WO2017159453A1

WO2017159453A1 - Insect-attracting device

Info

Publication number: WO2017159453A1
Application number: PCT/JP2017/008983
Authority: WO
Inventors: 摩耶荒金
Original assignee: アルゴ株式会社
Priority date: 2016-03-15
Filing date: 2017-03-07
Publication date: 2017-09-21

Abstract

In the past, although insect-attracting devices existed for attracting insects with UV or visible light and capturing and killing the insects, the devices did not have a strong attracting effect. Also, devices having a strong insect-attracting effect were large. Therefore, the present invention provides a device having a stronger attracting effect for attracting the attention of insects than normal insect-attracting devices. A device having at least one short-wavelength LED for radiating an electromagnetic wave having a wavelength of 400 nm or less, and at least one long-wavelength LED for radiating an electromagnetic wave having a wavelength of 400 nm or more, at least the short-wavelength LED being caused to blink.

Description

Insect device

The present invention relates to an insect attracting apparatus.

The insect attracting device is used for an insect trap (including insecticide), etc., and attracts insects by radiating electromagnetic waves preferred by insects (mainly flying insects). As for the visual sense of insects, electromagnetic waves in the wavelength range of 240 nm to 560 nm are generally sensed, but there are those that can sense longer wavelengths. Of these, 240 nm to 400 nm is an ultraviolet region, which is invisible to humans.

Therefore, insects tend to be directed toward objects that can be recognized by objects that radiate (including reflection) the above-described detectable electromagnetic waves, or vaguely. In particular, it is easy to imagine going further toward the light (electromagnetic wave) where the same kind gathers for mating. Considering this, even electromagnetic waves have more preferred wavelengths. In other words, there is a highly sensitive electromagnetic wave region, and the preferred wavelength differs depending on the type of insect.

Also, animals are generally easier to recognize when they are moving than when they are stationary. Therefore, it is desirable to move the insect lamp in order to increase the insect attracting effect. However, in order to move, a motor or other operating device is required, which not only increases costs but also causes failure.

Therefore, it has been considered that the insect attracting device (lamp) blinks recently. This is because blinking is said to improve the insect attracting effect as well as the movement (Patent Document 1).

In addition, many insects prefer (sense) ultraviolet rays of about 370 nm. However, as described above, they do not sense only ultraviolet rays but also the visible light range. Therefore, what radiates | emits both visible light and an ultraviolet-ray is also considered like patent document 2. FIG.
However, these prior arts still have a deficient aspect as an insecticidal effect.

JP 2004-275070 A JP 2009-268438 A

Therefore, the present invention provides a simple device that efficiently attracts insects using a mixed electromagnetic wave of ultraviolet and visible light.

In view of the above situation, the present inventor has completed the present insect attracting device as a result of earnest research, and the feature thereof is that at least one short wavelength LED emitting an electromagnetic wave having a wavelength of 400 nm or less, It has at least one long wavelength LED that radiates an electromagnetic wave having a wavelength of 400 nm or more, and has a switching device for blinking the short wavelength LED.

In the present invention, the attracting device is a device that gathers insects by radiating electromagnetic waves having a wavelength preferred by the insects. The purpose of collecting is free. Others to keep away from places you don't want to go to catch insects.

LED is a kind of diode and is a semiconductor element that emits electromagnetic waves when a voltage is applied in the forward direction.

The short wavelength LED referred to here emits an electromagnetic wave having a wavelength of 400 nm or less. An electromagnetic wave having a wavelength of 400 nm or less is generally an electromagnetic wave called ultraviolet light, and is an electromagnetic wave having a wavelength of 200 nm to 400 nm in principle in the present invention. Among these, particularly around 365 nm is important, and there are many insects that prefer electromagnetic waves in the vicinity. There are many insects that sense electromagnetic waves in the vicinity, and many insects that are attracted by visual stimuli when flashing electromagnetic waves in this wavelength band.
In the insect attracting apparatus of the present invention, at least one LED that emits an electromagnetic wave having a wavelength of 400 nm or less is sufficient, but in practice, a large number of LEDs are usually used. For example, the number is 20 to 100. Moreover, you may use multiple types which are not the same thing and irradiate the ultraviolet-ray of a different wavelength. For example, a large number of both 230 nm LEDs and 365 nm LEDs are used.

The advantage of using different types is that different wavelengths are preferred depending on the insects, so that more types of insects can be attracted and those that are originally mixed with various wavelengths are more likely to gather. In the same manner as humans, white mixed with various colors is preferable to monochromatic light.

If it is a normal light source, it emits electromagnetic waves (light) in a wide range of wavelengths as mixed light, but in the case of LEDs, it emits electromagnetic waves in a very narrow range of wavelengths. Thus, the LED determines which wavelength of electromagnetic wave the LED emits. Although the emission wavelength width is not constant, it is said that the high peak part is about 20 nm to 50 nm, and the low part is 50 to 150 nm. In the present invention, the term wavelength refers to the center wavelength at this time.

