LED fishing light

Abstract

To provide an LED fishing light 10 for efficiently collecting capturing object fishery products, or small fishes, plankton, etc. on which the capturing object fishery products prey, and efficiently contributing to increase of a fish catch amount of the capturing object fishery products.SOLUTION: An LED fishing light 10 for radiating light emitted from an LED light source into sea and collecting fishes, comprises: an LED light source 1 radiating light with a required wavelength; and a lens 6 for converging a part of radiation light radiated from the LED light source 1. The part of the radiation light of the LED light source 1 is converged by the lens 6 and a convergence light region C is formed in the sea, and a lens shadow region S adjacent to the convergence light region C is formed. The other part of the radiation light of the LED light source 1 is not converged by the lens 6 and is radiated into the sea so as to form a radiation light region R which is adjacent to the lens shadow region S in the sea.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to an LED fish aggregating lamp, and more particularly to an LED fish aggregating lamp provided with an LED light source used when catching fish and shellfish.

Background Art

[0002] Conventionally, when catching various fish and shellfish such as squid, saury, and shrimp, a fish aggregating lamp that irradiates the light of a halogen lamp or a metal halide lamp toward the sea surface and aggregates fish using the positive phototaxis of the fish and shellfish has been used. In recent years, many LED fish aggregating lamps using LED light sources with excellent luminous efficiency and long life compared to halogen lamps have been developed.

[0003] For example, as a conventional LED fish aggregating lamp, by irradiating light of an optimal wavelength according to the types of target fish and shellfish such as squid, flying fish, and saury, the utilization rate of the light of the fish aggregating lamp is improved (see Patent Document 1 below), a blue-based LED light source that illuminates the sea surface with blue light that has high visual sensitivity and high water transmittance in squid and the like, and a white-based LED light source that illuminates the deck with white light suitable for on-board work without impairing the health of fishermen are combined to improve the fishing efficiency (see Patent Document 2 below), an LED light source that illuminates a sea area near the fishing boat with light having a long wavelength such as red and another LED light source that illuminates a sea area far from the fishing boat with light having a short wavelength such as blue are combined to improve the fishing efficiency (see Patent Document 3 below), and by irradiating light of a wavelength according to a marine environment such as sea fog, the fishing efficiency is improved (see Patent Document 4 below), etc. have been proposed.

[0004] However, these conventional LED fish aggregating lamps have the feature of combining a plurality of LED light sources with different emission wavelengths and varying the irradiation angle, irradiation position, etc. for each LED light source according to the purpose. Regarding the distribution of the irradiation areas formed by the irradiation light emitted from each individual LED light source in the sea, although there are differences in width, depth, inclination with respect to the sea surface, etc., in any LED fish aggregating lamp, the irradiation areas by each LED light source have a simple shape without unevenness at the boundary between light and darkness.

[0005] Therefore, although conventional LED fish aggregating lights can efficiently aggregate target fish and shellfish such as squid, saury, and shrimp, as well as small fish and plankton that these target fish and shellfish prey on, by irradiating with LED light, this does not necessarily lead to an increase in the catch of target fish and shellfish. There has been a demand for further improvement in the fishing efficiency of conventional LED fish aggregating lights.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Summary of the Invention

Problems to be Solved by the Invention

[0007] In view of the above-mentioned demands on conventional LED fish aggregating lights, the present invention has been made, and an object of the present invention is to provide an LED fish aggregating light that can efficiently aggregate target fish and shellfish, as well as small fish and plankton that these target fish and shellfish prey on, and further effectively lead this to an increase in the catch of target fish and shellfish.

Means for Solving the Problems

[0008] The present invention is an LED fish aggregating light that irradiates light emitted from an LED light source into the sea to aggregate fish, and includes an LED light source that emits light of a required wavelength, and a lens that focuses a part of the emitted light from the LED light source. A part of the emitted light from the LED light source is focused by the lens to form a focused light area in the sea, and a lens shadow area adjacent to the focused light area is formed. The other part of the emitted light of the LED light source is irradiated into the sea without being focused by the lens, so as to form an emitted light area adjacent to the lens shadow area in the sea.

