JP2017050283A - Led fish-luring lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an LED fish-luring lamp capable of attaining fish-luring efficiency and workability of a worker with one kind of irradiation light.SOLUTION: An LED fish-luring lamp includes an LED light source including a plurality of LED chips and a light-transmissive sealing resin containing a greed phosphor, wherein the LED chips have peak wavelengths within a range of 450-470 nm, the green phosphor has a light emission peak wavelength within a range of 520-550 nm, and has a full width at half maximum of 90 nm or more, concentration of the green phosphor in the light-transmissive sealing resin is 10 wt.% or more, and input power of the LED light source is 100 W or more. The LED fish-luring lamp radiates bluish green light.SELECTED DRAWING: Figure 6

Description

  The present invention relates to an LED fishing light for collecting a fish having a large light quantity (for example, 3 to 150,000 lumens (lm)) and having mainly a property that gathers in light (phototaxis) such as squid, saury, and sword fish.

  In recent years, many lighting fixtures have been proposed in which the light emitting part is replaced with an LED (Light Emitting Diode). In the field of fish collection lamps, replacement of conventional incandescent bulbs and metal halide lamps is progressing because of its low power consumption.

  The role of the fish collection lamp is to attract the fish collection object using the phototaxis. According to Non-Patent Document 1, for example, in the case of a squid, the mechanism of fish collection by a fishlight is as follows. First, the squid near the surface in the ocean at night will swim in the direction of the light when the light from the fishing light reaches, and will reach the bright spot around the fishing boat. However, since the squid has not adapted to the bright environment, avoid the bright place and enter the shadow under the fishing boat. And the squid which entered the shadow under the fishing boat is captured by the pseudo bait lowered from the fishing boat (refer to page 11 of Non-Patent Document 1).

  Recent studies have shown that fish phototaxis occurs for light in a specific wavelength range. For example, the visibility of squid is said to have a peak in light with a wavelength of 480 to 490 nm (blue to blue-green) (see FIG. 6 (b), cited from Non-Patent Document 1). It is known to show. In this regard, an LED that is likely to generate a specific wavelength peak in principle is expected as a light source for a fish collection lamp having excellent fish collection efficiency.

However, there is a problem that workability is deteriorated in an environment of monochromatic light having only a specific wavelength peak.
Therefore, Patent Document 1 discloses a fish collection system using LEDs as fish collection lights. This fish collection system is a 450-470 nm wavelength blue LED chip coated with a yellow phosphor having an emission wavelength of 570-590 nm and irradiated with white light having a correlated color temperature of 5000 K-15000 K; A blue LED chip with a wavelength of 470 nm is coated with a green phosphor having a light emission wavelength of 480 to 550 nm and irradiated with blue-green light. By irradiating light of two different colors, It realizes both workability and fish collection efficiency of workers.

Incidentally, in recent years, green phosphors have been proposed for the purpose of improving color rendering. FIG. 6 of Patent Document 2 discloses an emission spectrum of Y ₃ (Ga, Al) ₅ O ₁₂ : Ce and Lu ₃ Al ₅ O ₁₂ : Ce as green light emission having a wide half-value width. To quote. Reference Example 1 is Y ₃ (Ga, Al) ₅ O ₁₂ : Ce, and Reference Example 2 is Lu ₃ Al ₅ O ₁₂ : Ce.

Japanese Patent No. 5280537 JP 2015-142056 A "Squid fishing LED fishlight utilization guide" Fisheries Research Institute, Fisheries Engineering Research Institute (March 2013)

  The fish collection system disclosed in Patent Document 1 requires first and second fish collection lamps having different irradiation lights. However, there is a problem that using different irradiation light is disadvantageous in terms of cost. It was required to achieve both fish collection efficiency and worker workability with a single type of irradiation light.

  In recent years, light power regulations have been made in some areas for reasons such as measures against rising fuel prices. For example, on the website of the Fisheries Agency, the fishing light used for hand fishing and carp fishing in Fukuoka Prefecture must be 10 kW or less. It is described. It is considered that there is a need for a small-sized fish collection light system that can obtain a sufficient fish collection effect with low input power.

  Therefore, an object of the present invention is to provide an LED fish collection lamp that can achieve both fish collection efficiency and worker workability with a single type of irradiation light.

