JP6861936B2 - Insect trap lamp, insect trap method and insect trap - Google Patents

Description

The present invention relates to an insect trap lamp, an insect trapping method and an insect trap, and more specifically, a factory such as a food factory, a pharmaceutical factory, a container packaging material factory, etc., which needs to prevent the invasion of insects as much as possible. It is related to an insect trap lamp that is suitable for use in an insect trap installed in a factory or a facility, has few physiological and psychological disorders to humans, and is advantageous in terms of cost, and an insect trap and an insect trap method using the lamp. ..

A straight tube type insect trap lamp is mainly used as an insect trap for the above purpose. Fluorescent lamps and LEDs are known as insect attracting lamps that are generally used in the past, and their wavelength band is limited to the ultraviolet region of 300 to 400 nm, that is, the one that emphasizes ultraviolet rays or the ultraviolet region. .. This is based on the finding that this wavelength band strongly contributes to the positive phototaxis of insects and causes a strong attraction of insects in a wide taxon. However, it is technically difficult to produce light in the ultraviolet wavelength band at low cost, and it is difficult to realize a light source having the light intensity required for insect catching applications at low cost.

In addition, existing insect attracting lamps emit a lot of light from the ultraviolet to blue regions, so some people may be affected by ultraviolet rays in terms of physiology or psychology, or their existence may be recognized by people. There was a problem that psychological disorders were caused by being aware that insects were gathering nearby.

Japanese Unexamined Patent Publication No. 2008-154500 Japanese Unexamined Patent Publication No. 2008-154499 Japanese Unexamined Patent Publication No. 2006-087371

As described above, in the case of an insect trap lamp used in a conventional insect trap, it is technically difficult to produce light in the ultraviolet wavelength band at low cost, and it has the light intensity required for insect trap applications. There is a problem that it is difficult to realize a light source at low cost. In addition, because of the high light intensity of ultraviolet rays, humans may be affected physiologically. Furthermore, since it emits light from the ultraviolet to the blue, it is easily recognized by humans, and the existence of insect traps is easily recognized, so there is a consciousness that it is exposed to ultraviolet rays or that insects are gathering nearby. There was a problem that it occurred and caused psychological disorders.

The present invention has been made to solve these problems, and while maintaining the conventional insect trapping effect, the physiological and psychological effects of ultraviolet rays and the physiological and psychological effects of ultraviolet rays without increasing the light intensity and at no cost. It is an object of the present invention to provide an insect trap lamp, an insect trap, and an insect trap method that are not likely to cause psychological disorders due to the awareness of the presence of insects.

The invention according to claim 1 for solving the above problems is an insect attracting lamp that uniformly emits both ultraviolet light having a peak wavelength in the range of 320 to 400 nm and green light having a peak wavelength in the range of 500 to 600 nm. In the visible range of insects, 300 to 700 nm, the content of green light, which is the ratio of the total number of green light to the total number of total number of ultraviolet light and the total number of green light, is 55 to 55. It is an insect attracting lamp characterized by having a range of 20%. According to the present invention, by having a light source of ultraviolet light and a light source of green light, it is possible to reduce expensive ultraviolet LED chips and reduce costs.

In one embodiment, the green light content is in the range of 50-20%. According to this embodiment, since the content of green light is 62.6% or less, the attraction rate is at least 50% or more, and the cost is lower than that of the conventional insect attracting lamp using only ultraviolet light. Insect-attracting lamps can be provided, and when the content of green light is in the range of 55 to 20%, insects can be effectively attracted toward the lamp, and further in the range of 50 to 20%. In the case of, the insects can be attracted toward the lamp more effectively.

The insect attracting lamp in one embodiment is characterized in that an LED module in which at least one ultraviolet LED chip and at least one green LED chip are arranged at predetermined intervals is arranged in a casing. In that case, the LED module may have a plurality of ultraviolet LED chips and a plurality of green LED chips arranged in a casing at appropriate intervals on a linear axis. According to this embodiment, a commercially available ultraviolet LED chip and a green LED chip can be obtained to easily provide an insect attracting lamp, and a plurality of ultraviolet LED chips and a plurality of green LED chips are appropriately spaced apart from each other. By incorporating the LED module arranged in the above, it is possible to provide an insect attracting lamp having uniform light emission.

