JP4640333B2 - Insect trap - Google Patents

Description

  The present invention relates to an insect trap that irradiates ultraviolet rays that attract insects and captures the attracted insects.

  2. Description of the Related Art Conventionally, an insect trap includes a light source that emits light that attracts insects, that is, an insect lamp. This attractant lamp is particularly targeted for flying insects. FIG. 10 shows the light characteristics of insects. Insects are attracted to light having a wavelength of approximately 360 to 370 nm, that is, ultraviolet rays. For this reason, the insect attracting lamp is configured to emit light containing ultraviolet rays. FIG. 11 shows the frequency components of the emitted light of a general insect attracting lamp. Light emitted from a general insect attracting lamp contains ultraviolet light and blue light as main components. For this reason, for example, in a store where cleanliness is required, such as a restaurant or a food retailer, when the insect trap is installed, the customer visually recognizes the blue light irradiated on the ceiling, wall, etc. from the trap, You may notice the installation. Because the installation of the traps is implied by the presence of insects, customers may have a filthy impression when they notice the traps. However, if the insect trap is not installed, measures against flying insects cannot be taken. Even in this case, there is a possibility that customers may have a filthy impression on the store due to flying insects. For this reason, the insect trap has been required to satisfy both the trapping performance and the concealment of the trap.

  Therefore, in order to alleviate blue, which is a light color peculiar to an insect lamp, for example, an insect trap device in which two types of lamps consisting of an insect lamp and an illumination lamp are arranged inside a lamp cover is known (for example, Patent Document 1). The illumination lamp is composed of, for example, a white fluorescent lamp, and light emitted from the white fluorescent lamp includes components of each color light. The lamp cover is made of a non-translucent material and has an opening on the upper surface, and the combined light of the light from the insect lamp and the light from the white fluorescent lamp is emitted from the opening. Therefore, blue, which is a light color peculiar to the insect lamp, is relaxed by the visible light of the white fluorescent lamp. For this reason, the human eye reacts to the visible light emitted from the lamp lamp among the light emitted from the lamp cover. On the other hand, the insects are attracted to the lamp cover in response to the blue light and ultraviolet light emitted from the insect lamp among the lights emitted from the lamp cover. The attracted insect is captured by an insect capturing sheet disposed in the lamp cover.

  However, in the above insect trapping device, two kinds of lamps, an insect lamp and an illumination lamp, are provided and are arranged so as to be shifted, so that only the blue light of the insect lamp is irradiated on the irradiation surface such as the ceiling surface. It is known to the person that there is an insect trap by the light color.

Moreover, as an insect trap different from the above, an insect trap and a phosphor formed so as to be capable of fluorescent coloration by the ultraviolet light of the insect lamp, an insect trap having an adhesive layer formed on the surface of the phosphor A container is known (see, for example, Patent Document 2). In this trapping device, since an adhesive layer is formed on the surface of the phosphor, this adhesive layer is attracted by the light emitted by the phosphor in addition to the flying insects attracted by the ultraviolet rays of the insect lamp. Catch flying insects that have come to the ground. However, in this capture device, the blue light peculiar to the insect lamp is visually recognized by the person, and it is known to the person that there is an insect trap.
JP 2006-149252 A JP-A-8-33444

  The present invention has been made to solve the above-described conventional problems, and provides an insect trap that makes it difficult for a person to recognize that there is an insect trap by preventing blue light peculiar to an insect lamp from being visually observed. The purpose is to do.

  In order to achieve the above object, the invention of claim 1 is an insect trap provided with a light source that emits light containing ultraviolet rays that attracts insects, and an insect trapping means that captures the insects attracted by the light source. An optical filter that covers the light source and through which light emitted from the light source passes is provided, and the optical filter has a maximum transmittance of about 60% or more of light having a wavelength of about 360 nm to 370 nm and about 400 nm to 450 nm. The maximum transmittance of light with the following wavelengths is 10% or less.

  According to a second aspect of the present invention, in the insect trap according to the first aspect, the optical filter emits visible light or infrared light having a wavelength longer than about 450 nm when excited by light having a wavelength of about 400 nm to 450 nm. The phosphor to be applied is applied.

  According to a third aspect of the present invention, in the insect trap according to the first or second aspect, the optical filter or the casing of the insect trap is provided with a confirmation opening that makes the light source visible from the outside. Is.

  According to a fourth aspect of the present invention, in the insect trap according to the third aspect of the present invention, a light transmitting material in which the confirmation aperture is coated with a phosphor that emits visible light when excited by light having a wavelength of approximately 300 nm to 450 nm. A sex member is provided.

  According to the first aspect of the invention, the amount of blue light having a wavelength of about 400 nm to 450 nm can be reduced by the optical filter, so that the blue light peculiar to the lure lamp can be prevented from being seen by humans. Therefore, it can be made difficult for a person to recognize that there is an insect trap.