  By examining the characteristics of the green phosphor and increasing the concentration, the inventor increases the intensity of the blue-green light wavelength peak preferred by the fish collection target and broadens the wavelength distribution in the visible light region, thereby improving the fish collection efficiency. The light color can be made high without impairing the workability of the operator. Furthermore, the problem that the amount of light is reduced due to the higher concentration of the phosphor is solved by mounting a large number (for example, 100 to 5000) of LED chips at a high density. As a result, the present invention has been completed, which eliminates the need for white light irradiation light and realizes both fish collection efficiency and operator workability with only one type of irradiation light. That is, the present invention comprises the following technical means.

  1st invention is an LED fish-collecting lamp provided with the LED light source which has a some LED chip and translucent sealing resin containing green fluorescent substance, The said LED chip has a peak wavelength between 450-470 nm The green phosphor has a light emission peak wavelength between 520 and 550 nm and has a full width at half maximum of 90 nm or more, and the green phosphor in the translucent sealing resin. An LED fishing light characterized by having a body concentration of 10% by weight or more, an input power of the LED light source of 100 W or more, and irradiating blue-green light.

A second invention is characterized in that, in the first invention, 90% by weight or more of the green phosphor is composed of a LuAG phosphor.
The third invention has the first peak wavelength between 450 and 470 nm, the second peak wavelength between 520 and 550 nm, and the first peak wavelength in the first or second invention. And the ratio of the relative emission intensity of the second peak wavelength is 0.8: 1 to 1: 0.8.

According to a fourth invention, in the third invention, the relative emission intensity in the wavelength region of 470 to 490 nm is 0.35 or more, the relative emission intensity of the wavelength of 590 nm is 0.5 or more, and / or 600 nm. The relative emission intensity at a wavelength of 0.4 is not less than 0.4.
According to a fifth invention, in any of the first to fourth inventions, a reflector having a small opening and a large opening is provided.

According to a sixth invention, in any one of the first to fourth inventions, a light projection convex lens having a light distribution angle of 75 degrees or more is provided.
According to a seventh invention, in any one of the first to sixth inventions, the LED light source is blue-green light having a correlated color temperature of 7000K to 8000K.
An eighth invention is an LED fishlight system comprising a plurality of LED fishlights according to the fifth invention and a plurality of LED fishlights according to the sixth invention.
According to a ninth invention, in the eighth invention, there are three or more of the LED fishlights, the brightness of the center value 40 m ahead of each LED fishlight is 10 lux or more, and the input power of the LED light source The total value is 10 kW or less.

  ADVANTAGE OF THE INVENTION According to this invention, the LED fish-collecting lamp which can implement | achieve both fish collection efficiency and a worker's workability | operativity with one type of irradiation light can be provided.

_{Y 3 (Ga, Al) 5} O 12: Ce and Lu ₃ Al ₅ O _12: it is a graph showing the emission spectra of Ce. It is a perspective view of the LED fishlight which concerns on the example of 1st embodiment. It is a top view of the LED fishlight which concerns on the example of 1st embodiment. It is side surface sectional drawing of the LED fish-collecting lamp which concerns on the example of 1st embodiment. It is side surface sectional drawing of the LED light source module which concerns on the example of 1st embodiment. (A) is a graph which shows the wavelength distribution of the irradiation light of the LED fishing lamp which concerns on the example of 1st embodiment, (b) is a graph which shows the visibility of a squid and a person. It is a perspective view of the LED fishing light which concerns on the example of 2nd embodiment. It is a top view of the LED fish-collecting lamp which concerns on the example of 2nd embodiment. It is side surface sectional drawing of the LED fish-collecting lamp which concerns on the example of 2nd embodiment. It is a figure which shows the example of installation to the fishing boat of LED fishing light, and an estimated irradiation range. It is the image of the depth direction of the fish finder at the time of LED fishing lamp use concerning the example of a 2nd embodiment, (a) is an image just after lighting, (b) is an image under lighting, (c) Is the image after extinguishing. It is an image of the horizontal direction of the fish finder at the time of LED lighting lamp use concerning the example of a 2nd embodiment. It is (a) top view, (b) front view, and (c) right side view of the LED fishlight according to the third embodiment.

