JP7569997B2 - Insect attracting system and insect attracting method - Google Patents

Description

The present invention relates to an insect attracting system and an insect attracting method.

Conventionally, insect luring techniques for attracting insects are known.

As a specific example of insect attracting technology, Patent Document 1 discloses an insect trap that emits light (insect-attracting light) that attracts insects. This insect trap is equipped with a main body, a light source that irradiates the insect-attracting light to the outside of the main body, and an insect trapping means that captures the insects attracted by the insect-attracting light. Patent Document 1 also discloses that the insect-attracting light is emitted horizontally from the insect trap, and that the insect trapping means is an electric shock type means.

JP 2017-143785 A

Incidentally, there is known an illumination light irradiation device that emits illumination light for illuminating, for example, sports facilities. This illumination light can unintentionally attract insects to the illumination light irradiation device. This causes a problem in that after the illumination light irradiation device is turned off, the attracted insects spread to houses and other places outside the sports facilities.

Therefore, the above-mentioned insect trap and lighting light emitting device may be used as part of an insect attracting system. In this case, as an example, the insect attracting system includes an insect trap, a lighting light emitting device, and a support to which the insect trap and the lighting light emitting device are attached. In this insect attracting system, the lighting light emitting device is placed at a high position (for example, at a height of several tens of meters above the ground) above a support installed on the ground, and the insect trap is placed between the ground and the lighting light emitting device. For example, the insect trap is often placed near the ground (at a height within reach of a person) so that the carcasses of insects exterminated by the insect trap can be collected.

Here, we will explain what happens when the insects attracted by the illumination light leave the illumination light irradiation device of this insect attracting system, for example after the illumination light irradiation device is turned off. In this case, the insect trap can only attract insects that reach the area where the insect attracting light is irradiated (i.e., the horizontal area of the insect trap). For this reason, in the above insect attracting system, the insect trap cannot sufficiently attract insects, and it is difficult to prevent the insects attracted by the illumination light from spreading outside the sports facility.

The present invention provides an insect attracting system that can prevent insects from spreading.

The insect attracting system according to one aspect of the present invention comprises an insect attracting light irradiating device that irradiates insect attracting light including near-ultraviolet light, and an illumination light irradiating device that is installed outdoors and irradiates illumination light, and the insect attracting light irradiating device is positioned in a position that irradiates the insect attracting light to the illumination light irradiating device.

An insect attracting method according to one aspect of the present invention is an insect attracting method performed by an insect attracting system, the insect attracting system comprising an insect attracting light irradiating device that irradiates insect attracting light including near-ultraviolet light, and an illumination light irradiating device that is installed outdoors and irradiates illumination light, the insect attracting light irradiating device is placed in a position to irradiate the insect attracting light to the illumination light irradiating device, and includes a control step of controlling the insect attracting light irradiating device to irradiate the insect attracting light after the illumination light irradiating device is turned off.

The insect attracting system of the present invention can prevent insects from spreading.

FIG. 1 is a side view showing the configuration of an insect attracting system according to the first embodiment. FIG. 2 is a block diagram showing the functional configuration of the insect attracting system according to the first embodiment. FIG. 3 is a front view of the insect-attracting light emitting device according to the first embodiment. FIG. 4 is a front view of the illumination light irradiation device according to the first embodiment. FIG. 5 is a flowchart of an example of the operation of the insect attracting system according to the first embodiment. 6 is a cross-sectional view showing a cut surface of the second housing taken along line VI-VI in FIG. FIG. 7 is a front view of an illumination light irradiation device according to a modification of the first embodiment. FIG. 8 is a front view of the illumination light irradiation device according to the second embodiment. 9 is a cross-sectional view showing a cut surface of the second housing taken along line IX-IX in FIG. FIG. 10 is a front view of an illumination light irradiation device according to a modification of the second embodiment. 11 is a cross-sectional view showing a cut surface of the second housing taken along line XI-XI in FIG.

The following describes the embodiments in detail with reference to the drawings. Note that the embodiments described below are all comprehensive or specific examples. The numerical values, shapes, materials, components, component placement and connection forms, steps, and order of steps shown in the following embodiments are merely examples and are not intended to limit the present invention. Furthermore, among the components in the following embodiments, components that are not described in an independent claim are described as optional components.

Note that each figure is a schematic diagram and is not necessarily a precise illustration. In addition, in each figure, the same reference numerals are used for substantially the same configurations, and duplicate explanations may be omitted or simplified.

In addition, terms used in the following embodiments that indicate timing, such as "immediately after," should not be interpreted in a strict sense.

In addition, in this specification and drawings, the ξ, η, and ζ axes, as well as the x, y, and z axes, respectively represent the three axes of a three-dimensional Cartesian coordinate system. In each embodiment and each modified example, the front surface of the first housing body is parallel to the ξη plane, and the ζ axis direction is perpendicular to the ξη plane. Furthermore, the front surface of the second housing body is parallel to the xy plane, and the x axis direction is perpendicular to the xy plane.

(Embodiment 1)
[composition]
First, the configuration of an insect attracting system 1 according to an embodiment will be described.

Figure 1 is a side view showing the configuration of an insect attracting system 1 according to this embodiment.

Figure 2 is a block diagram showing the functional configuration of the insect-attracting system 1 according to this embodiment.

As shown in Figures 1 and 2, the insect attracting system 1 according to this embodiment is a system including an insect attracting light irradiating device 100 that irradiates insect attracting light L1, an illumination light irradiating device 200 that irradiates illumination light L2, a first stand 101, a second stand 201, a control device 300, and a support 400.

The insect attracting system 1 is a system used, for example, in outdoor athletic facilities 10. The ground G of the athletic facility 10 is illuminated by the illumination light L2 emitted by the illumination light irradiation device 200. At this time, the illumination light L2 unintentionally attracts insects P, causing them to attach to the illumination light irradiation device 200. In this insect attracting system 1, the insect attracting light irradiation device 100 irradiates the insect attracting light L1, thereby continuing to attract the attached insects P to the periphery of the insect attracting system 1, in other words, the attached insects P can be kept in the insect attracting system 1. Such an insect attracting system 1 prevents the insects P from spreading outside the athletic facility 10.

Next, we will explain the components of the insect attracting system 1.

[Control device]
First, the control device 300 will be described.

The control device 300 is a processing device that controls the turning on and off of the insect-attracting light irradiation device 100 and the illumination light irradiation device 200. That is, the control device 300 controls the insect-attracting light irradiation device 100 to emit insect-attracting light L1, and controls the illumination light irradiation device 200 to emit illumination light L2. The control device 300 also controls the intensity of the light emitted by the insect-attracting light irradiation device 100 and the illumination light irradiation device 200. That is, the control device 300 has a dimming function. The control device 300 is realized, for example, by a microcomputer, but may also be realized by a processor.

[Light irradiation device]
Here, an insect-attracting light irradiating device 100 and an illumination light irradiating device 200, which are light irradiating devices, will be described.

