibers. This light emitting section emits light in a wide and wide range by not only the optical fiber that leaks light as described above, but also other fibers twisted with the fiber, thread-like fibers, etc., which become dummy and emit light together with the optical fiber.

[0007]

【Example】

 Hereinafter, the rope-shaped light emitting device according to the present invention will be described in more detail with reference to the accompanying drawings. FIG. 1 is a perspective view showing an example of a rope-shaped light emitting material 1 according to the present invention. The rope-shaped luminescent material 1 is composed of a lead portion 3 for transmitting the light incident from the end portion 2 and a light emitting portion 4 for emitting light when the light transmitted by the lead portion 3 leaks. . The lead portion 3 is composed of a plastic optical fiber A such as polymethylmethacrylate resin. Next, as shown in FIG. 2, the light emitting portion 4 following the lead portion 3 is formed by twisting the optical fiber A continuous from the lead portion 3 with a fiber or thread B having light transparency as a dummy to form a lower twist portion. 5 is further formed, and a plurality of sets of the lower twisted portions 5 are twisted together and twisted to form an upper twist.

As the optical fiber A constituting the lead portion 3 of the rope-shaped light emitting body 1 and the light emitting portion 4 following the lead portion 3, a plastic optical fiber such as an acrylic optical fiber such as polymethylmethacrylate resin can be used. . The thickness of the optical fiber A has a diameter of about 0.25 to 3.00 mm, usually 0.5 to 0. An optical fiber having a thickness of about 75 mm is used, but the optical fiber having various thicknesses can be selected according to the application without being limited thereto. On the other hand, other fibers or filaments B which are twisted with each other as the dummy of the optical fiber A and constitute the light emitting portion 4 as described above can transmit the light leaking from the optical fiber A and emit it together with the optical fiber A. Anything will do. As the material of the dummy, for example, so-called Tugsu, nylon, other plastic fibers, transparent tube, transparent tape, etc. can be used. Furthermore, in some cases, the light emitting section 4 can be configured by twisting together the same type of optical fiber as the optical fiber A forming the lead section 3. Further, the number of twists of the optical fiber A and other fibers as a dummy or the thread B is not particularly limited, but in the usual case, the ratio of the lower twist and the upper twist is about 2: 1 to 1: 1. It is good to say The twisting of the optical fiber A and the other dummy fibers B as described above can be performed by using an ordinary yarn twisting machine, but when twisting is difficult due to the material and thickness of the optical fibers A and the dummy B It is advisable to apply a twist while heating lightly.

The following Table 1 shows an example of the number of twists of the optical fiber A in the rope-shaped light emitting device 1 of the present invention and another fiber or thread as a dummy. Here, an acrylic plastic optical fiber was used as the optical fiber A, and a nylon gut having a diameter of 0.3 mm was used as the dummy B. The lower twist is three optical fibers and four Tegus are twisted together, and the upper twist is three twisted lower twists.

[0010]

[Table 1] Diameter of optical fiber Length of light emitting part Number of times of lower twist Number of times of upper twist (mm) (cm) 0.50 50 30 15 15 0.50 100 60 60 30 0.75 50 24 24 12 0.75 100 48 48 24 1.00 50 168 1.00 100 30 16

The rope-shaped light emitting device 1 according to the present invention as described above is transmitted through the optical fiber A of the lead portion 3 when the light of the light source enters from the end portion of the optical fiber A forming the lead portion 3. The emitted light leaks from the side surface of the optical fiber A of the curved light emitting portion by being twisted with another fiber or thread B as a dummy. The light leaked from the side surface of the optical fiber A causes not only the optical fiber A but also the dummy fiber B twisted with the optical fiber A to emit light, so that the diameter of the light emitting portion is large and a wide range can be emitted. it can. Moreover, the light emitting section 4 may be formed by twisting other fibers or the like as a dummy in only the portion that needs to emit light, and the number of the optical fibers A other than the light emitting section 4 can be small, so that the wiring process can be performed. It's easy. In addition, by twisting the optical fiber A and the dummy B undertwisted further, the twisting of the optical fiber is prevented from returning and the optical fiber A in the light emitting section 4 is kept in a constant bent state. Therefore, stable light emission can be obtained. Further, the optical fiber A of the light emitting section 4 is not only reinforced by being twisted with other fibers B as a dummy and is less likely to be damaged, but also the entire light emitting section 4 is flexible, and the light emitting section 4 is It is also easy to work when embellishing a plate material in the shape of embroidery or processing using macrame knitting.