The LED fish lamp of the present invention has a large input power (for example, 100 to 5000, preferably 200 or more) mounted with several W class (for example, 0.2 to 4 W) LED chips. A squid having a light source of 100 W or more (for example, 100 W or more, preferably 200 W or more, more preferably 400 W or more, more preferably 500 W or more), a reflector or lens as a projection means, and a heat sink that cools the light source. It has a first peak wavelength (for example, 450 to 470 nm) near the peak of visibility (short wavelength side), and a second peak wavelength (for example, 520 to 550 nm) at or near the peak of human visibility. Yes.
In addition, the LED fishing light system of the present invention for small vessels includes a plurality of LED fishing lights (for example, 3 to 16 or 4 to 8), and the brightness of the center value of 40 m ahead of each LED fishing light. Is 10 lux or more (preferably 15 lux or more, more preferably 18 lux or more) or the brightness of the central value 100 m ahead is 10 lux or more (preferably 15 lux or more, more preferably 18 lux or more), and The total value of the input power is 10 kW or less (preferably 7 kW or less, more preferably 5 kW or less).
Hereinafter, the present invention will be described based on examples.

[First embodiment]
The LED fish lamp 1 according to the first embodiment particularly targets squids among fish having phototactic properties. The LED fish lamp 1 according to the first embodiment includes a reflector for irradiating light far away.
The configuration of the LED fish lamp 1 according to the first embodiment will be described with reference to FIGS. 2 is a perspective view of the LED fishing light 1, FIG. 3 is a plan view, and FIG. 4 is a side sectional view.
The LED fishlight 1 includes a reflector 10, an LED light source module 20, a module holder 31, a heat sink 32, and a mounting portion 33 as main components.

The reflector 10 includes an enlarged diameter portion 11 and a cover 12, and reflects and condenses light emitted from the LED light source module 20, and gives a predetermined orientation angle and light amount distribution.
The orientation angle of the present embodiment example is about 30 °, which is suitable for attracting distant fish collection objects by distant irradiation.

The enlarged diameter portion 11 includes a bottom opening (small opening) where the LED light source module 20 is disposed and an upper opening (large opening) where the cover 12 is disposed. The enlarged diameter portion 11 is made of, for example, an aluminum alloy, and the inner surface is mirror-finished to prevent a decrease in the amount of light due to irregular reflection.
The diameter of the bottom opening of the enlarged diameter portion 11 is, for example, 10 to 20 cm, the diameter of the upper opening is, for example, 20 to 60 cm, and the height from the bottom opening to the upper opening is, for example, 5 to 80 cm.
The size ratio of the upper and bottom openings of the enlarged diameter portion 11 and the curved surface of the inner surface may be changed, or a multi-reflector in which a plurality of reflecting surfaces are provided on the enlarged diameter portion 11 may be used.

The cover 12 is made of a translucent resin plate, and is preferably made of a transparent resin plate (for example, a polycarbonate plate) that is hard to break and has weather resistance that can withstand changes in ultraviolet rays, salinity, humidity, and temperature. The cover 12 is fixed by a fastener 13 provided at the edge of the large opening of the enlarged diameter portion 11.
In addition, you may add the process which carries out light diffusion to the cover 12 for glare (glare) countermeasures.

  FIG. 5 is a side sectional view of the LED light source module 20 according to the first embodiment. The LED light source module 20 includes a mounting substrate 21, a large number of LED chips 22, a dam material 23, a translucent resin portion 24, and a power cable 26 (see FIG. 3) as main constituent elements. It constitutes a large light source that is recognized as green light.

The mounting substrate 21 is a material having excellent thermal conductivity, and is made of, for example, a copper plate or an aluminum plate. It is sufficient for the mounting substrate 21 to have at least a surface made of a metal material. For example, a water-spread heat spreader having a surface made of copper (a laminated structure made of three types of copper plates, an upper plate, an intermediate plate, and a lower plate) is used. Also good. A reflective layer (not shown) is formed on the surface of the LED mounting region of the mounting substrate 21, and the light emitted from the LED chip 22 is reflected upward in the drawing. This reflective layer is, for example, a silver plating layer, or an ink containing white inorganic powder (white inorganic pigment) and silicon dioxide (SiO ₂ ) as main components and mixed with a solvent of diethylene glycol monobutyl ether containing organic phosphoric acid. It is an inorganic white insulating layer formed by applying and baking.