  According to the invention of claim 2, when the phosphor emits visible light, the phosphor emits light of a color different from that of the blue light. As a result, it is possible to make it difficult for a person to recognize that there is an insect trap. Further, when the phosphor emits infrared light, it is preferable because the infrared light is not visible.

  According to the invention of claim 3, the lighting / extinguishing state of the attracting lamp can be visually confirmed by the light of the attracting lamp irradiated from the confirmation opening. For this reason, it can recognize quickly that the insect attracting lamp is in a non-lighting state and the trapping performance of the trapping device is reduced. Therefore, it is possible to maintain the insect trapping performance by replacing the insect attracting lamp when it is recognized that the performance of the insect trapper has been lowered.

  According to the invention of claim 4, since the phosphor emits visible light when excited by blue light, the light irradiated to the outside from the translucent member is adjusted by adjusting the material of the phosphor. In addition to the blue light peculiar to the insect lamp, visible light of another light color can be obtained. For this reason, it is possible to maintain the insect capturing performance while making it difficult for a person to recognize that there is an insect trap.

Hereinafter, insect traps according to various embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
Fig.1 (a) (b) shows the structure of the insect trap which concerns on the 1st Embodiment of this invention. This insect trap 1 includes an insect lamp 2 (light source) that emits light attracting insects, an optical filter 3 that covers the insect lamp 2 and is coated with a phosphor 31, and an optical filter 3 that is emitted from the insect lamp 2. The reflecting mirror 4 that reflects the light transmitted through the insect trap, the insect capturing sheet 5 that captures the insect attracted by the attracting lamp 2 (insect capturing means), the attracting lamp 2, the optical filter 3, the reflecting mirror 4, and the insect capturing sheet 5 are accommodated. And a housing 6. The insect attracting lamp 2 irradiates light containing ultraviolet rays because ultraviolet rays have an effect of attracting insects. The housing 6 is made of a non-translucent resin and has a horizontally long rectangular parallelepiped shape. The housing 6 can be divided into two in the vertical direction, and is composed of a lower housing 61 and an upper housing 62. An opening 62 a is formed on the front surface of the upper housing 62. This insect trap 1 irradiates light forward, diagonally upward, and diagonally downward, and the back side is fixed to a portion near the ceiling such as the wall surface W. Hereinafter, the configuration of each part of the insect trap 1 will be described in detail.

  Insect lamp 2 is stored in lower housing 61. A light emission port 61 a is formed on the upper surface of the lower housing 61, and a plate-like optical filter 3 is disposed so as to close the light emission port 61 a and covers the insect attracting lamp 2. The light emitted from the insect attracting lamp 2 passes through the optical filter 3. A lamp replacement opening 61b is formed on the lower surface of the lower housing 61, and a lid member 63 is attached to the lower housing 61 so as to be openable and closable corresponding to the lamp replacement opening 61b. The lid member 63 constitutes the housing 6 together with the lower housing 62 and the upper housing 61. The lid member 63 closes the lamp replacement opening 61 b in the closed state, and prevents light leakage from the lower surface of the lower housing 61.

  The upper housing 62 accommodates the reflecting mirror 4 and the insect capturing sheet 5. The reflecting mirror 4 is disposed above the optical filter 3 in a state where the upper housing 62 is fixed to the upper portion of the lower housing 61, and reflects the light transmitted through the optical filter 3. The reflecting mirror 4 is curved so as to reflect light toward the front of the insect trap 1. The insect trapping sheet 5 has adhesiveness, and is disposed below the reflecting mirror 4 and above the optical filter 3. For example, the insect catching sheets 5 are arranged one by one on the front side and the back side of the housing 6 so as to face each other. These insect trapping sheets 5 are arranged so as to be inclined so that the interval between the casing 6 becomes narrower from the outside toward the inside. Since the reflecting mirror 4 reflects the light from the insect attracting lamp 2, the insect is attracted by the light and flies, for example, collides with the reflecting mirror 4 and falls onto the insect catching sheet 5. In this way, insects can be captured by the insect capturing sheet 5. Further, the insect catching sheet 5 is located above the lower housing 61, and the insect attracting lamp 2 can be taken in and out from the lamp replacement opening 61 b on the lower surface of the lower housing 61. Since it is arranged, there is no possibility that the hand touches the insect catching sheet 5 when the insect attracting lamp 2 is replaced. For this reason, it is possible to prevent the hand from becoming dirty when replacing the insect lamp 2, and the insect lamp 2 can be replaced cleanly. Note that the insect capturing sheet 5 may be made of a translucent member or a transparent member that transmits ultraviolet rays, and may be attached to the outside of the optical filter 3.