[0009] Moreover, the present invention is an LED fish aggregating lamp that irradiates light emitted from an LED light source into the sea to aggregate fish, and includes a first LED light source that emits blue light, a second LED light source that is provided adjacent to the first LED light source and emits yellow light, and a common lens that focuses a part of the emitted light emitted from the first LED light source and a part of the emitted light emitted from the second LED light source. A part of the emitted light of the first LED light source is focused by the common lens to form a blue focused light area in the sea and a blue lens shadow area adjacent to the blue focused light area. While the other part of the emitted light of the first LED light source is irradiated into the sea without being focused by the common lens to form a blue emitted light area adjacent to the blue lens shadow area in the sea. A part of the emitted light of the second LED light source is focused by the common lens to form a yellow focused light area in the blue lens shadow area and a yellow lens shadow area in the blue focused light area. The other part of the emitted light of the second LED light source is radiated into the sea without being focused by the common lens to form a yellow emitted light area adjacent to the yellow lens shadow area in the sea.

[0010] Moreover, in the present invention, the first LED light source emits blue light having a peak in the wavelength range of 470 nm to 505 nm. The second LED light source is characterized by emitting yellow light having a peak in the wavelength range of 520 nm to 600 nm.

[0011] Moreover, in the present invention, the first LED light source is composed of a plurality of first LED packages arranged in one row or multiple rows on the substrate surface. The second LED light source is characterized by being composed of a plurality of second LED packages arranged in one row or multiple rows adjacent to the row of the first LED packages of the first LED light source on the substrate surface.

[0012] Further, the present invention is characterized in that the second LED light source is provided on both sides adjacent to the first LED light source.

[0013] Further, the present invention is characterized in that the common lens is a Fresnel lens.

Advantages of the Invention

[0014] According to the LED fish aggregating lamp of the present invention, an irradiation area rich in unevenness at the boundary between light and darkness can be formed in the sea, so that target fish and shellfish to be caught such as squids, small fish preyed on by these target fish and shellfish, plankton, etc. can be efficiently aggregated, and further, this can be effectively connected to an increase in the catch of target fish and shellfish.

Brief Description of the Drawings

[0015]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Mode for Carrying Out the Invention

[0016] As shown in FIGS. 1 and 2, the LED fish aggregating lamp 10 of the present embodiment mainly includes a housing 4 having a rectangular shape in front view, a first LED light source 1, a second LED light source 2, and a third LED light source 3 provided in the housing 4, a light-transmissive cover 5 provided at the front opening of the housing 4, a common lens 6 provided on the cover 5, and a number of heat dissipation fins 7 provided on the back surface of the housing 4.

[0017] The first LED light source 1 is composed of a total of 14 first LED packages 11·11... arranged in a row along the longitudinal direction of the housing 4 on the substrate surface 41 provided in the housing 4. Each first LED package 11 emits blue light having a peak in the wavelength range of 470 nm to 505 nm. Among the target fish and shellfish to be captured, for example, the maximum visual sensitivity wavelength of squids is in the wavelength range of 470 nm to 505 nm. Therefore, by irradiating blue light in this wavelength range, squids can be efficiently attracted.

[0018] The second LED light source 2 is composed of a total of 15 second LED packages 21·21... arranged in a row along the longitudinal direction of the housing 4 on the substrate surface 41. Each second LED package 21 emits yellow light having a peak in the wavelength range of 520 nm to 600 nm. By irradiating yellow light in this wavelength range, small fish, plankton, etc. that are preyed on by target fish and shellfish such as squids can be efficiently attracted.

[0019] This second LED light source 2 is provided adjacent to the first LED light source 1. In the present embodiment, two rows of second LED light sources 2·2 each consisting of a second LED package row 21L are arranged in parallel on both sides adjacent to the first LED light source 1 so as to sandwich the first LED light source 1 consisting of the first LED package row 11L.

[0020] The third LED light source 3 consists of a total of 14 third LED packages 31·31… arranged in a row along the longitudinal direction of the housing 4 on the substrate surface 41. Each third LED package 31 emits yellow light having a peak in the wavelength range of 520 nm to 600 nm, similar to the second LED package 21.