The LED chip 22 is an LED bare chip having a peak wavelength of light emission between 450 to 470 nm. Specifically, for example, it is a blue LED element using a gallium nitride-based semiconductor, the emission peak wavelength is 450 to 462.5 nm, and the input power is 0.1 to 0.3 W.
Unlike the present embodiment, the LED chip 22 may be configured by an LED package (input power is several W class).

The LED chip 22 is mounted on the mounting substrate 21 by COB (Chip On Board), and emits light upward in the figure (the direction opposite to the mounting substrate 21). The bottom surface of the LED chip 22 is fixed to the top surface of the mounting substrate 21 by a high thermal conductive adhesive, solder connection or the like.
Adjacent LED chips 22 are arranged at substantially equal intervals and connected by wire bonding with wires 25, and the LED chips 22 located at the ends are also wire-bonded to the wiring layer on the mounting substrate 21.
The mounting area density (chip mounting area occupancy) of the LED chips 22 in the LED mounting area (reflection area) is preferably 15 mm ² / cm ² or more, more preferably 20 mm ² / cm ² or more. This is because by increasing the luminous intensity per unit area and realizing high brightness, it is possible to reach light farther and deeper in the sea. In order to achieve high brightness, for example, it is disclosed to use an LED chip having a maximum rated current of 100 mA or more, preferably a maximum rated current of 300 mA or more, and more preferably a maximum rated current of 500 mA or more.

  In the LED mounting area of the mounting substrate 21, for example, 300 or more, 600 or more, 1200 or more, or 1500 or more LED chips 22 are arranged, and the input power is 100 W or more, 200 W or more, 400 W or more or An LED light source of 500 W or more is configured. This LED light source is configured by providing several to several tens of LED modules formed by connecting several tens or more of LED chips 22 in series, and connecting the LED modules in parallel.

  The LED mounting region of the mounting substrate 21 is surrounded by a dam material 23 having light reflectivity at least on the surface. The dam material 23 prevents the sealing resin from flowing during manufacture, and is made of a resin, a metal material, or the like. Inside the dam material 23, there is provided a translucent resin portion 24 formed by filling and curing the translucent resin.

  The translucent resin portion 24 is configured by filling a translucent resin containing a phosphor. The base material of the translucent resin portion 24 is, for example, an epoxy resin, a silicone resin, or an acrylic resin. As a detailed type of the silicone resin, for example, a methyl silicone in which the side chain of the base polymer is composed only of a methyl group, a phenyl silicone having a phenyl group in a part of the side chain, and the like can be given.

The phosphor contained in the translucent resin portion 24 is selected so that the wavelength distribution of the irradiation light combining the light emission of the LED chip 22 and the light emission of the phosphor is compatible with fish collection efficiency and operator workability. The
Specifically, the wavelength distribution of the irradiation light is selected so as to have the following characteristics.
(A) The first peak wavelength (excitation light peak wavelength) near the peak of squid visibility (short wavelength side), and the second peak wavelength (emission peak wavelength) at or near the peak of human visibility. (B) the ratio of the relative emission intensity of the first peak wavelength and the second peak wavelength is 0.8: 1 to 1: 0.8 (preferably 0.85: 1 to 1: 0) .85) (c) Raising the intensity of a wavelength (for example, 480 to 490 nm) corresponding to the peak of the visibility of squid present near the valley between the first peak wavelength and the second peak wavelength, and Broadening the wavelength distribution at the base of the second peak wavelength. Specifically, when the peak wavelength intensity is 1.0, the relative emission intensity in the wavelength region of 470 to 490 nm is 0.35 or more (preferably 0.38 or more), and the relative emission at the wavelength of 590 nm is used. The intensity is 0.5 or more (preferably 0.55 or more) (or the relative emission intensity at a wavelength of 600 nm is 0.4 or more (preferably 0.43 or more)).

  From the viewpoint of satisfying the above feature (a), in this embodiment, the LED chip 22 having a light emission peak wavelength between 450 and 470 nm is combined with a green phosphor having a light emission peak wavelength at 540 nm. Yes. The emission peak wavelength of the phosphor is not limited to this, but it is preferable that the emission peak wavelength is between 530 and 550 nm from the viewpoint of making the irradiated light feel brighter by bringing it closer to human visibility. It is more preferable to have an emission peak wavelength between them.