As used herein, a long wavelength LED emits an electromagnetic wave having a wavelength of 400 nm or more. An electromagnetic wave having a wavelength of 400 nm to 750 nm is an electromagnetic wave that is visible light and can be sensed by humans. Further, it is said that electromagnetic waves of 750 nm or more are infrared rays and cannot be detected by humans, but some insects can detect them.

As in the case of the long wavelength LED, a plurality of types may be used. For example, blue, green, red, etc. Since the preferred color varies depending on the insect, the insecticidal effect is greater when a plurality of insects are used.

The switching device is for blinking the LED, and the device itself may be anything such as a simple switching circuit. If the power supply is alternating current, there are some that convert it to direct current and turn it on and off. Further, an inverter may be used to adjust the frequency (number of times).
In short, any LED flashing function is sufficient, and the flashing method, circuit, mechanism, etc. are free.

The point of the present invention is that at least the short wavelength LED blinks automatically by this switching device. Blinking is a periodic repetition of turning on and off. The frequency of blinking (how many times it blinks per second. Here, it is the number of times it is turned on per second) is not limited, but it is better. The smaller the number, the easier it is to catch the insect's attention. For example, it is 0.1 to 120 times per second, preferably 0.2 to 50 times, more preferably about 0.2 to 20 times.

Also, the lighting time and the lighting time may be the same or different. For example, in the case of blinking 20 times in 10 seconds, if the lighting time is 0.1 second per time, the total is 2 seconds, and the light is on for 2 seconds in 10 seconds. The time ratio between lighting and extinguishing is not particularly limited, but it is preferable that lighting time / extinguishing time = 1/1 to 1/20 considering the electricity cost and effects.

The long wavelength LED may or may not blink, but it is preferred that this also blink. This is because long-wave electromagnetic waves (in principle, visible light) blinking also has a greater insect attracting effect.
In this case, the blinking frequency of the long wavelength LED and the short wavelength LED may be arbitrary, but different ones are preferable. This is because the attracting effect is greater in different cases than in flashing simultaneously. It is natural that the flashing at different timings stand out.

The electromagnetic waves of long-wavelength LEDs are generally visible light, and visible light can be perceived by humans. Therefore, a frequency higher than the level that humans cannot detect is preferable. Actually, the frequency that humans can detect (the frequency at which it is perceived as unpleasant) is not clear, but is considered to be 30 to 50 times / second.
Therefore, it is better to set the frequency higher than that. Of course, when it is not uncomfortable or when it is used in a place where it is not touched by human eyes, there is no problem even if it is less than those numerical values if there is no other problem.
It is said that insects can recognize blinking of visible light even at about 50 times / second.

The switching device for blinking the long wavelength LED may be provided separately or one for the short wavelength LED may be used. That is, any number of switching devices may be used.

It is also preferable that the blinking frequency of the short wavelength LED and that of the long wavelength LED are different. This is to draw more attention if it blinks at different times. Furthermore, as described above, due to the problem of human perception, the blinking frequency of the short wavelength LED is made larger than the blinking frequency of the long wavelength LED, making visible light difficult for humans to detect, and ultraviolet light reducing the blinking frequency. It is better to catch the insect's attention.

After all, it is preferable that ultraviolet rays that can be detected only by insects flash slowly, and visible light that humans can detect and make the flashing uncomfortable flashes quickly (to the extent that humans cannot detect it).

Furthermore, in the case of using a plurality of short wavelength LEDs (different wavelengths), the blinking frequency may be changed. For example, 240 nm is 2 times / second, 320 nm is 10 times / second, 365 nm is 20 times / second, and the like. Each of them is lit up at a different timing, so it is considered to be very conspicuous.
This also applies to long wavelength LEDs, and the blinking frequency may be changed according to various wavelengths.

In the insect attracting apparatus of the present invention, the arrangement and number ratio of the short wavelength LED and the long wavelength LED are arbitrary. They may be arranged at random or in a certain rule. Further, the ratio of the number of short wavelength LEDs to long wavelength LEDs varies depending on the insect. In addition, since the output of the short wavelength LED may be weak (and vice versa), the number may be adjusted by taking them into account. For example, the ratio of the short wavelength LED to the long wavelength LED is 10: 1 to 1:10.
Moreover, you may provide LED and other lamps which do not blink. The wavelength is also free.

Furthermore, in this invention, you may make the rated current value of short wavelength LED larger than the rated current value of long wavelength LED. This is because, in the current technology, the LED for ultraviolet rays has a weak output and is often less than one fifth of that of visible light. This is because an electromagnetic wave having a short wavelength is generally high in energy, and in the case of the same rated current value, the short-wavelength LED has a smaller apparent brightness (not detectable by humans but viewed from insects). .
Therefore, in order to reduce as much as possible the irradiation level of ultraviolet light and visible light (the intensity of the irradiated electromagnetic wave. The unit is mW / cm ² ), a difference is provided in the rated current value.

The difference between the rated current values of the two differs depending on the wavelength, but the wavelength of 200 to 300 nm is 5 to 20 times that of 400 to 700 nm, and the wavelength of 300 to 400 nm is 400 to 700 nm. About 5 to 10 times is preferable. When the rated current is 5 times, in principle, the value of the flowing current increases (up to about 5 times), and the irradiation intensity of ultraviolet rays increases accordingly.

