JPH0670664A - Illuminating device for catching marine product - Google Patents

Abstract

PURPOSE:To obtain an illuminating device for catching marine products enabling use in sea water, water, etc., namely, enabling application to wide fields. CONSTITUTION:The illumination device is constituted so as to emit light having a wavelength which fishes such as fish shrimp or crab to be caught like is emitted from a light source 1, guide the emitted light through a light transmitting hose 2 to the catching means such as fish attraction lamp, fishing net or fishing line or to the vicinity of this catching means and emit and scatter the light from a light scattering means 3. Thereby, light having required wavelength is surely emitted even into water or sea water and marine products can efficiently be caught.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trapping illuminating device which emits light having a wavelength preferred by fish, shrimp, crabs and the like (hereinafter referred to as traps) and attracts the traps nearby.

[0002]

2. Description of the Related Art Heretofore, it has been practiced to collect and catch fish by utilizing the habit of approaching to bright light at night. ing.

[0003]

By the way, such a method utilizing light is attractive to fish and the like and can obtain a good effect, but since it requires electrical insulation, There are restrictions on where it can be used, and it is difficult to use it, for example, under the sea. Also, for example, at sea,
There is also a possibility that a connecting portion such as an electric light may be covered with seawater to cause a short circuit, or a metal portion may generate rust or the like to cause a defective connection or be corroded. Therefore, in view of the above-mentioned conventional drawbacks, the present invention has an object to provide a lighting device for catching marine products, which can be used in the sea, underwater, etc., in other words, can be applied to a wide range of fields. It is a thing.

[0004]

[Means for Solving the Problems] That is, the present invention provides a light source that emits light of a wavelength that is preferred by organisms such as fish, shrimp, and crabs to be caught, and a viscous liquid, solid, or gel core. An optical transmission hose having a refractive index smaller than that of the core and having flexibility, and a cylindrical clad enclosing the core, which transmits the light emitted from the light source, a fishing light, The light emitting device is attached to a catching means such as a fishing net or a fishing line, or is provided in the vicinity of the catching means, and includes a light emitting means for irradiating / scattering the light transmitted from the optical transmission hose.

[0005]

According to the present invention, light having a wavelength preferred by a catch such as a fish, shrimp, or crab to be caught is emitted from a light source, and the emitted light is collected through a light transmission hose, a fishing net, a fishing net, a fishing line, etc. The light is guided to the capture means or near the capture means, and emitted / diffused from the light diffusing means, which ensures that the light of the required wavelength is efficiently emitted even underwater or in the sea. You can attract and capture marine products.

[0006]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows an illuminating device according to the present invention. The illuminating device comprises a light source 1, a light transmission hose 2 and a light emitting means 3, and is used as illumination for a squid fishing boat. . In addition, the code | symbol 4 in a figure shows a fishing net. The light source 1 emits light in a specific wavelength range including a desired wavelength to be captured. In this embodiment, an incandescent lamp 11 as shown in FIG. 2 is used. The light source 1 includes a concave mirror 12 and a condenser lens 13 in a light house (not shown) in order to efficiently collect the emitted light and guide it to the light transmission hose 2.

In the optical transmission hose 2, as shown in FIG. 3, a core 21 made of a viscous liquid is filled in a polymer clad 22 processed into a flexible pipe shape to form a clad 22.
Both ends of are sealed with transparent windows 23. By using the cladding 22 having a refractive index lower than that of the core 21, total reflection of light occurs at the interface between the two, and the light incident from one end is transmitted to the other end by repeating this total reflection. . Examples of the core 21 include polyols such as polyethylene oxide, polypropylene oxide and glycerin, polyol esters, polyol ethers, phosphoric acid esters such as chloroethyl phosphate and trioctyl phosphate, liquid paraffin, fluorine oil,
Silicon oil, polyisobutylene, polysiloxane modified polyether, an aqueous solution of an inorganic salt, a polymer solution obtained by diluting a polymer with an appropriate solvent, or the like is used. Here, as the material for forming the hollow tubular clad 22, it is preferable to use a flexible material such as plastic or elastomer that can be molded into a tube and has a low refractive index.