  When viewed as the correlated color temperature of the irradiation light combining the light emission of the LED chip 22 and the light emission of the phosphor, a viewpoint of approaching blue-green light synthesized by a wavelength distribution having a short wavelength side peak and a long wavelength side peak Therefore, the correlated color temperature is preferably 7000 to 8000K, more preferably 7200 to 7800K, and even more preferably 7300 to 7700K.

  In order to satisfy the above feature (a), it is preferable to increase the concentration of the phosphor from the viewpoint of increasing the light emission from the phosphor and increasing the relative peak wavelength on the long wavelength side. It is preferably 10 to 25% by weight, more preferably 13 to 20% by weight, and still more preferably 15 to 18% by weight. In this embodiment, it is 15.5% by weight.

  In order to satisfy the feature (c), it is preferable to increase the full width at half maximum of emission of the phosphor from the viewpoint of broadening the distribution of the second peak wavelength of the phosphor, for example, the full width at half maximum is 90 nm or more. It is preferable that the full width at half maximum is 100 nm or more, and more preferably 105 nm or more.

When producing a white LED light source, it is common to use yellow and red phosphors, and it is known that when red is mixed, the color rendering is improved, while the conversion efficiency is lowered and the total luminous flux is lowered. In this respect, since only the green phosphor is used in this embodiment, the conversion efficiency is good and the concentration distribution can be easily adjusted.
The green phosphor employed in this embodiment is a LuAG phosphor represented by the chemical formula Lu ₃ Al ₅ O ₁₂ : Ce, and has an emission spectrum similar to that of Reference Example 2 in FIG.

Other examples of green phosphors include scandium oxide phosphors represented by the chemical formula Ca ₃ Sc ₂ Si ₃ O ₁₂ : Ce, chemical formulas (Si, Al) ₆ (O, N) ₈ : β represented by Eu -Also disclosed are sialon phosphors, zinc sulfide phosphors represented by the chemical formula ZnS: Cu, Al, and the like. These phosphors and other yellow and red phosphors may be used in combination for adjustment to the phototaxis and color tone of the fish collection target, but even in this case, the phosphor concentration of the LuAG phosphor is 90 wt. % Or more (preferably 95% by weight or more).

Since the LED light source module 20 radiates heat generated by the LED chip 22, a fixing tool such as a screw is placed in the recess of the module holder 31 in a state where the back surface of the mounting substrate 21 is in contact with the contact surface of the module holder 31. It is fixed by.
Between the mounting substrate 21 and the module holder 31, a heat transfer member such as heat release grease or heat release sheet is interposed as necessary.

  The module holder 31 has the reflector 10 attached to the front surface via an O-ring (not shown), and the heat sink 32 attached to the rear surface (see FIG. 4). The module holder 31 and the heat sink 32 are made of a material having excellent thermal conductivity, for example, a metal material such as copper or aluminum.

The heat sink 32 is water-cooled, and coolant is supplied from the supply port 32a by a pump (not shown) and circulates in the heat sink 32 while being discharged from the discharge port 32b.
The heat sink 32 may be a natural air-cooled type and an electric fan. However, when the LED chips 22 are mounted at a high density, there is a problem that the mounting portion becomes high temperature and a donut phenomenon occurs in which the light quantity at the light emitting center portion, which has poor heat dissipation, is particularly reduced. It is necessary to adopt a heat sink with particularly high capacity.

  The heat sink 32 is provided with power connectors 26 a and 26 b for supplying power to the LED light source module 20 via the power cable 26. In addition, the heat sink 32 is provided with an attachment portion 33 that is attached to the installation location and enables angle adjustment.

[Wavelength distribution]
The wavelength distribution of the irradiation light of the LED light source module 20 was measured. 6 (a) is a graph showing the wavelength distribution of the irradiation light of the LED fishing lamp 1, (1) is the wavelength distribution of the LED light source module 20, and (2) is the wavelength distribution of Comparative Example 1. (3) is a wavelength distribution of a blue-green LED element conventionally used for collecting squid.
Comparative Example 1 is an LED light source module in which the phosphor of the LED light source module 20 is replaced with a yellow phosphor (YAG phosphor represented by the chemical formula Y ₃ Al ₅ O ₁₂ : Ce) to emit white light. is there.