Further, in one embodiment, the plurality of the ultraviolet LED chips in the LED module are arranged on the linear axis at predetermined same intervals, and the plurality of green LED chips are arranged on the linear axis at predetermined same intervals. Arranged, at least one of the plurality of ultraviolet LED chips and the plurality of green LED chips is arranged between LED chips of other colors. According to this embodiment, it is possible to realize a linear light source in which the light from the LED of each wavelength is made uniform for each wavelength. Further, since the uniform light sources having those wavelengths are overlapped with each other, it is possible to provide a uniform linear light source in which colors are mixed.

In one embodiment, the LED module has 6 ultraviolet LED chips and 15 green LED chips arranged, or 4 ultraviolet LED chips and 9 green LED chips arranged. Will be done. According to this embodiment, as the LED module, 6 ultraviolet LED chips and 15 green LED chips are arranged, or 4 ultraviolet LED chips and 9 green LED chips are arranged. , It becomes possible to provide an insect attracting lamp having a green light content of about 50%.

In one embodiment, a plurality of LED modules according to any one of claims 4 to 6 are arranged in parallel in the direction perpendicular to the linear axis so that the linear axes of the LED modules are at the same interval. Will be done. According to this embodiment, a plurality of the linear LED modules are arranged in parallel in the direction perpendicular to the linear axis so that the linear axes of the LED modules are at the same interval, thereby forming a two-dimensional shape. It is possible to provide an insect attracting lamp that emits light uniformly.

In one embodiment, the maximum value of the adjacent distances in the relationship between the ultraviolet LED chip and the green LED chip is within 5.2 cm. According to this embodiment, by setting the maximum value of the adjacent distances within 5.2 cm in the relationship between the ultraviolet LED chip and the green LED chip, it is possible to prevent insects from discriminating the LED chips of each color, so that the light spreads. It is possible to provide an insect attracting lamp that can mix colors without using a plate and can be effectively used without causing light absorption loss or reflection loss in the diffuser plate.

The invention according to claim 9 for solving the above problems is an insect trap equipped with the insect trap lamp according to any one of claims 1 to 8. According to the present invention, by mounting the insect attracting lamp, it is possible to provide an insect trap having an excellent insect attracting effect.

The invention according to claim 10 for solving the above problems is a method for catching insects by using an insect attracting lamp according to any one of claims 1 to 8 and using an adhesive sheet to catch insects. Is. According to the present invention, by using the above-mentioned insect attracting lamp and catching insects with an adhesive sheet, it is possible to provide an insect catching method having an excellent insect attracting effect.

The present invention is as described above, and according to the insect attracting lamp, the insect catcher, and the insect catching method according to the present invention, the cost is reduced by reducing expensive ultraviolet LED chips while ensuring the insect catching effect without increasing the light intensity. It has the effect of reducing the physiological effects and the psychological effects of having those light sources, and as the green light increases, the blue light visible to the human is covered. By being hidden, it has the effect of removing the psychological obstacles of having an insect trap.

It is the schematic which shows the structural example of the insect attracting lamp which concerns on this invention. It is the schematic of the arrangement of the LED chip of the insect attracting lamp which concerns on this invention. It is the schematic of the LED chip module in which a two-dimensional LED chip is arranged. It is the schematic which shows the experimental method performed for confirming the effectiveness of the insect attracting lamp which concerns on this invention. It is a graph which shows the experimental result (the relationship between the difference of wavelength and light intensity and the attraction rate) performed for confirming the effectiveness of the insect attracting lamp which concerns on this invention. It is a graph which shows the experimental result (relationship between the combination of wavelength and the attraction rate) performed for confirming the effectiveness of the insect attracting lamp which concerns on this invention. It is a graph which shows the experimental result (relationship between the ratio of ultraviolet light and the attraction rate) performed for confirming the effectiveness of the insect attracting lamp which concerns on this invention. It is a figure which showed the relationship between the ratio of green light in an experimental light source, and the attraction rate. It is a figure which shows one configuration example of the insect trap equipped with the insect attracting lamp which concerns on this invention.