[0021] This third LED light source 3 is provided adjacent to the side opposite to the first LED light source 1 in the second LED light source 2. In the present embodiment, two rows of third LED light sources 3·3 each consisting of a third LED package row 31L are arranged in parallel outside each second LED light source 2 so as to sandwich the first LED light source 1 and the second LED light sources 2·2.

[0022] The common lens 6 is a convex lens that mainly focuses the emitted light radiated from the first LED light source 1 and the second LED light source 2. In the present embodiment, it is provided directly above the first LED light source 1. That is, the lens optical axis of the common lens 6 is located on the center of the emitted light of the first LED light source 1 and is displaced with respect to the center of the emitted light of the second LED light source 2 adjacent to the first LED light source 1. Further, the common lens 6 of the present embodiment consists of a cylindrical Fresnel lens along the column direction of the first LED package row 11L of the first LED light source 1 and is integrally formed on the inner surface side of the cover 5. By this, the flattening, antifouling, and weight reduction of the outer surface of the cover 5 are achieved.

[0023] In addition, the common lens 6 is provided on a part of the cover 5 and focuses a part of the radiation light emitted from the first LED light source 1 and the second LED light source 2 respectively. As a result, as shown in FIG. 3, in front of the LED fish aggregating lamp 10, a part of the radiation light (blue light) emitted from the first LED light source 1 is focused to form a focused light area C (blue focused light area Cb), and a pair of lens shadow areas S (blue lens shadow areas Sb) adjacent to this focused light area C are formed. On the other hand, the other part of the radiation light (blue light) emitted from the first LED light source 1 is radiated as it is without being focused by the common lens 6, and a pair of radiation light areas R (blue radiation light areas Rb) adjacent to the lens shadow area S are formed.

[0024] Therefore, as shown in FIG. 4, when the sea surface 8 is illuminated by the LED fish aggregating lamp 10 of the present embodiment, a blue focused light area Cb where the blue light focused by the common lens reaches deep into the sea, a blue lens shadow area Sb which is the shadow of the common lens, and a blue radiation light area Rb where the blue light emitted from the first LED light source 1 spreads horizontally form a blue irradiation area Ib with a richly uneven light-dark boundary in the sea. In the figure, the part indicated by the symbol I(1) is the blue irradiation area formed when no common lens is provided, and like the conventional LED fish aggregating lamp, it has a simple shape without unevenness at the light-dark boundary.

[0025] According to the first LED light source 1 of the LED fish aggregating lamp 10 of the present embodiment in this way, since a blue irradiation area Ib with a richly uneven light-dark boundary can be formed in the sea, as shown in FIG. 4, it is possible to efficiently aggregate target fish and shellfish such as squids, and further effectively lead this to an increase in the catch.

[0026] That is, in particular, squids gather aiming at the light of the fish aggregating lamp (especially blue light with high visual sensitivity) at night. After that, they swim along the boundary while avoiding the bright irradiation area, and are known to prey on small fish and the like gathering in the irradiation area while hiding in the relatively dark ship shadow of the fishing boat. According to the LED fish aggregating lamp 10 of the present embodiment, the blue convergent light area Cb in the blue irradiation area Ib can reach the blue light deeper into the sea than before. Therefore, it is possible to efficiently attract target fish and shellfish such as squids that inhabit relatively deep layers, and raise them to near the sea surface along the boundary of the blue convergent light area Cb.

[0027] And, the blue lens shadow area Sb can form the area where squids and the like prey on small fish and the like while hiding in a place other than the ship shadow and closer to the sea surface. Therefore, it is possible to further improve the efficiency of fishing with the pseudo bait of target fish and shellfish such as squids and fishing nets.

[0028] Furthermore, in the blue emission light area Rb of the blue irradiation area Ib, the blue light can be simultaneously irradiated to a wider range near the sea surface. Therefore, it is possible to simultaneously attract target fish and shellfish swimming near the sea surface, and this can also improve the fishing efficiency.