The following can be understood from FIG.
(1) shows that there are peaks in the wavelength distribution at the emission peak wavelength of 450 to 462.5 nm of the LED chip 22 and the emission peak wavelength of 520 to 550 nm of the phosphor.
(2) is similar to (1) that the emission peak wavelength of the LED chip 22 has the first peak, but the emission intensity of the second peak (near 560 nm) on the long wavelength side is small. .
(3) shows that there is a single peak near 500 nm.

The following can be inferred from FIG.
In (1), the relative emission intensity at a wavelength of 480 to 490 nm, which is the peak of phototaxis of squid as a fish collection target, is higher than in (2) and (3), and it is presumed that squid fish collection performance is relatively high. Is done.
In (1), since the range with a high relative light emission intensity in the visible light region is broadly distributed (for example, the relative light emission intensity near 600 nm is 0.4 or more), the visibility of the operator is improved. Is inferred. In other words, since the relative emission intensity is high from yellow, which is a complementary color of blue violet, to yellow orange, which is a complementary color of blue (for example, the relative emission intensity near 570 nm is 0.75 or more and the relative emission intensity near 590 nm). Is 0.5 or more and the relative emission intensity in the vicinity of 600 nm is 0.4 or more), it is presumed that the visibility of the worker is improved.

[Example of installation]
Four LED fishlights 1 were installed on the fishing boat, and a test for estimating the irradiation range was performed.
FIG. 10 is a plan view showing an arrangement in which the LED fishing light 1 is installed on a 5t class fishing boat 3. Above the work area 3 a of the fishing boat 3, a wire 4 for suspending a fish collecting lamp is provided in the work area 3 a. Two LED fish lamps 1 a and 1 b were installed on the bow side of the wire 4, and two LED fish lamps 1 c and 1 d were installed on the stern side of the wire 4. The two LED fishlights 1 a and 1 c pointed the large opening of the reflector 10 toward the left side of the fishing boat 3, and the two LED fishlights 1 b and 1 d pointed the large opening of the reflector 10 toward the right side of the fishing boat 3. The power consumption of the LED fishlights 1a to 1d is 600 W, respectively, and the brightness (center value) after 100 m is 22 lux.

  In the above arrangement, as a result of irradiating the four LED fishlights 1a to 1d, the irradiation range of the four LED fishlights 1a to 1d is a range surrounded by the curves A1 and A2 in FIG. Was estimated. Here, the range of A1 indicates a range in which one lamp can be irradiated, and the range of A2 indicates a range in which two lamps can overlap. That is, the range (A1) within about 300 m (arrow D1 in the figure) from the four LED fishlights 1a to 1d, and the middle between the two LED fishlights 1a and 1b and the two LED fishlights 1c and 1d The range (A2) within about 500 m (arrow D2 in the figure) from side to side was estimated as the irradiation range. FIG. 10 is an image diagram. To be precise, the portions of the stern and stern are slightly darker.

  According to the LED fishing lamp 1 of the first embodiment described above, the intensity of the irradiation light is high at a wavelength corresponding to the peak of the squid phototactic property, and the wavelength distribution has a high relative light emission intensity in the visible light region. By being broad, it is considered that both the fish collection efficiency and the operator's workability can be realized with one kind of irradiation light. Moreover, unlike the metal halide lamp, the worker does not tan and the energy efficiency is also good. Since the total power consumption of the fishlights 1a to 1d is as low as 2.4 kW, it is possible to reduce the fuel cost and reduce the size of the generator.

[Second Embodiment]
2nd Embodiment is related with the LED fish-collecting lamp 2 provided with the lens 40 as a light projection means.
The LED fish lamp 2 according to the second embodiment is different from the LED fish lamp 1 according to the first embodiment in that a lens 40 is provided instead of the reflector 10. Below, it demonstrates centering around difference and attaches | subjects the code | symbol same as a 1st embodiment about a common structure, and omits description.

  7 is a perspective view of the LED fishing light 2, FIG. 8 is a plan view, and FIG. 9 is a side sectional view. The LED fishing light 2 includes a lens 40, an LED light source module 20, a module holder 31, and a water-cooled heat sink 32. About the LED light source module 20, the module holder 31, and the water cooling heat sink 32, since it is the same as that of the example of 1st embodiment, description is omitted.