First, we will explain the insect-attracting light irradiation device 100.

The insect-attracting light irradiation device 100 is a light irradiation device that irradiates insect-attracting light L1 including near-ultraviolet light. The insect-attracting light irradiation device 100 also irradiates the insect-attracting light L1 to the illumination light irradiation device 200. In this embodiment, the insect-attracting light L1 includes near-ultraviolet light and blue light, and is light for attracting insects P to the insect-attracting system 1. In other words, the insect-attracting light L1 is non-white light. The near-ultraviolet light is light that mainly has a wavelength of 300 nm or more and 400 nm or less. More specifically, the near-ultraviolet light is light that has a peak wavelength in the range of 350 nm or more and 390 nm or less. The peak wavelength of the near-ultraviolet light is preferably 360 nm or more and 390 nm or less, and more preferably 365 nm or more and 385 nm or less. The near-ultraviolet light may not include light other than light with a wavelength of 300 nm or more and 400 nm or less. Further, the near-ultraviolet light may be light whose intensity other than light with a wavelength of 300 nm to 400 nm is 1/10 or less of the intensity of the peak wavelength. Blue light is light whose wavelength is mainly 430 nm to 490 nm. More specifically, blue light is light whose peak wavelength is in the range of 430 nm to 470 nm. The peak wavelength of blue light is preferably 440 nm to 460 nm, and more preferably 445 nm to 455 nm. The blue light may not include light other than light with a wavelength of 430 nm to 490 nm. The blue light may be light whose intensity other than light with a wavelength of 430 nm to 490 nm is 1/10 or less of the intensity of the peak wavelength.

Insects P have a habit of moving in response to light, called motility. Here, insects P have a positive motility of moving toward light. The wavelength range of near-ultraviolet light is a wavelength range in which the relative luminosity of typical insects P is high. Therefore, when the insect-attracting light L1 contains near-ultraviolet light, insects P move toward the insect-attracting light L1, that is, insects P are more likely to be attracted to the insect-attracting light L1. The wavelength range of blue light is a wavelength range in which the relative luminosity of insects P, such as Hemiptera, is high. Similarly, when the insect-attracting light L1 contains blue light, insects such as Hemiptera are more likely to be attracted to the insect-attracting light L1.

Figure 3 is a front view of the insect-attracting light irradiation device 100 according to this embodiment.

As shown in FIG. 3, the insect-attracting light irradiating device 100 has a plurality of first light-emitting elements 110, a plurality of second light-emitting elements 120, a first housing 160, and two first mounting parts 180. The insect-attracting light irradiating device 100 also has a circuit board (not shown). In FIG. 3, for the purpose of identification, the plurality of first light-emitting elements 110 are marked with light dots, and the plurality of second light-emitting elements 120 are marked with dark dots.

Each of the first light-emitting elements 110 is an LED element implemented on the circuit board and configured with an LED (Light Emitting Diode) that emits near-ultraviolet light. As shown in FIG. 3, the first light-emitting elements 110 are arranged in a 3×4 matrix, but are not limited to this.

Each of the second light-emitting elements 120 is also mounted on the circuit board and is an LED element composed of an LED that emits blue light. As shown in FIG. 3, the second light-emitting elements 120 are arranged so as to sandwich the first light-emitting elements 110 arranged in a matrix, but this is not limited to this.

The first light-emitting elements 110 and the second light-emitting elements 120 are individually packaged surface mount device (SMD) type LED elements. Each of the first light-emitting elements 110 and the second light-emitting elements 120 includes a container (package) made of resin or the like, an LED chip (bare chip) disposed in the container, and a sealing member that seals the LED chip.

Specifically, each of the multiple first light-emitting elements 110 is an SMD-type near-ultraviolet LED element that emits near-ultraviolet light. In this case, the LED chip is a near-ultraviolet LED chip that emits near-ultraviolet light when powered, and the sealing material filled in the container can be a glass material or a fluorine-based resin that is not easily deteriorated by near-ultraviolet light.

Similarly, each of the second light-emitting elements 120 is an SMD type blue LED element that emits blue light. In this case, a blue LED chip that emits blue light when powered can be used as the LED chip, and silicone resin can be used as the sealing material filled in the container.

The first light-emitting elements 110 and the second light-emitting elements 120 may themselves be LED chips (bare chips). In this case, the circuit board and the first light-emitting elements 110 and the second light-emitting elements 120 form a COB (chip on board) structure in which the LED chips (the first light-emitting elements 110 and the second light-emitting elements 120) are directly mounted on the circuit board.

The multiple first light-emitting elements 110 and the multiple second light-emitting elements 120 may be semiconductor light-emitting elements such as semiconductor lasers, or other types of light-emitting elements such as EL elements such as organic EL (Electro Luminescence) or inorganic EL.

The first housing 160 is a member having a first housing main body part 161 and a first cover part 162.

The first housing body 161 is a case made of metal. Specifically, the first housing body 161 may be made of one or more metals selected from the group consisting of aluminum, silver, gold, iron, and copper, and here, the first housing body 161 is made of aluminum. The first housing body 161 may also be a case made of resin.

The internal space of the first housing body 161 is a closed space that houses at least the multiple first light-emitting elements 110 and the multiple second light-emitting elements 120. Therefore, the multiple first light-emitting elements 110 and the multiple second light-emitting elements 120 are protected by the first housing body 161. The insect-attracting light L1, which includes near-ultraviolet light and blue light, emitted from the multiple first light-emitting elements 110 and the multiple second light-emitting elements 120 travels from the first housing body 161 toward the first cover 162.

The first cover part 162 is a flat plate-shaped member that is attached to the first housing main body part 161. The shape of the first cover part 162 may be curved or dome-shaped.

The first cover portion 162 is a light-transmitting material, more specifically, a material that transmits at least near-ultraviolet light and blue light. The transmittance of the first cover portion 162 in the wavelength range of near-ultraviolet light and blue light is preferably 50% or more, more preferably 70% or more, even more preferably 80% or more, and even more preferably 90% or more. Therefore, the insect-attracting light L1 containing near-ultraviolet light and blue light that reaches the first cover portion 162 passes through the first cover portion 162 and is released into the space outside the insect-attracting light irradiation device 100.

The first cover part 162 is made of a material that transmits near-ultraviolet light and blue light, and in this case is made of borosilicate glass. Note that the first cover part 162 is not limited to the above as long as it is made of a material that transmits near-ultraviolet light and blue light, and may be made of soda glass, quartz glass, or the like.

The first cover portion 162 may also be able to scatter (diffuse) near-ultraviolet light and blue light. Here, a light scattering layer is provided on the inner surface of the first cover portion 162. The inner surface of the first cover portion 162 refers to the surface of the first cover portion 162 on the side where the multiple first light-emitting elements 110 and the multiple second light-emitting elements 120 are arranged, in other words, the surface on the negative side of the ζ-axis. This light scattering layer is, for example, a fine uneven structure formed by subjecting the borosilicate glass constituting the first cover portion 162 to a chemical etching process or a sandblasting process.