A mode for carrying out the present invention will be described with reference to the accompanying drawings. FIG. 9 shows a configuration example of an insect trap equipped with an insect attracting lamp according to the present invention. The insect trap is composed of a case 21 having an opening large enough for insects to enter and having an inner surface for fixing the insect trap sheet 22 inside, and an insect trap lamp 23 provided in the case 21. The insect attracting lamp 23 has a function of emitting ultraviolet light and green light, as will be described later. The insect catching sheet 22 is a sticky insect catching means.

When the insect to be captured approaches the insect trap according to the present invention, it is attracted by the insect trapping function of the insect trap lamp 23 to approach the insect trap lamp 23 and stick to the insect trap sheet 22 to be captured.

The insect attracting lamp 23 according to the present invention is an insect attracting lamp that emits both ultraviolet and green light. In other words, it is an insect attracting lamp characterized by mixing both ultraviolet and green colors to develop colors. In that case, a configuration in which one light source emits ultraviolet light and another light source emits green light can be adopted, and a configuration in which one light source emits ultraviolet light and green light can also be adopted.

This insect attracting lamp is configured by, for example, having at least one ultraviolet LED chip and at least one green LED chip arranged at appropriate intervals in a straight tube type casing 1. Further, it can also be configured by incorporating an LED module 4 in which a plurality of ultraviolet LED chips 2 and a plurality of green LED chips 3 are appropriately spaced apart in a straight tube type casing 1 (see FIG. 1). In that case, the plurality of ultraviolet LED chips 2 are arranged on the linear axis at predetermined same intervals, and the plurality of green LED chips 3 are arranged on the linear axis at predetermined same intervals, and the plurality of ultraviolet LED chips 2 and the plurality of ultraviolet LED chips 2 are arranged on the linear axis. At least one of the plurality of green LED chips 3 is arranged between LED chips of other colors.

Specifically, the LED module 4 has, for example, 6 ultraviolet chips 2 and 15 green LED chips 3 (FIG. 2 (A)), or 4 ultraviolet LED chips 2 and 9 green LED chips 3. The pieces (FIG. 2B) are regularly arranged so as to cover the entire casing 1. With such a configuration, uniform light emission becomes possible. The number of ultraviolet LED chips 2 and the number of green LED chips 3 are determined by controlling the light intensity of commercially available products of the ultraviolet LED chips 2 and the green LED chip 3, and then "total number of ultraviolet light and total number of green light". When "the ratio of the total number of green light to the total number of photons" is defined as the content rate of green light, the number is set so that the content rate of green light can be approximately 50%.

The LED chips may be arranged two-dimensionally so as to emit uniform light. In FIG. 3, a plurality of LED modules 4 having LED chips arranged on a linear axis as described above are arranged in parallel in a direction perpendicular to the linear axis so that the linear axes of the insect attracting lamps are at the same interval. It is an insect attracting lamp that is made up of. By arranging linear insect attracting lamps that emit uniform light in parallel in this way, it is possible to use a two-dimensional light source while ensuring the uniformity of light, and the insect attracting lamp that concentrates the light in a limited area. Can be realized.

If a diffuser is not used for the casing, it is assumed that when an insect sees the insect attracting lamp, the LED chips of each color are discriminated and the insect attracting effect due to the color mixing does not occur. Therefore, it is desirable to set the LED chips of each color at intervals that insects cannot discriminate.

Considering this point, it is known that the receptive angle and the inter-eye angle, which define the spatial resolution of the pests targeted by the trap, are at least 1 degree (Land 1997; Land & Nisson 2002). ). Among the studies measuring the distance that insects are attracted to light, the shortest result is about 3 meters (Baker and Sadovy 1978). Calculations based on these research results suggest that even the eyes of insects, which have the highest spatial resolution, cannot discriminate between two point light sources that are 5.2 cm apart, 3 m away. Therefore, it can be said that it is necessary to arrange the distance between the ultraviolet and green LED chips, which are different colors, within 5.2 cm in order to mix the colors without using the diffuser.