  The lens 40 is a convex lens for projecting light emitted from the LED light source module 20 onto the sea surface and the ship. The material of the lens 40 is a resin material having translucency, weather resistance, and lightness, for example, silicone. The orientation angle of the lens 40 is an angle (for example, 75 to 150 degrees) necessary for illuminating the surface of the boat even when the LED fishing light 1 is suspended above the fishing boat and the lens 40 is directed horizontally. In the example, it is 100 degrees. Since the light source of the present embodiment has a large amount of light, the amount of light can be secured even if the orientation angle of the lens 40 is increased, and both the sea surface and the ship can be irradiated. The diameter of the lens 40 is, for example, 10 to 50 cm in order to secure a certain amount of irradiation region.

  The LED fishing lamp 2 according to the second embodiment also has the same effects as the first embodiment (however, the far-irradiation property is inferior). Further, since the light source is a large amount of light and the orientation angle of the lens 40 is large, it is possible to irradiate the surface of the sea and the ship with a sufficient amount of light by wide-area irradiation with one kind of irradiation light.

  The LED fishing light 1 according to the first embodiment and the LED fishing light 2 according to the second embodiment can be used in combination. By arranging multiple LED fishlights 1 and 2 LED fishlights, both the far-field irradiation and the wide-area irradiation are performed, and an LED fishlight system that secures a sufficient amount of light from the vicinity of the boat and from the vicinity of the fishing boat to a distant place is constructed. can do.

[Field test]
Four LED fishing lights 1 and 2 (corresponding to 5t fishing boat lights) were installed on a 155-t fishing boat, and a squid fishing test was conducted by three anglers.
In the field test, four LED fishlights 1 are always lit (LED fishlight 2 is not used) and four LED fishlights 2 are lit constantly (LED fishlight 1 is not used). And carried out.

  First, using the reflector type LED fishing light 1, squid fishing was carried out at a point of about 30km to the west of Iki-jima, Nagasaki Prefecture, from 10:00 on the first day to 3:00 on the second day (substantially 5 hours) did. Usually, fishing boats use sea anchors to synchronize with the flow of the tide, but the fishing boats in this experiment did not have sea anchors, and the sea conditions were windy, so the experiment was conducted by drifting the boats. In addition, it was not possible to put a pseudo bait on the boat shadow (it was disadvantageous for fishing).

  Next, using the lens-type LED fishing light 2, the time on the second day 22: 00 to the third day 3:00 at a point about 7 km southwest of the point where the reflector-type LED fishing light 1 was implemented. Squid fishing was carried out (substantially 4 hours). The experiment was conducted by drifting the ship because of the strong wind and sea conditions. In addition, because of the wind, it was not possible to drop the pseudo bait (Sute) on the boat shadow (it was disadvantageous for fishing).

Table 1 shows the time course of fishing results when using the reflector type LED fishing light 1.
[Table 1]

As can be seen from Table 1, a total of 170 high squid (mostly kensaki squid) were caught in substantially 5 hours, and a large catch of about 34 pie per hour was obtained. Squids over 34cm were the largest ever.
When using the lens-type LED fishing light 2, a total of 120 high squid were caught in about 4 hours, and about 30 high per hour.
In addition, about 10% of the squid caught by the LED fishing light 1 and the LED fishing light 2 was a big thing of 25 cm or more.

  11 and 12 show images of the fish finder when the lens-type LED fishing light 2 is used. FIG. 11 is an image in the depth direction of the fish finder, where (a) is an image immediately after lighting, (b) is an image being lit, and (c) is an image after being turned off. One scale on the right side in FIG. 11 indicates a water depth of 10 m. FIG. 12 shows a horizontal image of the fish finder immediately after the LED fishlight 2 is turned on. In the figure, the inner circle indicated by a dotted line indicates a distance of 100 m from the fishing boat, and the outer circle indicates a distance of 200 m from the fishing boat.

As can be seen from FIG. 11 (a) and FIG. 12, it can be seen that the school of fish has gathered on the fishing boat in response to light immediately after lighting. Moreover, as can be seen from FIG. 11B, it can be seen that the school of fish is gathering near a water depth of 50 m during lighting. The state shown in FIG. 11B was almost unchanged during lighting. In addition, as can be seen from FIG. 11C, it can be seen that the school of fish has decreased after the lights are turned off.
From the above, the fish collection effect by the lens type LED fish collection light 2 can be confirmed.

  When the workers were interviewed about the feeling of using the LED fishing light 1 and the LED fishing light 2, they received an evaluation comment that the light emission was bright with a large amount of light and looked cool and easy to work on board.