[0029] In addition, since the second LED light source 2 is provided adjacent to the first LED light source 1 in the LED fish aggregating lamp 10 of the present embodiment, as shown in FIG. 5, in front of the LED fish aggregating lamp 10, a convergent light area C (yellow convergent light area Cy) that is formed by converging a part of the emitted light (yellow light) from one of the second LED light sources 2 and is obliquely intersecting with the lens optical axis of the common lens 6 is formed, and a pair of lens shadow areas S (yellow lens shadow areas Sy) adjacent to this convergent light area C are formed. On the other hand, the other part of the emitted light (yellow light) from the second LED light source 2 is emitted as it is without being converged by the common lens 6, and a pair of emission light areas R (yellow emission light areas Ry) adjacent to the lens shadow area S are formed.

[0030] Therefore, as shown in FIG. 6, when the sea surface 8 is illuminated by the LED fish aggregating lamp 10 of the present embodiment, a yellow focused light region Cy in which the yellow light focused by the common lens is irradiated deeper, a yellow lens shadow region Sy that is the shadow of the common lens, and a yellow radiation light region Ry in which the yellow light emitted from the second LED light source 2 spreads horizontally form a yellow irradiation region Iy with a richly uneven light-dark boundary in the sea. In the figure, what is indicated by the reference sign I(2) is the yellow irradiation region in the case where no common lens is provided.

[0031] In this way, by one of the second LED light sources 2 of the LED fish aggregating lamp 10 of the present embodiment, a yellow irradiation region Iy with a richly uneven light-dark boundary can be formed in the sea. Therefore, as shown in FIG. 6, small fish, plankton, etc. that are preyed on by target fish and shellfish such as squids can be more effectively aggregated, leading to an increase in the catch of target fish and shellfish.

[0032] That is, the yellow focused light region Cy of the yellow irradiation region Iy can irradiate the yellow light preferred by small fish, plankton, etc. deeper into the sea. Therefore, small fish, etc. can be aggregated even at deeper positions, promoting the predation of squids, etc. that rise from deep in the sea, and improving the fishing efficiency by means of artificial baits, etc.

[0033] Moreover, since the light-dark boundary of the yellow irradiation region Iy is richly uneven, the aggregation distribution of small fish, etc. gathering in the yellow irradiation region Iy can be made uneven. Therefore, for squids, etc. that have the habit of trying to prey on groups of small fish, etc. while lurking in the dark from the periphery, the opportunity for predation can be significantly increased, and the fishing efficiency by means of artificial baits, etc. of target fish and shellfish can be further improved.

[0034] Furthermore, in the yellow radiation light region Ry of the yellow irradiation region Iy, the yellow light can be simultaneously irradiated over a wider range near the sea surface. Therefore, small fish, etc. swimming near the sea surface can be simultaneously attracted, and this can also improve the fishing efficiency.

[0035] In addition, in the LED fish aggregating lamp 10 of the present embodiment, since the second LED light sources 2·2 are provided on both sides of the first LED light source 1 so as to sandwich the first LED light source 1, as shown in FIG. 7, in front of the LED fish aggregating lamp 10, the yellow converging light regions Cy, yellow lens shadow regions Sy, and yellow radiating light regions Ry formed by the respective second LED light sources 2·2 overlap.

[0036] Therefore, as shown in FIG. 8, when the sea surface 8 is illuminated by the LED fish aggregating lamp 10 of the present embodiment, a pair of yellow converging light regions Cy·Cy sandwiching the lens optical axis of the common lens are formed in the sea by the second LED light sources 2·2 on both sides of the first LED light source 1, and a yellow irradiation region Iy having a more uneven boundary portion can be formed. By this, small fish and the like can be aggregated at a deeper position, the aggregation distribution of small fish and the like can be made more uneven, and the fishing efficiency of target fish and shellfish such as squids can be further improved. In the figure, what is indicated by the reference sign I(3) is the yellow irradiation region in the case where no common lens is provided.

[0037] In addition, in the LED fish aggregating lamp 10 of the present embodiment, since the second LED light sources 2·2 are provided on both sides of the first LED light source 1, as shown in FIG. 9, a composite irradiation region in which the blue irradiation region Ib by the first LED light source 1 and the yellow irradiation region Iy by the second LED light sources 2·2 on both sides overlap can be formed in the sea.