The light scattering layer is not limited to this. For example, the light scattering layer may be a diffusion film in which fine particles (e.g., silica fine particles) that scatter near-ultraviolet light and blue light are dispersed in a base material. In addition, the first cover portion 162 itself may be molded using borosilicate glass in which fine particles that scatter near-ultraviolet light and blue light are dispersed.

The shape of the first housing 160 (i.e., the shape of the first housing main body 161 and the first cover 162 combined) is a rectangular parallelepiped. The face of the first housing 160 shown in the front view of FIG. 3 is the front face of the first housing 160. In other words, the front face of the first housing 160 is the face on the positive side of the ζ-axis, and parallel to the ξ-axis and η-axis, among the six faces of the rectangular parallelepiped shape that is the shape of the first housing 160.

The front surface of the first housing 160 is composed of the front surface of the first housing main body 161 and the front surface of the first cover part 162. The front surface of the first housing main body 161 is the surface on the ζ-axis positive side of the first housing main body 161, which is parallel to the ξ-axis and η-axis. The front surface of the first cover part 162 is the surface on the ζ-axis positive side of the flat plate shape of the first cover part 162, which is parallel to the ξ-axis and η-axis.

The two first mounting parts 180 are members for connecting the first housing main body part 161 and the first stand 101. The two first mounting parts 180 are a pair of members arranged to sandwich the first housing main body part 161. Each of the two first mounting parts 180 is a member made of metal or resin and has a flat plate shape.

The first housing body 161 is rotatably connected to the two first mounting parts 180. For example, the rotation direction R1 of the first housing body 161 is indicated by an arrow in FIG. 1, and the first housing body 161 is rotated around a rotation axis parallel to the ξ axis in FIG. 3. The two first mounting parts 180 and the first frame 101 may be fixed.

Next, we will explain the illumination light irradiation device 200.

The illumination light irradiation device 200 is a light irradiation device that is installed outdoors and emits illumination light L2. The illumination light L2 is light suitable for use in, for example, the sports facility 10. The illumination light L2 is, for example, light in the wavelength range of visible light, and in this case, is white light. The correlated color temperature of the illumination light L2 is 5000K or more and 6000K or less, and the average color rendering index Ra is 80 or more.

In addition, since the illumination light L2 is white light, it contains blue light. In the present embodiment, the illumination light L2 is white light, but it also contains near-ultraviolet light. Therefore, when the illumination light L2 illuminates the ground G, it unintentionally attracts insects P due to the blue light and near-ultraviolet light contained in the illumination light L2. Note that the illumination light L2 is not light intended to actively attract insects.

Furthermore, the insect-attracting light L1 emitted by the insect-attracting light irradiation device 100 has a lower radiant flux than the illumination light L2 emitted by the illumination light irradiation device 200. For example, the radiant flux of the insect-attracting light L1 is 0.01 to 0.5 times the radiant flux of the illumination light L2. For example, the radiant flux of the insect-attracting light L1 may be 0.03 to 0.3 times, or 0.05 to 0.1 times, the radiant flux of the illumination light L2.

Figure 4 is a front view of the illumination light irradiation device 200 according to this embodiment.

As shown in FIG. 4, the illumination light irradiation device 200 has a light emitting unit 210, a second housing 260, and two second mounting units 280. The illumination light irradiation device 200 also has a circuit board (not shown).

The light-emitting unit 210 is an LED element mounted on the circuit board and configured with an LED that emits illumination light L2, which is white light.

The light emitting unit 210 is an SMD type LED element. The light emitting unit 210 includes a plurality of containers (packages) made of resin or the like, LED chips (bare chips) arranged in each of the plurality of containers, and a sealing member that seals each of the plurality of LED chips.

Specifically, the light-emitting unit 210 is an SMD-type white LED element that emits white light. In this case, a blue LED chip that emits blue light when powered can be used as the LED chip, and a silicone resin containing a yellow phosphor (phosphor-containing resin) can be used as the sealing material filled in the container.

The light-emitting unit 210 may be an LED element that is a plurality of LED chips (bare chips). In this case, the circuit board and the light-emitting unit 210 have a COB structure.

The light-emitting unit 210 may also be a semiconductor light-emitting element such as a semiconductor laser, or another type of light-emitting element such as an EL element such as an organic EL or inorganic EL.

The second housing 260 is a member having a second housing main body portion 261 and a second cover portion 262.

The second housing body 261 is a case made of a material that reflects the insect-attracting light L1 (i.e., near-ultraviolet light and blue light). Specifically, the second housing body 261 is a metal case. More specifically, the second housing body 261 may be made of one or more metals selected from aluminum, silver, gold, iron, and copper, and here, the second housing body 261 is made of aluminum, which has a high reflectance in the wavelength range of the insect-attracting light L1. The second housing body 261 may also be a resin case.

The internal space of the second housing body 261 is at least a closed space that houses the light-emitting unit 210. Therefore, the light-emitting unit 210 is protected by the second housing body 261. The illumination light L2, which is white light emitted from the light-emitting unit 210, travels from the second housing body 261 toward the second cover unit 262.

The second cover part 262 is a flat plate-shaped member that is attached to the second housing main body part 261. The shape of the second cover part 262 may be curved or dome-shaped.

The second cover portion 262 is a light-transmitting member, more specifically, a member that transmits at least visible light. The transmittance of the second cover portion 262 in the wavelength range of visible light is preferably 50% or more, more preferably 70% or more, even more preferably 80% or more, and even more preferably 90% or more. Therefore, the illumination light L2, which is white light that reaches the second cover portion 262, passes through the second cover portion 262 and is emitted into the space outside the illumination light irradiation device 200.

The second cover portion 262 is made of a material that transmits visible light, and in this case, is made of a transparent resin, acrylic resin. Note that the material of the second cover portion 262 is not limited to the above as long as it transmits visible light, and it may be made of a transparent resin, such as polycarbonate resin.

The second cover part 262 may also be able to scatter (diffuse) visible light. Here, a light scattering layer is provided on the inner surface of the second cover part 262. The inner surface of the second cover part 262 is the surface of the second cover part 262 on the side where the light emitting part 210 is arranged, in other words, the surface on the negative side of the z-axis. This light scattering layer is, for example, a fine uneven structure formed by subjecting the acrylic resin constituting the second cover part 262 to a chemical etching process or a sandblasting process.

The light scattering layer is not limited to this. For example, the light scattering layer may be a diffusion film in which fine particles that scatter visible light (e.g., silica fine particles) are dispersed in a base material. In addition, the second cover portion 262 itself may be molded using an acrylic resin in which fine particles that scatter visible light are dispersed.