For example, if the rated current value of a long wavelength LED is 30 mA, that of a short wavelength LED is 150 mA to 600 mA, that is, an LED having such a rated current value is used.

The insect attracting apparatus of the present invention can be used in place of an ordinary insect trapping machine and other illuminants such as an attracting lamp, an ultraviolet lamp and the like. Of course, there is no problem even if it is used other than the insect trap.

The insect attracting apparatus of the present invention has the following great advantages.
(1) Since electromagnetic waves (ultraviolet rays) of 400 nm or less are blinking, insects are easy to detect and are very worrisome. Therefore, the insect attracting effect is great.
(2) There is no unpleasant feeling even if the ultraviolet ray blinks because it is unknown to the person.
(3) The long-wave electromagnetic wave (mainly visible light) is also irradiated at the same time, so the insect attracting effect is great.
(4) If the long wavelength electromagnetic wave is blinking, the insect attracting effect is further increased.

It is a top view which shows an example of this invention insect attracting apparatus. It is a top view which shows the other example of this invention insect attracting apparatus. It is a top view which shows the other example of this invention insect attracting apparatus.

Hereinafter, based on an Example, this invention is demonstrated in detail. The following embodiment is an example, and the present invention is not limited to this.
FIG. 1 is a schematic plan view in which three types of LEDs are alternately arranged on the base (2) of the insect attracting apparatus (1) of the present invention. In this example, the LEDs are arranged in a plane on one surface of the substrate (2). In this example, the wavelength of the radiated electromagnetic wave of LED-A (3) is 265 nm, the wavelength of the radiated electromagnetic wave of LED-B (4) is 365 nm, and the wavelength of LED-C (5) is 435 nm (peak is 435 nm). Was used).
In this example, there are two columns, but there is no problem with three or more columns.

The LED frequencies in this example are 2 times / second for LED-A (3), 10 times / second for LED-B (4), and 50 times / second for LED-C (5). Ultraviolet light blinks slowly, making it easier to recognize insects, and visible light to prevent humans from seeing blinks.

This was tested for the effect of attracting various flying insects, but a considerable effect was observed.

FIG. 2 is a schematic plan view showing another example of the insect attracting apparatus of the present invention. A power source (6), an AC power source rectifier (7), a switching device (8), a short wavelength LED (9), and a long wavelength LED (10) are included. In this device, the AC power supply rectifier (7) is composed of a transformer and a rectifier, and can convert a voltage (adjustable) and convert the AC to DC. The switching device (8) turns on / off the irradiation of electromagnetic waves, and its frequency can be adjusted.
In this example, the short wavelength LED (9) emits an electromagnetic wave having a wavelength of 365 nm, and the blinking frequency is 5 times / second. The long wavelength LED (10) is a plurality of types and emits blue and green light, and the blinking frequency is 50 times / second.

The rated current value of the short wavelength LED is 300 mA, and that of the long wavelength LED is 30 mA. A short wavelength LED is ten times longer than a long wavelength LED. Therefore, at the same current value, even if the irradiation level (mW / cm ² ) of the short-wavelength LED is low, the current value is 10 times that of the short-wavelength LED, which is a considerable level. For this reason, short wavelength electromagnetic waves (ultraviolet rays) are strongly detected by insects.

FIG. 3 is a schematic plan view showing still another example of the present invention. In this example, ultraviolet irradiation LED (wavelength 265 nm) (11) and visible light irradiation LED (green) (12) are alternately provided.

1 Insect device 2 Base 3 LED-A
4 LED-B
5 LED-C
6 Power supply 7 AC power supply rectifier 8 Switching device 9 Short wavelength LED
10 Long wavelength LED
11 UV irradiation LED
12 Visible light irradiation LED

Claims

Having at least one short wavelength LED that emits an electromagnetic wave having a wavelength of 400 nm or less, at least one long wavelength LED that emits an electromagnetic wave having a wavelength of 400 nm or more, and a switching device for blinking the short wavelength LED. Insect device featuring.
2. The insect attracting device according to claim 1, wherein the long wavelength LED also blinks.
The insect attracting apparatus according to claim 2, wherein the blinking frequency of the long wavelength LED and the blinking frequency of the short wavelength LED are different.
4. The insect attracting device according to claim 3, wherein the blinking frequency of the long wavelength LED is higher than the blinking frequency of the short wavelength LED.
The insect attracting apparatus according to claim 4, wherein the blinking frequency of the long wavelength LED is 50 times or more per second, and the blinking frequency of the short wavelength LED is 0.2 to 50 times per second.
The insect attracting apparatus according to any one of claims 1 to 5, wherein the long wavelength LED uses a plurality of LEDs having different wavelengths.
The insect attracting apparatus according to any one of claims 1 to 6, wherein a plurality of different types of short wavelength LEDs are used.
The insect attracting device according to any one of claims 1 to 7, wherein at least one rated current value of the short wavelength LED is larger than a rated current value of all the long wavelength LEDs.