[0038] Therefore, according to the LED fish aggregating lamp 10 of the present embodiment, the yellow converging light region Cy of the yellow irradiation region Iy can be formed in the blue lens shadow region Sb of the blue irradiation region Ib, and an opportunity can be provided for target fish and shellfish such as squids to prey on small fish and the like that gather in the yellow converging light region Cy while hiding in the blue lens shadow region Sb, and the fishing efficiency of target fish and shellfish can be effectively improved.

[0039] Furthermore, according to the LED fish aggregating lamp 10 of the present embodiment, since the yellow lens shadow region Sy of the yellow irradiation region Iy can be formed in the blue focusing light region Cb of the blue irradiation region Ib, the focused blue light in the blue focusing light region Cb can reach deeper into the sea, and the fish aggregating efficiency of the target fish and shellfish to be caught can be further improved. That is, since the small fish staying in the yellow lens shadow region Sy are significantly fewer than those in the yellow focusing light region Cy, the reflection and absorption of the blue light in the blue focusing light region Cb by small fish and the like can be greatly reduced, and the focused blue light can reach deeper into the sea.

[0040] Furthermore, the LED fish aggregating lamp 10 of the present embodiment can form a composite irradiation region in which the blue irradiation region Ib by the first LED light source 1 and the yellow irradiation region Iy by the second LED light source 2 are overlapped, by the first LED light source 1, the second LED light source 2 provided on a common substrate, and a single common lens 6. Therefore, the configuration of the LED fish aggregating lamp 10 can be greatly simplified and lightened, and thereby, the roll of the fishing boat equipped with the LED fish aggregating lamp can be suppressed by lowering the center of gravity, and the fuel cost can be saved.

[0041] As described above, the LED fish aggregating lamp 10 of the present embodiment has been described, but the present invention can also be implemented in other embodiments.

[0042] For example, in the above embodiment, as the first LED light source 1, a single wavelength type LED package having one peak in the wavelength range of 470 nm to 505 nm is used. However, the present invention is not limited to this, and a fluorescent type LED package having one peak in this wavelength range of 470 nm to 505 nm and other peaks in other wavelength ranges may be used.

[0043] Also, in the above embodiment, in the second LED light source 2, a fluorescent type LED package having one peak in the wavelength range of 520 nm to 600 nm and other peaks in other wavelength ranges is used. However, a single wavelength type LED package having one peak in this wavelength range of 520 nm to 600 nm may be used.

[0044] In addition, in the above-described embodiment, the same LED package as that of the second LED light source 2 is used for the third LED light source 3, but an LED package that emits light with a wavelength different from that of the second LED light source 2 may be used.

[0045] Further, for each of the first LED light source 1, the second LED light source 2, and the third LED light source 3, an LED package that emits light with an optimal wavelength may be selected according to the type of target fish and shellfish to be captured, or the type of small fish that the target fish and shellfish prey on.

[0046] In addition, in the above-described embodiment, the second LED light sources 2 are provided on both sides adjacent to the first LED light source 1 so as to sandwich the first LED light source 1, but the second LED light source 2 may be provided only on one side adjacent to the first LED light source 1.

[0047] In the above-described embodiment, the optical axis of the common lens 6 is made to coincide with the center of the emitted light of the first LED light source 1, but the present invention is not necessarily limited to this, and the optical axis of the common lens 6 and the center of the emitted light of the first LED light source 1 may be offset. By this, a converging light region C (blue converging light region Cb) that is obliquely intersecting with the optical axis of the common lens 6 can be formed by the first LED light source 1.

[0048] In the above-described embodiment, as shown in FIGS. 4, 6, etc., the description of each irradiation region (Ib·Iy) is given in a state where the optical axis of the common lens 6 is perpendicular to the sea surface 8, but the present invention is by no means limited to this, and it goes without saying that the LED fish aggregating lamp according to the present invention can be used in a state where the optical axis of the common lens 6 is oblique to the sea surface 8. Regarding the positional relationship among the first LED light source 1, the second LED light source 2, and the common lens 6, various design modifications are possible in consideration of, for example, the mounting position of the LED fish aggregating lamp according to the present invention on the fishing boat, the mounting angle with respect to the sea surface, or the type of target fish and shellfish to be captured.