The shape of the second housing 260 (i.e., the shape of the second housing main body 261 and the second cover 262 combined) is a rectangular parallelepiped. The surface of the second housing 260 shown in the front view of FIG. 4 is the front surface of the second housing 260. In other words, the front surface of the second housing 260 is the surface on the positive z-axis side, parallel to the x-axis and y-axis, among the six surfaces of the rectangular parallelepiped shape that is the shape of the second housing 260.

The front surface of the second housing 260 is composed of the front surface 261a of the second housing main body 261 and the front surface of the second cover 262. The front surface 261a of the second housing main body 261 is the surface on the z-axis positive side of the second housing main body 261, which is parallel to the x-axis and y-axis. The front surface of the second cover 262 is the surface on the z-axis positive side of the flat plate shape of the second cover 262, which is parallel to the x-axis and y-axis. As described above, the illumination light L2 passes through the second cover 262 and is emitted into the space outside the illumination light irradiation device 200. In other words, the front surface of the second cover 262 is a light-emitting surface that emits the illumination light L2.

The two second mounting parts 280 are members for connecting the second housing main body part 261 and the second stand 201. The two second mounting parts 280 are a pair of members arranged to sandwich the second housing main body part 261. Each of the two second mounting parts 280 is a member made of metal or resin and has a flat plate shape.

The second housing body 261 is rotatably connected to the two second mounting parts 280. For example, the rotation direction R2 of the second housing body 261 is indicated by an arrow in FIG. 1, and the second housing body 261 is rotated around a rotation axis parallel to the x-axis in FIG. 4. The two second mounting parts 280 and the second frame 201 may be fixed.

In this embodiment, the insect attracting system 1 includes one illumination light irradiation device 200, but is not limited to this. For example, the insect attracting system 1 may include multiple illumination light irradiation devices 200. The number of illumination light irradiation devices 200 included in the insect attracting system 1 may be determined depending on the size of the ground G illuminated by the illumination light L2.

[Support]
Next, the support pillar 400 will be described.

The support 400 is an elongated member that supports the insect-attracting light irradiation device 100 and the illumination light irradiation device 200 via the first frame 101 and the second frame 201. For example, the support 400 is a member having a length of several tens of meters, with one end of the elongated shape being installed on the ground. Note that in this embodiment, the insect attracting system 1 includes one support 400, but is not limited to this. For example, the insect attracting system 1 may include two supports 400, with one support 400 supporting the insect-attracting light irradiation device 100 and the other support 400 supporting the illumination light irradiation device 200.

[Mounting stand]
The first frame 101 and the second frame 201 will be further described.

The first mount 101 is a member that is attached to the support 400 and connects the support 400 to the insect-attracting light emitting device 100. For example, the first mount 101 has a metal flat plate member, and the two first mounting parts 180 of the insect-attracting light emitting device 100 are attached to one side of the flat plate member.

The second mount 201 is a member that is attached to the support 400 and connects the support 400 to the illumination light irradiation device 200. For example, the second mount 201 has a metal flat plate member, and the two second mounting parts 280 of the illumination light irradiation device 200 are attached to one surface of the flat plate member.

In order for the illumination light L2 from the illumination light application device 200 to efficiently illuminate the ground G, it is preferable that the second mount 201 be attached to the highest position of the support 400.

In addition, since the insect-attracting light irradiation device 100 connected to the first mount 101 irradiates the insect-attracting light L1 to the illumination light irradiation device 200, here the first mount 101 is attached at a lower position on the support 400 than the second mount 201. In other words, the first mount 101 is attached between the ground on which the support 400 is installed and the second mount 201. The first mount 101 should be attached at a position higher than the height of people around the insect-attracting system 1, for example, at a height of 3 m or more.

[Relationship between insect-attracting light irradiation device and illumination light irradiation device]
Here, the relationship between the insect-attracting light irradiating device 100 and the illumination light irradiating device 200 will be described.

As shown in FIG. 1, the insect-attracting light irradiation device 100 is disposed in a position in which it irradiates the insect-attracting light L1 to the illumination light irradiation device 200. Specifically, the insect-attracting light irradiation device 100 is disposed in a position in which it irradiates the insect-attracting light L1 to the front surface of the second housing 260. In other words, the insect-attracting light L1 reaches the front surface of the second cover part 262, which is the light-emitting surface that emits the illumination light L2, and the front surface 261a of the second housing main body part 261. It can also be said that the insect-attracting light irradiation device 100 is disposed so that the first cover part 162 of the insect-attracting light irradiation device 100 and the second cover part 262 of the illumination light irradiation device 200 face each other.

More specifically, in this embodiment, the insect-attracting light irradiating device 100 is arranged so that the illumination light irradiating device 200 is located on the optical axis of the insect-attracting light L1. The optical axis is the direction of the insect-attracting light L1 emitted by the insect-attracting light irradiating device 100 that travels toward the angle at which the radiation intensity is the highest. Here, the optical axis is parallel to the ζ axis. However, this is not limited to this, and the insect-attracting light irradiating device 100 may be arranged so that the illumination light irradiating device 200 is located within a range where the radiation angle of the insect-attracting light L1 is within 30°. Here, the radiation angle of the insect-attracting light L1 is the angle between the optical axis and the emitted insect-attracting light L1.

In this embodiment, the control device 300 controls the turning on and off of the illumination light irradiation device 200. Here, the control device 300 controls the illumination light irradiation device 200 to irradiate the illumination light L2.

When the illumination light irradiation device 200 irradiates the illumination light L2, the insect P is attracted to the illumination light L2. For example, at this time, the attracted insect P attaches itself to the front surface of the second housing 260, that is, it rests on the front surface of the second housing 260 (for example, the front surface 261a of the second housing main body 261).

The control device 300 then turns off the illumination light irradiation device 200. Immediately after this, the control device 300 turns on the insect-attracting light irradiation device 100. In other words, the control device 300 controls the insect-attracting light irradiation device 100 to irradiate insect-attracting light L1. As a result, the insect-attracting light L1 is irradiated onto the front surface of the second housing 260 (more specifically, the front surface 261a of the second housing main body 261).

As described above, the second housing main body 261 is made of aluminum that reflects the insect attracting light L1. Therefore, the insect attracting light L1 is reflected by the front surface 261a. For this reason, an insect P that has attached itself to the front surface 261a visually sees the insect attracting light L1 being emitted from the front surface 261a, which is the area around the insect P. In other words, the insect P visually sees the area around the insect P as if it is emitting light. As described above, the insect P has a habit of being attracted to the insect attracting light L1, and therefore remains attached to the front surface 261a that emits the insect attracting light L1. In other words, the insect P is unlikely to leave the front surface 261a to which it is attached.

In addition, once an insect P has attached itself to the front surface 261a, it may leave the front surface 261a (for example, the insect P may fly away). In this way, when the insect P leaves the front surface 261a, the insect P visually recognizes that the insect-attracting light L1 is being emitted from the front surface 261a, and may be attracted to this insect-attracting light L1 and attach itself to the front surface 261a again. Similarly, when the insect P leaves the front surface 261a, the insect P may be attracted to the insect-attracting light L1 emitted by the insect-attracting light irradiation device 100 and may attach itself to, for example, the front surface of the insect-attracting light irradiation device 100, particularly the first cover part 162.