In the above case, the lead portion 3 may be provided only at one end of the rope-shaped light emitting body 1 as shown in FIG. 4, and the light of the light source 6 may be incident from there. As shown in FIG. 5, both ends 2 and 2 are twisted together with another dummy fiber B in the middle portion of the optical fiber A which the light source 6 is desired to have, and the lead portions 3 and 3 are provided on both sides of the light emitting portion 4. Alternatively, light may be incident from both ends 2 and 2.

The rope-shaped light emitting device 1 according to the present invention as described above is used as a light emitting part of a lighting device, decoration of clothes such as a wedding dress, a wig, a display of a lighting advertisement, a sign and the like. be able to. Further, since the lead portion 3 and the light emitting portion 4 of the rope-shaped luminous body 1 using this optical fiber are composed of the plastic optical fiber A and the dummy B, there is no fear of electric leakage and excellent water resistance. It can also be used for underwater decorations. Further, the rope-shaped luminous body 1 can also be used by incorporating it into a building material or the like.

FIG. 6 shows an example of the usage of the above-mentioned rope-shaped luminous body 1, and an example of creating a wig-shaped luminous decoration device using the rope-shaped luminous body 1. It is shown. This uses a plurality of rope-shaped light emitting bodies 1 to form a hair portion by a light emitting portion 4, and a head portion is provided with a decoration 8 using a conventional macrame knot. As described above, when the light emitting decoration device is constructed by using the rope-shaped light emitting body 1 according to the present invention, the light emitting portion 4 is formed by twisting the optical fiber A and another fiber or thread B as a dummy. In spite of the large diameter and the ability to emit light over a wide range, the number of optical fibers A in the lead portion 3 is small, wiring processing of the lead portion 3 is easy, and the end of the lead portion 3 is easy. The light source 6 for injecting light into the section may be small in size, and is compact as a whole and very easy to handle.

As described above, in the present invention, the light-transmitting fiber or thread is used as the dummy B to be twisted with the optical fiber A of the light-emitting section 4, but other fibers or thread are twisted at the same time. It does not exclude matching. For example, a light-reflecting fiber such as a metal wire or lame yarn can be twisted together with an optical fiber. In this case, the light leaked from the bent portion of the optical fiber twisted together with the dummy in the light emitting section 4 is reflected by these light reflective fibers, which is different from the case where the light transmissive fibers are twisted together. It can be used as a light emitting unit of taste. Further, the light-transmitting or light-reflecting fibers or the like as these dummies may be colored.

[0016]

[Effect of device]

 As described above, the rope-shaped light-emitting material according to the present invention has a lower twisted portion formed by twisting a fiber or a thread having a light-transmitting property as a dummy and forming a lower twisted portion at one portion in the length direction of the optical fiber. Since the twisted parts are twisted together to form a light emitting part, the light incident from the end of the optical fiber forming this rope-shaped light emitting material is transmitted through the optical fiber and twisted together with other fibers etc. The light leaking from the light emitting part and the light leaking from the side surface of the optical fiber transmits not only the optical fiber but also other dummy fibers twisted with the optical fiber to cause these dummy fibers to emit light. It has a large overall diameter and can emit light over a wide range. In addition, by twisting other fibers only in a part of the optical fiber, for example, only the necessary part excluding the lead part facing the light source, to form the light emitting part, the total number of fibers in the light emitting part is large and the diameter is large. Although it is thick and can emit light over a wide range, the number of fibers in the lead portion is small and wiring processing is easy, and at the same time, the light source can be made small. Moreover, in the light emitting part, the optical fiber is reinforced by being twisted with other dummy fibers, so that the light emitting part itself can be easily bent or bent by using a knot or the like. Therefore, the light emitting portion can be made to emit light more brightly.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a rope-shaped luminous body according to the present invention.

FIG. 2 is an exploded perspective view showing a method of forming a light emitting portion in a rope-shaped light emitting body.

FIG. 3 is an enlarged perspective view of the light emitting unit.

FIG. 4 is a simplified front view of an example of a rope-shaped luminous body in a use state.

FIG. 5 is a simplified front view of another example of the rope-shaped luminous body in a use state.

FIG. 6 is a perspective view of a wig produced by using the rope-shaped luminous body according to the present invention.

[Explanation of symbols]

 A Optical fiber B Dummy fiber 1 Rope-shaped light emitter 2 End part 3 Lead part 4 Light emitting part 5 Lower twisted part 6 Light source

Claims (1)

[Scope of utility model registration request] 1. A rope-shaped light emitting material in which a fiber having optical transparency is twisted together to form a lower twist portion in a part of a length direction of an optical fiber, and a plurality of sets of lower twist portions are twisted together to form a light emitting portion. .