Specific examples thereof include polyethylene, polypropylene, polyamide, polystyrene, ABS, polymethylmethacrylate, polycarbonate, polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate, polyethylene-vinyl acetate copolymer, polyvinyl alcohol, polyethylene- Polyvinyl alcohol copolymer, fluororesin, silicone resin, natural rubber, polyisoprene rubber, polybutadiene rubber, styrene-butadiene copolymer, butyl rubber, halogenated butyl rubber, chloroprene rubber,
Examples thereof include acrylic rubber, EPDM, acrylonitrile-butadiene copolymer, fluororubber and silicone rubber. Among these, silicone-based polymers and fluorine-based polymers having a low refractive index are particularly preferable. Specifically, silicone-based polymers such as polydimethylsiloxane polymer, polymethylphenylsiloxane polymer, fluorosilicone polymer, polytetrafluoroethylene (PTFE),
Tetrafluoroethylene-hexafluoropropylene copolymer (FE
P), tetrafluoroethylene-perfluoroalkoxyethylene copolymer (PFE), polychlorotrifluoroethylene (PCTFE), tetrafluoroethylene-ethylene copolymer (ETFE), polyvinylidene fluoride, polyvinyl fluoride, Vinylidene fluoride-trifluoroethylene chloride copolymer, vinylidene fluoride-hexafluoropropylene copolymer, vinylidene fluoride-propylene hexafluoride-
Examples include tetrafluoroethylene terpolymer, tetrafluoroethylene propylene rubber, and fluorine-based thermoplastic elastomer. These materials may be used alone or in a mixture of two or more kinds, and may be used as a single tube or multiple tubes. Furthermore, only the inner surface in contact with the core liquid can be subjected to a treatment such as a smoothing treatment by a method such as coating or double extrusion.

Further, as shown in FIG. 3, the outer periphery of the clad 22 may be covered with an opaque outer skin 24 for the purpose of shielding light. As the transparent window 23, crown glass, quartz,
Flint glass, chalcogenite glass, sapphire, crystal, polycarbonate, methacrylic resin, polystyrene resin, etc. can be used. In addition, as the core 21,
Not only the viscous liquid, but also the solid or gel form can be used. For example, a solid material such as plastic or thermoelastomer, or a gel material obtained by filling the clad 22 with a curable liquid material such as epoxy resin, liquid silicon, polyurethane, or liquid polybutadiene and curing it may be used. As the core and the clad used in this embodiment, it is preferable to use a core or a clad which has a low absorption rate of light of a wavelength to be transmitted. Light emitting means 3
In this embodiment, the squid is turned on by bright light over the sea near the fishing net 4 emitted from the deck of the squid fishing boat, and attracts squids. The diffusing tube 3A is suspended. That is, as shown in FIG. 4, the diffuser tube 3A is formed in a long shape with a core 31 formed of a liquid transparent material and having elasticity and a transparent material having a lower refractive index than the core 31. , Core 31
And a flexible clad 32 in which fine irregularities are formed on the inner peripheral surface 32A which is in contact with. That is, in the diffusing tube 3A, the light emitted from the light source 1 travels in the core 31 and a part of the light is not totally reflected on the inner peripheral surface 32A.
The light can be transmitted through the inside and efficiently emitted from the outer peripheral surface 32B to the outside. As the light diffusing tube, a light diffusing hose without a light-shielding jacket means may be used.

Further, for example, as shown in FIG.
As B, while forming the core 31 with a viscous transparent material,
It is also possible to mix a large number of spherical reflective scatterers 23 coated with a highly reflective film in the clad 32 together with the core 31, and in this case, more efficient irradiation / scattering is possible. In a transparent matrix as a light diffusing tube, a transparent material having a different refractive index from the matrix is dispersed,
A light-scattering material formed by forming an optically inhomogeneous structure can also be used. The light-scattering material may be formed into a rod shape to form a light diffusing tube, or may be formed into a flat plate shape or any other shape to emit light. In this embodiment, the light emitting means 3 is attached to the pillar 5 of the fishing boat, but the present invention is not limited to this. That is, for example, a long one may be sewn onto a fishing net as the light emitting means. In this case, a detachable optical connector is attached between the light emitting hose and the light transmission hose and the optical transmission is performed when the net is thrown into the water. It may be optically connected to the hose.