As described above, the insect P remains attached to the front surface 261a, or even if the insect P moves away from the front surface 261a, it attaches to the front surface 261a again. In other words, the insect attracting light L1 continues to attract the attached insect P to the periphery of the insect attracting system 1, which means that the attached insect P can be kept in the insect attracting system 1. Such an insect attracting system 1 can prevent the insect P from spreading outside the competition facility 10.

Even if the illumination light irradiation device 200 continues to irradiate the illumination light L2, it is possible to prevent the insects from spreading. However, since the illumination light L2 is a strong white light, if the illumination light irradiation device 200 continues to irradiate the illumination light L2, for example, at night after the competition has ended at the competition facility 10, problems such as light pollution may occur.

In addition, the illumination light L2 is stronger than the insect-attracting light L1, and therefore consumes more power than the insect-attracting light L1. Therefore, by using the insect-attracting light L1 instead of the illumination light L2 to prevent the insects P from scattering, power consumption can be reduced.

In addition, in this embodiment, the first stand 101 connected to the insect-attracting light irradiating device 100 is attached to a lower position on the support 400 than the second stand 201 connected to the illumination light irradiating device 200. Therefore, the insect-attracting light irradiating device 100 irradiates the insect-attracting light L1 above the support 400. In other words, the insect-attracting light irradiating device 100 does not irradiate the insect-attracting light L1 below the support 400.

This makes it difficult for the insect-attracting light L1 emitted by the insect-attracting light irradiation device 100 to reach people in the vicinity of the insect-attracting system 1. This makes it possible to suppress the effects on the human body of the near-ultraviolet light contained in the insect-attracting light L1.

[Example of operation]
An example of the operation of the insect-attracting system 1 will now be described.

Figure 5 is a flowchart of an example of the operation of the insect-attracting system 1 according to this embodiment.

First, the control device 300 turns on the illumination light irradiation device 200 (S10). That is, the illumination light irradiation device 200 emits illumination light L2 to illuminate the ground G of the competition facility 10. More specifically, the control device 300 controls the illumination light irradiation device 200 to emit illumination light L2.

Furthermore, the control device 300 turns off the illumination light irradiation device 200 (S20). More specifically, the control device 300 controls the illumination light irradiation device 200 to stop emitting the illumination light L2. Step S20 is performed, for example, after the competition at the competition facility 10 has ended.

Next, after step S20 is completed, that is, after the illumination light irradiation device 200 is turned off, the control device 300 controls the insect-attracting light irradiation device 100 to irradiate the insect-attracting light L1 (S30). Step S30 is the control step. As described above, the insect-attracting light irradiation device 100 irradiates the insect-attracting light L1 to the illumination light irradiation device 200.

The insects P are attracted to the front surface of the second housing 260 by the illumination light L2 emitted in step S10. Therefore, by performing step S30 immediately after the illumination light irradiation device 200 is turned off in step S20, the attracted insects P are prevented from scattering.

The order of steps S20 and S30 may also be reversed. That is, before the illumination light irradiation device 200 is turned off, the control device 300 may control the insect-attracting light irradiation device 100 to irradiate the insect-attracting light L1. In this case, even after the illumination light irradiation device 200 is turned off, the control device 300 may control the insect-attracting light irradiation device 100 to continue irradiating the insect-attracting light L1.

As described above, in this embodiment, at least after the illumination light irradiation device 200 is turned off, the control device 300 controls the insect-attracting light irradiation device 100 to irradiate the insect-attracting light L1. This prevents insects P from spreading outside the competition facility 10.

[First Irradiation Region]
Here, the first irradiation region B1 will be described.

As shown in FIG. 4, the illumination light irradiation device 200 has a first irradiation area B1 in the second housing 260, where the insect-attracting light L1 is irradiated. More specifically, the illumination light irradiation device 200 has the first irradiation area B1 in the front surface 261a of the second housing main body 261. Here, the first irradiation area B1 corresponds to the area within the dashed rectangle in the front view shown in FIG. 4. Note that the shape of the first irradiation area B1 is not limited to this.

Furthermore, the detailed structure of the first irradiation area B1 will be explained using Figure 6.

Figure 6 is a cross-sectional view showing a cut surface of the second housing 260 taken along line VI-VI in Figure 4. More specifically, Figure 6 shows a cross-sectional view of the first irradiation area B1 of the illumination light irradiation device 200. Figure 6 also shows an enlarged cross-sectional view of a portion of the cross section of the second housing main body 261 within a rectangular range enclosed by a two-dot chain line rectangle.

As shown in FIG. 4 and FIG. 6, the illumination light irradiation device 200 has a structure 290 that protrudes from the second housing 260 in the first irradiation region B1. More specifically, the illumination light irradiation device 200 has a structure 290 that protrudes in the positive direction of the z-axis from the front surface 261a of the second housing main body 261. Here, the illumination light irradiation device 200 has multiple (four) structures 290.

The multiple structures 290 are arranged in the first irradiation region B1 so as to extend in a stripe shape. That is, the multiple structures 290 are arranged side by side in the width direction (y-axis direction). The stripe shape is a shape in which multiple structures 290 extending parallel to each other are arranged in the width direction at a predetermined interval.

The stripe shape is also called a line-and-space shape in which lines and spaces are arranged alternately and extend in the same direction. A structure 290 corresponds to a line, and a recess between two adjacent structures 290 corresponds to a space. The multiple structures 290 do not intersect with each other.

The shapes of the multiple structures 290 are the same as each other, but may be different from each other. Also, the structures 290 are arranged at equal intervals, but may be different.

6, in a cross section parallel to the width direction of the structure 290, the shape of the structure 290 is rectangular, but is not limited to this. For example, the cross-sectional shape of the structure 290 may be trapezoidal, V-shaped, U-shaped, square, rectangular, or semicircular. The multiple structures 290 may include multiple structures 290 with different cross-sectional shapes. In this embodiment, the surface on the z-axis positive side of each of the multiple structures 290 is the upper surface 291.

In this embodiment, the height H (length in the z-axis direction) and width D1 (length in the y-axis direction) of each of the multiple structures 290, as well as the pitch D2 of the multiple structures 290, are on the order of millimeters. For example, the height H and width D1 may be 1 mm or more and 30 mm or less, more preferably 3 mm or more and 25 mm or less, and even more preferably 5 mm or more and 20 mm or less. Furthermore, for example, the pitch D2 may be 2 mm or more and 60 mm or less, more preferably 6 mm or more and 50 mm or less, and even more preferably 10 mm or more and 40 mm or less.

In this embodiment, the multiple structures 290 are preferably made of the same material as the second housing main body 261, which is aluminum in this example.