[0049] In the above embodiment, the first LED light source 1, the second LED light source 2, and the third LED light source 3 are each composed of a plurality of LED packages arranged in a line. However, the present invention is by no means limited to this. The first LED light source 1, the second LED light source 2, and the third LED light source 3 may each be composed of a plurality of LED packages arranged in a plurality of rows. Further, the first LED light source 1 may be configured by arranging a plurality of LED packages in a matrix in the vertical and horizontal directions, and the second LED light source 2 may be configured by a plurality of LED packages surrounding the periphery of the first LED light source 1.

[0050] In the above embodiment, the common lens 6 is configured by a cylindrical Fresnel lens. However, the present invention is not limited to this, and a plurality of concentric Fresnel lenses may be arranged along the column direction of the first LED package row 11L.

[0051] The present invention can also be implemented in various modified, corrected, and deformed forms based on the knowledge of those skilled in the art without departing from the gist thereof. Further, within the range where the same operation or effect is produced, any invention-specific matter may be replaced with other technologies, and the invention-specific matter that is integrally configured may be configured from a plurality of members, or the invention-specific matter that is configured from a plurality of members may be integrally configured.

Explanation of Signs

[0052] 10 LED fish attracting lamp 1 LED light source (first LED light source) 11 First LED package 11L First LED package row 2 LED light source (second LED light source) 21 Second LED package 21L Second LED package row 3 LED light source (third LED light source) 31 Third LED package 31L Third LED package row 4 Housing 41 Substrate surface 5 Cover 6 Lens (Common Lens) 7 Heat Dissipation Fin 8 Sea Surface C Converging Light Region Cb Blue Converging Light Region Cy Yellow Converging Light Region S Lens Shadow Region Sb Blue Lens Shadow Region Sy Yellow Lens Shadow Region R Radiation Light Region Rb Blue Radiation Light Region Ry Yellow Radiation Light Region

Claims

1. An LED fish aggregating lamp that irradiates light emitted from an LED light source into the sea to aggregate fish, an LED light source that emits light of a required wavelength, a lens that focuses a part of the emitted light from the LED light source, comprising: a part of the emitted light of the LED light source is focused by the lens to form a focused light area in the sea and a lens shadow area adjacent to the focused light area, and another part of the emitted light of the LED light source is irradiated into the sea without being focused by the lens to form an emitted light area adjacent to the lens shadow area in the sea. The LED fish aggregating lamp is characterized by this.

2. An LED fish aggregating lamp that irradiates light emitted from an LED light source into the sea to aggregate fish, a first LED light source that emits blue light, a second LED light source that is provided adjacent to the first LED light source and emits yellow light, a common lens that focuses a part of the emitted light from the first LED light source and a part of the emitted light from the second LED light source, comprising: a part of the emitted light of the first LED light source is focused by the common lens to form a blue focused light area in the sea and a blue lens shadow area adjacent to the blue focused light area, while another part of the emitted light of the first LED light source is irradiated into the sea without being focused by the common lens to form a blue emitted light area adjacent to the blue lens shadow area in the sea. On the other hand, a part of the emitted light of the second LED light source is focused by the common lens to form a yellow focused light area in the blue lens shadow area and a yellow lens shadow area in the blue focused light area, and another part of the emitted light of the second LED light source is radiated into the sea without being focused by the common lens to form a yellow emitted light area adjacent to the yellow lens shadow area in the sea. The LED fish aggregating lamp is characterized by this.

3. The first LED light source emits blue light having a peak in the wavelength range of 470 nm to 505 nm, and the second LED light source emits yellow light having a peak in the wavelength range of 520 nm to 600 nm. The LED fish aggregating lamp according to claim 2 is characterized by this.

4. The first LED light source is composed of a plurality of first LED packages arranged in one row or multiple rows on the substrate surface, and the second LED light source is composed of a plurality of second LED packages arranged in one row or multiple rows adjacent to the first LED package row of the first LED light source on the substrate surface. The LED fish aggregating lamp according to claim 2 or claim 3 is characterized by this.

5. The LED fish aggregating lamp according to claim 4, wherein the second LED light source is provided on both sides adjacent to the first LED light source.

6. The LED fish aggregating lamp according to claim 2 or claim 3, wherein the common lens is a Fresnel lens.

Images