On the other hand, if a diffusing plate is placed in the casing to impart a diffusing function, the light intensity of the ultraviolet light that can be used is slightly reduced due to the absorption loss and reflection loss of the diffusing plate, which affects the insect attracting effect. It can reduce the glare effect on the human eye and reduce the physiological and psychological effects on the human eye. Therefore, the presence or absence of the diffusion plate may be determined by comparing the removal of the influence on humans and the degree of the insect attracting effect.

A lighting circuit 5 and a noise filter 6 are provided in the casing 1, and both ends are sealed with caps 7.

By the way, in a preferred embodiment, ultraviolet light has a peak wavelength in the range of 320 to 400 nm, and green light has a peak wavelength in the range of 500 to 600 nm. In order to derive the configuration of such an insect attracting lamp, the present inventors conducted the following experiments.

The experiment found the optimum wavelength band for color mixing and its content ratio, which can reduce the content of ultraviolet light without reducing the attraction reaction by the positive phototaxis of insects, that is, the attraction effect. The purpose is to clarify. In that experiment, it was assumed that a monochromatic LED light source that emits light in the wavelength band of 375 nm outside the ultraviolet light was emitted at ^{a light intensity of 1.0 × l0 13} feet / cm ² / sec as a model of an existing insect attracting lamp. We confirmed the effect of attracting various color-mixed light sources to the light source.

<Two-lamp selection experiment using LED panel light source>
In this experiment, an LED panel light source serving as a control light source 11 and an LED panel light source serving as an experimental light source 12 were prepared, and these were arranged in a dark room at an angle of 60 degrees between the panels, and an insect flying platform was placed between them. This was done by placing 13 and letting insects fly from it (see FIG. 4). The insects that were flown in this experiment are agricultural pests, and the German cockroach, which occasionally outbreaks and is attracted to convenience stores and the like, becomes a problem.

More specifically, as an LED panel light source, a 30 × 30 cm square window was provided in the center of a 60 × 60 cm black plate material, and LED light was emitted from the window. The control light source 11 as a model of the existing insect attracting lamp always emitted light in the wavelength band of 375 nm outside the ultraviolet light at a light intensity of 1.0 × l0 ¹³ photos / cm ² / sec. On the other hand, the experimental light source 12 arranged next to the experimental light source 12 was made to emit light at various wavelengths and light intensities. Then, under all the conditions, 40 German cockroaches are flown from the intermediate portion between the control light source 11 and the experimental light source 12, and are attracted to either the control light source 11 or the experimental light source 12 at what ratio. I checked.

<Experiment 1: Reaction to light intensity>
In the selection of the control light source 11 having an ultraviolet 375 nm and the experimental light source 12 having a green 525 nm, the control light source 11 having a single ultraviolet color was strongly selected even ^{when the light intensity was halved (0.5 × 10 13) (FIG. 5 (C),} (D)). When the control light source 11 and the ultraviolet 375 nm monochromatic light source were selected at the same light intensity, the attraction rates were random, and each was about 50% (see FIG. 5 (A)). When the light intensity of the ultraviolet 375 nm monochromatic light source is halved (0.5 × 10 ¹³ ), the attraction rate does not change significantly compared to the 1/1 condition (see FIG. 5 (B)), which is significant. There was no difference.

<Experiment 2: Reaction to wavelength>
A monochromatic control light source 11 having an ultraviolet 375 nm and a mixed color experimental light source 12 in which ultraviolet 375 nm and other wavelengths were mixed were selected. At that time, the light intensity of the mixed color experimental light source 12 was set to 1.0 × l0 ¹³ photos / cm ² / sec, which was the same as that of the control light source 11, by combining the two wavelengths. In the case of the experimental light source 12 in which ultraviolet and blue 450 nm were mixed at 50:50, the control light source 11 having a single ultraviolet color was strongly selected (80% attraction rate) (see FIG. 6 (A)). In the case of the experimental light source 12 in which ultraviolet and white 460 + 570 nm were mixed at 50:50, the control light source 11 having a single ultraviolet color was selected (see FIG. 6C).