For example, a case will be described where insect-attracting light L1 reaches the first irradiation area B1 at an incident angle θ. Here, we will explain insect-attracting light L1 that reaches the upper surface 291 and insect-attracting light L1 that reaches the space between two adjacent structures 290 (i.e., the recess).

First, the insect-attracting light L1 that reaches the upper surface 291 will be described. Since the structure 290 is made of a material that reflects the insect-attracting light L1, this insect-attracting light L1 is reflected by the upper surface 291. More specifically, in this embodiment, since the structure 290 is made of aluminum, which has a high reflectance in the wavelength range of the insect-attracting light L1, the reflected light of the insect-attracting light L1 emitted from the upper surface 291 becomes a stronger light.

Next, it also reaches between two adjacent structures 290. Because the insect attracting light L1 reaches the first irradiation area B1 at an incident angle θ, the front surface 261a has a shadow area 261b where the insect attracting light L1 is blocked by multiple structures 290. In other words, the shadow area 261b is an area where the insect attracting light L1 is difficult to reach. In FIG. 6, a virtual line IL parallel to the insect attracting light L1 is shown. Here, the shadow area 261b is an area of the front surface 261a that is on the negative side of the y-axis from the point where the virtual line IL and the front surface 261a meet. In such a shadow area 261b, the insect attracting light L1 is difficult to reach, so the reflected light of the insect attracting light L1 emitted from the shadow area 261b is weaker than the reflected light of the insect attracting light L1 emitted from the upper surface 291.

Therefore, for example, when an insect P that has attached itself to the front surface of the second housing 260 and then separated from the front surface of the second housing 260 looks at the first illuminated area B1, the upper surface 291 appears bright and the shadow area 261b appears dark.

Here, the contrast ratio is the ratio between the radiant flux of the reflected light of the insect-attracting light L1 on the upper surface 291 and the radiant flux of the reflected light of the insect-attracting light L1 on the shadow region 261b. More specifically, the contrast ratio is the value obtained by dividing the radiant flux of the reflected light of the insect-attracting light L1 on the upper surface 291 by the radiant flux of the reflected light of the insect-attracting light L1 on the shadow region 261b. However, without being limited to this, the contrast ratio may be the value obtained by dividing the luminous flux of the reflected light of the insect-attracting light L1 on the upper surface 291 by the luminous flux of the reflected light of the insect-attracting light L1 on the shadow region 261b. Note that the luminous flux in this case is a numerical value that takes into account the relative luminous efficiency of the insect P.

In the insect attracting system 1 configured in this manner, the contrast ratio of the light based on the insect attracting light L1 in the first irradiation region B1 (i.e., the light reflected from the insect attracting light L1) is a predetermined value. As an example, the predetermined value may be 2 or more and 100 or less, more preferably 5 or more and 80 or less, or even more preferably 10 or more and 50 or less, but is not limited to this.

In this embodiment, insect P visually recognizes first illumination region B1, which exhibits a contrast ratio of a predetermined value. Insect P has a tendency to be more easily attracted when it sees a bright area, such as upper surface 291, adjacent to a dark area, such as shadow area 261b (and thus a high contrast ratio).

In other words, when the contrast ratio is within the above range, the insects P are more likely to be attracted by the insect-attracting light L1 (more specifically, the reflected light of the insect-attracting light L1). In other words, in the insect-attracting system 1, when the contrast ratio of the light of the reflected insect-attracting light L1, which is light based on the insect-attracting light L1 in the first irradiation area B1, reaches a predetermined value, the insects P are more likely to be attracted. In other words, an insect-attracting system 1 that can better prevent the insects P from spreading outside the competition facility 10 is realized.

In addition, in this embodiment, the illumination light irradiation device 200 has a structure 290 that protrudes from the second housing 260 in the first irradiation area B1.

This ensures that the contrast ratio falls within the above range, making insect P more likely to be attracted.

Furthermore, such a structure 290 makes it easier for insects P to attach to the front surface of the second housing 260. In other words, the structure 290 becomes a so-called foothold for insects P. This makes it easier to keep attached insects P in the insect attracting system 1. In other words, an insect attracting system 1 that can better prevent insects P from spreading outside the competition facility 10 is realized.

In addition, in this embodiment, the illumination light irradiation device 200 has multiple structures 290 that extend in a stripe shape. This makes the contrast ratio a predetermined value, making it easier for insects P to be attracted.

The second housing main body 261 and the multiple structures 290 are preferably molded as a single unit. This makes it easier to manufacture the illumination light irradiation device 200. Furthermore, by providing multiple metal structures 290, heat generated by the light emitting section 210 can be easily dissipated. This results in an illumination light irradiation device 200 with high light emission efficiency.

The insect-attracting light irradiation device 100 may be arranged in a position in which it irradiates the insect-attracting light L1 to the second stand 201 in addition to the illumination light irradiation device 200 described above. In this case, for example, the insect-attracting light irradiation device 100 may be arranged so that the illumination light irradiation device 200 and the second stand 201 are positioned within a range in which the radiation angle of the insect-attracting light L1 is within 30°. Furthermore, the second stand 201 may be made of a material that reflects the insect-attracting light L1 (e.g., aluminum). At this time, the insect-attracting light L1 is reflected by the second stand 201.

The illumination light L2 may cause insects P to attach to the second stand 201 located near the illumination light irradiation device 200.

Even in this case, because the second frame 201 reflects the insect-attracting light L1, the insect P attached to the second frame 201 visually sees the insect-attracting light L1 being emitted from the second frame 201, which is around the insect P. The insect P remains attached to the second frame 201, which emits the insect-attracting light L1. In other words, the attached insect P can be kept in the insect attracting system 1. Such an insect attracting system 1 can prevent the insects P from spreading outside the competition facility 10.

Furthermore, the second stand 201 has a second irradiation area into which the insect-attracting light L1 is irradiated, and the contrast ratio of the light based on the insect-attracting light L1 in the second irradiation area is preferably the above-mentioned predetermined value. As with the first irradiation area B1 of the illumination light irradiation device 200, the contrast ratio of the light based on the insect-attracting light L1 in the second irradiation area is a predetermined value, so that the insects P are more likely to be attracted to the second stand 201.

Furthermore, the second mount 201 may have a plurality of structures protruding from the surface of the second mount 201 in the second irradiation region, similar to the illumination light irradiation device 200. This is expected to provide the same effect as when the illumination light irradiation device 200 has the structures 290.

Furthermore, the insect-attracting light emitting device 100 may be irradiated with insect-attracting reflected light, which is light obtained by reflecting the insect-attracting light L1 by the illumination light emitting device 200 and the second stand 201, etc. In this case, the insect-attracting light emitting device 100 has a third irradiation area B3 (see FIG. 3) in the first housing 160 (more specifically, the first housing main body 161) where the insect-attracting reflected light is irradiated. The contrast ratio of the light based on the insect-attracting reflected light in this third irradiation area B3 may be the above-mentioned predetermined value. As with the first irradiation area B1 of the illumination light emitting device 200, by having the contrast ratio of the light based on the insect-attracting reflected light in the third irradiation area B3 be a predetermined value, the insects P are more likely to be attracted to the front surface of the first housing main body 161.