  As described above, according to the LED fishing light 1 and the LED fishing light 2, it is confirmed that the fish collection efficiency is high based on the images of the fishing results and the fish finder, and that the operator's workability can be ensured from the operator's evaluation comments. It was.

[Third embodiment]
The third embodiment relates to an LED fishing light 5 having an air-cooled heat sink 51 as a cooling means.
The LED fish lamp 5 according to the third embodiment is different from the LED fish lamp 2 according to the second embodiment in that an air-cooled heat sink 51 is provided instead of the water-cooled heat sink 32. Below, it demonstrates centering around difference and attaches | subjects the code | symbol same as a 2nd embodiment about a common structure, and omits description.

FIG. 13 is a (a) plan view, (b) front view, and (c) right side view of an LED fish lamp 5 according to the third embodiment. The LED fishing light 5 includes an LED light source module 20, a lens 40, a module holder (not shown), and an air-cooled heat sink 51. About the LED light source module 20 and the lens 40, since it is the same as that of a 2nd embodiment, description is omitted.
The module holder (not shown) is a known device (for example, a bolt fastening flange) provided on the peripheral edge of the lens 40, and fixes the lens 40, the LED light source module 20, and the heat sink 51.

The heat sink 51 includes a large number of fins and is made of a metal material such as copper or aluminum having excellent thermal conductivity. The heat sink 51 is fixed in contact with the back surface of the LED light source module 20 through the heat spreader described above and a heat transfer member such as heat dissipation grease or heat dissipation sheet.
The same effects as those of the second embodiment can be obtained by the LED fishing lamp 5 according to the third embodiment.

  The preferred embodiments of the present invention have been described above, but the technical scope of the present invention is not limited to the description of the above embodiments. Various modifications and improvements can be added to the above-described embodiment, and forms with such modifications or improvements are also included in the technical scope of the present invention.

1 LED fishlight (reflector type)
2 LED fishlight (lens type)
3 fishing boat 4 wire 5 LED fishing light (lens type)
DESCRIPTION OF SYMBOLS 10 Reflector 11 Wide diameter part 12 Cover 13 Fastener 20 LED light source module 21 Mounting board 22 LED chip 23 Dam material 24 Translucent resin part 25 Wire 26 Power supply cable 31 Module holder 32 Heat sink 33 Mounting part 34 O-ring 40 Lens 51 heatsink

Claims (9)

In an LED fish lamp having an LED light source having a plurality of LED chips and a translucent sealing resin containing a green phosphor,
The LED chip has a peak wavelength between 450-470 nm,
The green phosphor is a green phosphor having an emission peak wavelength between 520 and 550 nm and a full width at half maximum of 90 nm or more;
The concentration of the green phosphor in the translucent sealing resin is 10% by weight or more,
An LED fishing light characterized in that an input power of the LED light source is 100 W or more and irradiates blue-green light.   The LED fish lamp according to claim 1, wherein 90% by weight or more of the green phosphor is made of a LuAG phosphor. Having a first peak wavelength between 450 and 470 nm;
Having a second peak wavelength between 520 and 550 nm;
The LED fishing light according to claim 1 or 2, wherein the ratio of the relative light emission intensity of the first peak wavelength and the second peak wavelength is 0.8: 1 to 1: 0.8. The relative emission intensity in the wavelength region of 470 to 490 nm is 0.35 or more,
The LED fishing light according to claim 3, wherein the relative emission intensity at a wavelength of 590 nm is 0.5 or more and / or the relative emission intensity at a wavelength of 600 nm is 0.4 or more.   The LED fish lamp according to any one of claims 1 to 4, further comprising a reflector having a small opening and a large opening.   The LED fishing light according to any one of claims 1 to 4, further comprising a light projection convex lens having a light distribution angle of 75 degrees or more.   The LED fishlight according to any one of claims 1 to 6, wherein the LED light source is blue-green light having a correlated color temperature of 7000K to 8000K.   An LED fish lamp system comprising the LED fish lamps according to claim 5 and the LED fish lamps according to claim 6.   3 or more LED fishlights are provided, the brightness of the center value of 40 m ahead of each LED fishlight is 10 lux or more, and the total input power of the LED light sources is 10 kW or less, The LED fishing light system according to claim 8.