In the case of the experimental light source 12 in which ultraviolet and green 525 nm were mixed at 50:50, the experimental light source 12 in which the colors were mixed was selected (see FIG. 6 (B)). Therefore, it has been found that the inclusion of blue light having a peak wavelength of 450 to 460 nm is considered to have a negative effect on attraction and is not preferable. On the other hand, the inclusion of green light with a peak wavelength of 525 nm has ^{a significant difference compared to 0.5 × 10 13} photons / cm ² / sec of ultraviolet monochromatic light, and therefore is a positive attraction due to color mixing. It turned out to be effective.

<Experiment 3: Reaction to the ratio of green light>
In order to see the reaction to the ratio of ultraviolet light to green light, a monochromatic control light source 11 having an ultraviolet light of 375 nm and an experimental light source 12 having a mixed color of ultraviolet light and green 525 nm were selected. The ratio of ultraviolet rays to green of the experimental light source 12 was divided into 5 stages from 100: 0 to 0: 100, and the difference in the attraction rate of each was clarified. In the case of the experimental light source 12 in which the ratio of ultraviolet to green is 100: 0, that is, the experimental light source 12 is composed entirely of ultraviolet light, 47.1% is attracted to the control light source 11, 52.9% is attracted to the experimental light source 12, and the turtle beetle is attracted. Two light sources were randomly selected (see FIG. 7 (A)). There is no significant difference when the ratio of ultraviolet to green is 100: 0 (Fig. 7 (A)), 80:20 (Fig. 7 (B)), and 50:50 (Fig. 7 (C)), and it is remarkable due to the change in the content rate. No change in the reaction was observed. On the other hand, when the ratio of ultraviolet rays to green was set to 20:80 and the color mixture had a high ratio of green, 74.3% was attracted to the control light source 11 (FIG. 7 (D)). Therefore, the ideal proportion of green that does not reduce attractiveness was considered to be somewhere between 50-80%.

<Conclusions drawn from experimental results>
^{When 1.0 x l0 13} photos / cm ² / sec of a monochromatic light source with an ultraviolet 375 nm is regarded as a model of an existing insect attracting lamp, the attraction to insects is reduced by mixing light in another wavelength band. There is a possibility that the content of ultraviolet light can be reduced. As a result, it is possible to reduce the cost of expensive ultraviolet LED chips and at the same time, by concealing the existence of light in the ultraviolet and blue wavelength bands, it is due to the existence of those light sources. It has the effect of removing the psychological disorder that causes the physiological disorder.

In addition, the psychological obstacle of the presence of an insect trap (that is, an insect) can be removed by obscuring the blue light visible to the human eye with the increase of light in another wavelength band. The light in another wavelength band is green light centered on 525 nm, and the range is ideally assumed to be 500 to 600 nm. Further, the suitable content ratio is ideally assumed to be 50 to 20% from the result of FIG. 7.

Further analysis reveals that a graph as shown in FIG. 8 can be created by using the data from (A) to (E) in FIG. 7. FIG. 8 is a diagram showing the relationship between the ratio of green light in the experimental light source and the attraction rate. Here, where the data are the five points (A) to (E) in FIG. 7, a polynomial approximation is adopted to obtain an approximation curve including the five points. The approximate curve is as follows.
y = 490x4-986.67x3 + 485.9x2-42.133x + 52.9
Here, x is the ratio of green light in the experimental light source, and y is the attraction rate.

Further, as data, a numerical value having an insect attracting effect of 56.8% is obtained when the ratio of green light in the experimental light source is 0.2. When the ratio of green light in the experimental light source becomes larger than 0.2, the attraction rate peaks and then decreases. When the ratio of green light is increased, when the ratio of green light is 0.2, the attraction rate is 56.8%, which is the same effect as the effect. From this polynomial, for example, in an experimental light source. It can be seen that when the ratio of green light is 0.55, an attraction rate of 57.3% is obtained. Therefore, it can be said that the optimum content ratio is 55 to 20%.