Furthermore, the insect-attracting light irradiation device 100 may have a plurality of structures protruding from the front surface of the first housing main body 161 in the third irradiation area B3, similar to the illumination light irradiation device 200. This is expected to produce the same effect as when the illumination light irradiation device 200 has the structures 290.

(Modification of the first embodiment)
Next, an insect attracting system according to a modified example of the first embodiment will be described with reference to FIG.

Figure 7 is a front view of the illumination light irradiation device 200a according to this modified example.

The insect attracting system according to this modification differs from the insect attracting system 1 according to embodiment 1 in that it includes an illumination light irradiation device 200a instead of an illumination light irradiation device 200.

Furthermore, the illumination light irradiation device 200a differs from the illumination light irradiation device 200 according to embodiment 1 in that it has multiple dot-shaped structures 290a instead of multiple structures 290.

Each of the multiple structures 290a according to this modified example has a dot shape when viewed from the front as shown in FIG. 7. More specifically, the shape of each of the multiple structures 290a is cylindrical, but is not limited to this, and may be a cone shape or a truncated cone shape. In addition, each of the multiple structures 290a is disposed spaced apart from one another in the first irradiation region B1.

Even if the illumination light irradiation device 200 has multiple structures 290a like this, the contrast ratio described above will be a predetermined value, making it easier for insects P to be attracted. This realizes an insect attracting system that can better prevent insects P from spreading outside the competition facility 10.

The shape of each of the multiple structures 290a does not have to be a dot shape. For example, the shape of each of the multiple structures 290a may be a rectangular parallelepiped, a prism, or a pyramid. Even in such a case, an insect attracting system that can further prevent insects P from spreading outside the competition facility 10 is realized.

(Embodiment 2)
Next, the insect attracting system according to the second embodiment will be described with reference to Figs.

Figure 8 is a front view of the illumination light irradiation device 200b according to this embodiment.

Figure 9 is a cross-sectional view showing a cut surface of the second housing 260 taken along line IX-IX in Figure 8.

The insect attracting system according to this embodiment differs from the insect attracting system 1 according to embodiment 1 in that it includes an illumination light irradiation device 200b instead of an illumination light irradiation device 200.

Furthermore, the illumination light irradiation device 200b differs from the illumination light irradiation device 200 according to embodiment 1 in that it has a first region 291b and a second region 292b, rather than a plurality of structures 290.

The first area 291b is formed by a part of the second housing 260. More specifically, the first area 291b is a surface in the first irradiation area B1, and is a part of the front surface 261a of the second housing main body 261. More specifically, in the front view shown in FIG. 8, the front surface 261a in the first irradiation area B1 is the first area 291b.

In this embodiment, the illumination light irradiation device 200b has a plurality of second regions 292b arranged on the front surface 261a so as to extend in a stripe shape. Each of the plurality of second regions 292b has an elongated rectangular shape in the front view shown in FIG. 8. As shown in FIG. 8 and FIG. 9, in the first irradiation region B1, the first region 291b and the plurality of second regions 292b are adjacent to each other.

In addition, each of the second regions 292b is an area in the first irradiation area B1 where the reflectance in the wavelength range in which the relative luminosity of the insect P is equal to or greater than a predetermined value is lower than that of the first region 291b. Specifically, each of the second regions 292b is a light absorbing layer. Here, the predetermined value is preferably 0.3 to 0.9, more preferably 0.4 to 0.8, and even more preferably 0.5 to 0.7.

In other words, the wavelength range in which the relative luminosity of insect P is equal to or greater than a predetermined value is the wavelength range in which the relative luminosity of insect P is high. More specifically, the wavelength range in which the relative luminosity of insect P is equal to or greater than a predetermined value is the wavelength range of near-ultraviolet light contained in the insect-attracting light L1, which is the wavelength range in which the relative luminosity of typical insects P is high.

The second regions 292b, which are light absorbing layers, are layers made of, for example, a resin and an ultraviolet absorbing agent. The resin may be an acrylic resin or a polycarbonate resin. The ultraviolet absorbing agent may be, for example, a benzophenone-based, benzotriazole-based, or benzoate-based material.

In this embodiment, the second regions 292b, which are light absorbing layers, are formed directly on the front surface 261a. However, for example, the second regions 292b may be formed on a resin film, and the resin film may be disposed on the front surface 261a.

With this configuration, the reflectance of the multiple second regions 292b in the above wavelength range is lower than that of the first region 291b. Also, as described above, the second housing body 261 is made of aluminum, which has a high reflectance in the wavelength range of the insect-attracting light L1 (near-ultraviolet light and blue light). Therefore, the first region 291b, which is part of the front surface 261a of the second housing body 261, has a higher reflectance in the above wavelength range than the multiple second regions 292b.

As a result, the reflected light of the insect-attracting light L1 emitted from the first region 291b is strong light, and the reflected light of the insect-attracting light L1 emitted from the second regions 292b is weak light. More specifically, almost no reflected light of the insect-attracting light L1 is emitted from the second regions 292b.

Therefore, a typical insect P appears to have a bright area such as the first region 291b adjacent to a dark area such as multiple second regions 292b. This makes the typical insect P more likely to be attracted by the reflected light of the insect-attracting light L1.

However, humans have difficulty visually recognizing near-ultraviolet light, which is in the above-mentioned wavelength range, due to the low relative visibility of the near-ultraviolet light. Therefore, humans rarely perceive the first region 291b as bright and the multiple second regions 292b as dark. Therefore, humans are unlikely to feel uncomfortable with the illumination light irradiation device 200b.

In summary, in this embodiment, the illumination light irradiation device 200b has a first region 291b and a second region 292b in which the reflectance in the wavelength range in which the relative luminosity of the insect P is equal to or greater than a predetermined value is lower than that of the first region 291b. The wavelength range in which the relative luminosity of the insect P is equal to or greater than a predetermined value is a wavelength range in which the relative luminosity of the insect P is high.

This makes it easier for insects P to be attracted because bright areas such as first area 291b and dark areas such as second area 292b appear to be adjacent to each other. Furthermore, people rarely see first area 291b as bright and second area 292b as dark. In other words, an insect-attracting system is realized that can better prevent insects P from spreading outside the competition facility 10 and that is less likely to cause people to feel uncomfortable.

In addition, in this embodiment, the wavelength range above a predetermined value is the wavelength range of near-ultraviolet light contained in the insect-attracting light L1. This wavelength range above a predetermined value is a wavelength range in which the relative luminosity of common insects P is higher, and is a wavelength range in which the relative luminosity of humans is lower. This makes common insects P more likely to be attracted, and makes it even less likely that humans will feel uncomfortable.