Next, a second embodiment of the present invention will be described with reference to FIG.
Will be described with reference to. In this embodiment, the same parts as those in the first embodiment are designated by the same reference numerals to avoid redundant description. The illumination device according to the second embodiment includes a light source 1 ', a light transmission hose 2, a diffusing tube 3A and a diffusing body 3 as light emitting means.
It is equipped with C and is used as a fish collecting device for surf fishing. The light source 1'is adapted to emit light in a wavelength range preferred by a particular fish to be caught, and in this embodiment, it is provided in a handy type lamp house 1'A having a battery (not shown). There is. The lamp house 1'A has a reel 14 for winding the light-transmitting hose 2 and the light-emitting means 3A when not in use and storing them together.
It is equipped with. The diffuser 3C is a diffuser tube 3A of the light from the light source 1 ′ sent through the light transmission hose 2.
The light transmitted without being emitted from the diffuser tube 3B is also emitted radially and brightly. The diffuser 3C of this embodiment is provided with a clad 35 having a hollow spherical shape as shown in FIG. 7 and having fine irregularities formed on the inner peripheral surface 35A thereof, and the clad 35 communicating with the inside of the clad 32 of the diffuser tube 3A. The same as the core 31 in the clad 32 is filled in the inside of 35.

Next, a third embodiment of the present invention will be described with reference to FIG.
Will be described with reference to. The lighting device of the third embodiment includes a light source 1 ', a light transmission hose 2', and a light diffuser 3C as a light emitting means. The optical transmission hose 2'is a fishing rod 6
The fishing line wound by the reel 61 attached to the same is also used, and it is made of a material having a large flexibility and withstanding a certain tension. In addition,
The base end portion of the light transmission hose 2'is detachable from the light transmission hose 2 "on the light source 1'side by an attachment 62 attached to the reel 61. When not in use, the light transmission hose 2'from the light source 1'side. In addition to these examples, it is also possible to use a spherical light scattering material.

[0013]

As described above, according to the illuminating device for catching marine products of the present invention, the fish to be caught,
Light emitted from a light source having a wavelength preferred by catches such as shrimp and crab is guided from the light source to a catching device such as a fishing light, fishing net, fishing line or the vicinity thereof through an optical transmission hose, It is designed to emit and scatter light from the light scattering means, which reliably emits light of the required wavelength even underwater or in the sea, and efficiently attracts catches such as fish, shrimp and crab. Can be captured.

[Brief description of drawings]

FIG. 1 is a side view showing a fishing boat to which a lighting device for capturing marine products according to the present invention is attached.

FIG. 2 is an optical path diagram showing an arrangement of optical components near a light source according to the present invention.

FIG. 3 is a sectional view showing an optical transmission hose according to the present invention.

FIG. 4 is a sectional view showing a diffuser tube used as a light emitting means according to the present invention.

FIG. 5 is a sectional view showing a modified example of the diffuser tube.

FIG. 6 is an explanatory view showing a state where the lighting device for catching marine products according to the present invention is used as a fishing light.

7 is a cross-sectional view showing a diffuser used as a light emitting means of the lighting device shown in FIG.

FIG. 8 is an explanatory view showing a state in which the illuminating device for catching marine products according to the present invention is used as fishing line.

[Explanation of symbols]

 1, 1'Light source 2, 2 ', 2 "Light transmission hose 3, 3A, 3B, 3C Light emitting means

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takao Aoki 42-2 Inuyama-cho, Sakae-ku, Yokohama-shi, Kanagawa (72) Inventor Kiyoshi Koyama 729 Yamanouchi, Kamakura-shi, Kanagawa

Claims (1)

[Claims] 1. A light source that emits light of a wavelength that is preferred by organisms such as fish, shrimp, and crabs to be caught, a viscous liquid-like, solid-like, or gel-like core, and a refractive index smaller than this core. It is attached to a light-collecting hose for collecting light emitted from the light source and a catching means for collecting fishing lights, fishing nets, fishing lines, etc. Alternatively, the fishery catching lighting device is provided in the vicinity of the catching means, and is provided with a light emitting means that irradiates and scatters the light transmitted from the light transmission hose.