By the way, in general, an LED that emits green light can be obtained at a lower cost than an LED that emits ultraviolet light. Therefore, it can be said that the higher the content rate of green light, the lower the cost as an insect attracting lamp. If this cost aspect is emphasized, even if the insect attracting lamp has the same attraction rate as the conventional insect attracting lamp using only ultraviolet light, the insect attracting lamp mixed with green light is advantageous because the cost can be reduced. I can say.

From this point of view, when the content ratio of green light at which the attraction rate is approximately 50% is calculated from the above formula, the attraction rate may be 50.1% when the content ratio of green light is 62.6. found. As a result, when the content ratio of green light is 62.6% or less, it is possible to realize an insect attracting lamp at a lower cost than the conventional insect attracting lamp using only ultraviolet light while ensuring an attraction rate of at least 50% or more. It can be said that it is possible.

As described above, according to the present invention, by using a lamp that emits both ultraviolet light and green light, it is possible to enhance the insect attraction as compared with using a lamp that emits ultraviolet light and the accompanying blue light. In addition, it has the effect of reducing physiological and psychological disorders, and also has the effect of concealing the presence of ultraviolet light and blue light and removing the psychological disorder of having an insect trap. Lamps can be provided and their industrial availability is great.

1 Straight tube casing 2 Ultraviolet LED chip 3 Green LED chip 4 LED module 5 Lighting circuit 6 Noise filter 7 Cap 11 Control light source 12 Experimental light source 13 Flying platform 21 Case 22 Insect catching sheet 23 Insect attracting lamp

Claims (10)

An insect attracting lamp that uniformly emits both ultraviolet light having a peak wavelength in the range of 320 to 400 nm and green light having a peak wavelength in the range of 500 to 600 nm.
In the visible range of insects, 300 to 700 nm, the green light content, which is the ratio of the total number of green light photons to the total number of total ultraviolet light photons and the total number of green light photons, is in the range of 55 to 20%. An insect attracting lamp characterized by being. In the visible range of insects, 300 to 700 nm, the green light content, which is the ratio of the total number of green light photons to the total number of total ultraviolet light photons and the total number of green light photons, is in the range of 50 to 20%. The insect attracting lamp according to claim 1, wherein the insect attracting lamp is characterized by the above. The insect attracting lamp according to claim 1 or 2 , wherein an LED module in which at least one ultraviolet LED chip and at least one green LED chip are arranged at predetermined intervals is arranged in a casing. The insect attractant according to claim 1 or 2 , wherein an LED module in which a plurality of ultraviolet LED chips and a plurality of green LED chips are arranged at appropriate intervals on a linear axis is arranged in a casing. lamp. The plurality of ultraviolet LED chips in the LED module are arranged on the linear axis at predetermined same intervals, and the plurality of green LED chips are arranged on the linear axis at predetermined same intervals. The insect attracting lamp according to claim 4 , wherein at least one of the ultraviolet LED chip and the plurality of green LED chips is arranged between LED chips of other colors. The LED module is characterized in that six ultraviolet LED chips and 15 green LED chips are arranged, or four ultraviolet LED chips and nine green LED chips are arranged. , The insect attracting lamp according to claim 4 or 5. A plurality of LED modules according to any one of claims 4 to 6 are arranged in parallel in the direction perpendicular to the linear axis so that the linear axes of the LED modules are at the same interval. Insect attracting lamp. The insect attracting lamp according to any one of claims 4 to 7 , wherein the maximum value of the adjacent distance between the ultraviolet LED chip and the green LED chip is within 5.2 cm. An insect trap equipped with the insect trap lamp according to any one of claims 1 to 8. A method for catching insects, which comprises using the insect attracting lamp according to any one of claims 1 to 8 and catching insects with an adhesive sheet.

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