In addition, in this embodiment, each of the multiple second regions 292b is composed of a light absorbing layer that absorbs near-ultraviolet light. Furthermore, the second housing 260 (more specifically, the second housing main body 261) has a metal material that reflects near-ultraviolet light, and the first region 291b is composed of a part of the front surface 261a of the second housing main body 261. This makes it easy to form the multiple second regions 292b and the first region 291b. In other words, it is easy to manufacture an insect attracting system that can better prevent insects P from spreading outside the competition facility 10 and that is less likely to cause people to feel uncomfortable.

(Modification of the second embodiment)
Next, an insect attracting system according to a modified example of the second embodiment will be described with reference to FIG.

Figure 10 is a front view of the illumination light irradiation device 200c according to this modified example.

Figure 11 is a cross-sectional view showing a cut surface of the second housing 260 taken along line XI-XI in Figure 10.

The insect attracting system according to this modification differs from the insect attracting system according to embodiment 2 in that it includes illumination light irradiation device 200c instead of illumination light irradiation device 200b.

Also, the illumination light irradiation device 200c differs from the illumination light irradiation device 200b according to the second embodiment in that it has a first region 291c that is a light reflecting layer that reflects near-ultraviolet light, rather than a first region 291b. Also, here, the illumination light irradiation device 200c has a plurality of first regions 291c.

The first region 291c is composed of a light reflecting layer that reflects near-ultraviolet light. The first region 291c is composed of, for example, a dielectric multilayer film. The dielectric multilayer film contains one or more inorganic compounds selected from SiO ₂ , TiO ₂ , Al ₂ O ₃ , ZnO, Nb ₂ O ₅ , MgF, etc. By controlling the dielectric material and/or the composition of the multilayer film of the dielectric multilayer film that constitutes the first region 291c, the first region 291c can be made into a light reflecting layer that reflects near-ultraviolet light.

By configuring in this manner, each of the second regions 292b has a lower reflectance in the above wavelength range than the first region 291c, as in embodiment 2. In other words, the first region 291c has a higher reflectance in the above wavelength range than the second regions 292b, as in embodiment 2.

As shown in Fig. 10 and Fig. 11, the illumination light irradiation device 200c has a plurality of first regions 291c. The shape of each of the plurality of first regions 291c is an elongated rectangle when viewed from the front as shown in Fig. 10. Furthermore, each of the plurality of first regions 291c is disposed between two second regions 292b. As shown in Fig. 10, the plurality of first regions 291c and the plurality of second regions 292b are disposed alternately in a row and extend along the same direction.

In this modified example, each of the multiple first regions 291c is composed of a light-reflecting layer that reflects near-ultraviolet light. This makes it easy to form the multiple first regions 291c. In other words, it is easy to manufacture an insect-attracting system that can better prevent insects P from spreading outside the competition facility 10 and that is less likely to cause discomfort to people.

Other Embodiments
Although the embodiments and modifications have been described above, the present invention is not limited to the above-described embodiments and modifications.

For example, in each of the above embodiments and modifications, the insect attracting system is realized by multiple devices, but it may be realized as a single device. More specifically, the insect attracting light emitting device and the illumination light emitting device may be an integrated device.

In addition, the present invention also includes forms obtained by applying various modifications to each embodiment and each modified example that would come to mind by a person skilled in the art, or forms realized by arbitrarily combining the components and functions of each embodiment and each modified example within the scope of the spirit of the present invention.

1 Insect attracting system 100 Insect attracting light irradiation device 200, 200a, 200b, 200c Illumination light irradiation device 290, 290a Structure 291b, 291c First area 292b Second area 300 Control device G Ground P Insect B1 First irradiation area B3 Third irradiation area L1 Insect attracting light L2 Illumination light

Claims (11)

An insect-attracting light irradiating device that irradiates insect-attracting light including near-ultraviolet light;
An illumination light irradiation device that is installed outdoors and irradiates illumination light,
the insect-attracting light irradiating device is disposed in a position in which the insect-attracting light is irradiated to the illumination light irradiating device,
the illumination light emitting device has a first illumination area, into which the insect-attracting light is irradiated, on a housing of the illumination light emitting device;
A contrast ratio of the light based on the insect-attracting light in the first illumination region is 100 or less,
the illumination light irradiation device has a structure protruding from the housing in the first irradiation region,
The housing and the structure are integrally molded.
Insect luring system. The housing and the structure are made of the same material.
The insect attracting system according to claim 1 . The same material is aluminum.
The insect attracting system according to claim 2 . A control device for controlling the insect-attracting light irradiation device is further provided.
The insect attracting system according to claim 1 , wherein the control device controls the insect-attracting light irradiating device to irradiate the insect-attracting light after the illumination light irradiating device is turned off. The insect attracting system according to claim 1 , wherein the illumination light application device has a plurality of the structures arranged to extend in a stripe shape. The insect attracting system according to claim 1 , wherein the illumination light irradiation device has a plurality of the dot-shaped structures arranged at a distance from each other. The illumination light irradiation device further includes a stand for supporting the illumination light irradiation device.
The insect attracting system according to any one of claims 1 to 6 , wherein the insect-attracting light emitting device is further disposed in a position in which the insect-attracting light is irradiated onto the stand. The stand has a second irradiation area to which the insect-attracting light is irradiated,
The insect attracting system according to claim 7 , wherein a contrast ratio of the light based on the insect attracting light in the second illumination region is a predetermined value. The insect-attracting light emitting device has a third irradiation area in which insect-attracting reflected light, which is light obtained by reflecting the insect-attracting light, is irradiated on a housing of the insect-attracting light emitting device,
The insect attracting system according to any one of claims 1 to 8 , wherein a contrast ratio of light based on the insect-attracting reflected light in the third illumination region is a predetermined value. The insect-attracting light irradiating device is rotatable about an axis in a predetermined direction,
The insect attracting system according to any one of claims 1 to 9 , wherein the illumination light irradiation device is rotatable about an axis in another predetermined direction. An insect attracting method performed by an insect attracting system, comprising:
The insect attracting system comprises:
An insect-attracting light irradiating device that irradiates insect-attracting light including near-ultraviolet light;
An illumination light irradiation device that is installed outdoors and irradiates illumination light,
the insect-attracting light irradiating device is disposed in a position in which the insect-attracting light is irradiated to the illumination light irradiating device,
The insect attracting method includes:
a control step of controlling the insect-attracting light irradiating device to irradiate the insect-attracting light after the illumination light irradiating device is turned off,
the illumination light emitting device has a first illumination area, into which the insect-attracting light is irradiated, on a housing of the illumination light emitting device;
A contrast ratio of the light based on the insect attracting light in the first illumination region is 100 or less,
the illumination light irradiation device has a structure protruding from the housing in the first irradiation region,
The housing and the structure are integrally molded.
Insect attraction method.

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