  The insect attracting lamp 2 is, for example, in the form of a fluorescent lamp, and for example, one lamp is installed in parallel with the lateral direction of the housing 6, that is, in the longitudinal direction. The insect responds to the stimulation of light irradiation by the insect lamp 2 and moves in a direction. The insects fly toward the insect trap 1. Insect lamp 2 is connected to a socket (not shown), and the socket is electrically connected to a ballast (not shown). The ballast controls the lamp current of the insect lamp 2 and the voltage applied to the insect lamp 2, and controls the lighting of the insect lamp 2 based on the power supplied from the commercial power source.

  The optical filter 3 has a characteristic that the maximum transmittance of light having a wavelength of approximately 360 nm or more and 370 nm or less of the ultraviolet light emitted from the insect attracting lamp 2 is approximately 60% or more. Furthermore, the optical filter 3 has a characteristic that the maximum transmittance of light having a wavelength of approximately 400 nm to 450 nm, that is, blue light, is 10% or less. For this reason, the light quantity of blue light among the ultraviolet rays and blue light which are the main components of the emitted light of the insect attracting lamp 2 can be reduced. The optical filter 3 includes an ultraviolet transmissive glass (hereinafter referred to as glass U330, U340, U360) or a glass U330, U340, or U360 having a maximum transmittance with respect to ultraviolet rays having a wavelength of 330 nm, 340 nm, or 360 nm. Is made of a resinous material coated with a coating material prepared by mixing them with a binder. The material of the binder is, for example, an ultraviolet transmissive resin such as silicon, and the material of the resin member is, for example, acrylic.

  As described above, since the optical filter 3 reduces the amount of blue light, the amount of blue light emitted from the insect lamp 2 to the outside of the insect trap 1 can be suppressed, and the blue light specific to the insect lamp can be prevented from being visually observed. . Accordingly, it is possible to make it difficult for a person to recognize the installation of the insect trap 1. For this reason, even when the insect trap 1 is arranged above a person and the light from the insect lamp 2 is distributed below the insect trap 1, the insect trap 1 is hardly recognized by the person while the insect trap 1 is hardly recognized. A high attraction effect can be achieved for insects flying below 1. In addition, when two kinds of lamps are provided one by one as in the prior art, the cost increases and the replacement frequency increases because the life of each lamp is different. Since the device 1 has one type of lamp and one lamp, the cost can be reduced and the replacement frequency can be reduced. For this reason, the effort concerning management of the insect trap 1 can be reduced.

  The phosphor 31 is applied to the insect filter 2 side of the optical filter 3. The phosphor 31 is excited by light having a wavelength of approximately 400 nm to 450 nm, that is, blue light, of the emitted light of the insect attracting lamp 2, and emits visible light or infrared light having a wavelength longer than approximately 450 nm. That is, when the phosphor 31 emits visible light, the light color is a color other than blue. The phosphor 31 is made of, for example, a phosphor described in Japanese Patent No. 3763719. Visible light or infrared light emitted by the phosphor 31 passes through the optical filter 3 and is emitted to the outside of the insect trap 1.

  When the phosphor 31 emits visible light, the phosphor 31 emits visible light having a color different from that of blue light. Therefore, the color of the light emitted from the insect trap 1 depends on the emission color of the phosphor 31 and the optical filter. 3 is a mixed color with the light color of the blue light peculiar to the insect lamp that was not cut by 3. Therefore, by combining the optical filter 3 and the phosphor 31, the blue light can be made more difficult to see. Moreover, the light color of the irradiation light of the insect trap 1 can be made white by adjusting the material of the phosphor 31 and adjusting the color of the emitted light. Therefore, the insect trap 1 can be disguised as a general lighting fixture. Moreover, since one lamp can irradiate visible light and ultraviolet rays such as UV-A waves (long wavelength ultraviolet rays) having a high insecticidal effect from one insect trap 1, two or more lamps are used as in the prior art. Compared with a combination of lamps, uneven color on the irradiated surface can be eliminated. Furthermore, since the number of lamps is reduced, the circuit configuration of the ballast for controlling the lamps can be simplified, and the number of circuit elements can be further reduced. For this reason, the cost of a ballast can be suppressed. Therefore, the cost of the insect trap 1 can be reduced. On the other hand, it is preferable that the phosphor 31 emits infrared light because the infrared light is not visible. Moreover, the insect trap 1 can be camouflaged in a natural manner on a completely different bowl such as a forehead or a clock.

  FIG. 2 shows an example of frequency characteristics of transmittance in the optical filter 3. The vertical axis of the figure shows the relative value with respect to the maximum transmittance. The transmittance of the optical filter 3 changes in a mountain shape when the light wavelength is in the range of approximately 300 to 400 nm. In the wavelength range of approximately 300 to 400 nm, the transmittance increases as the wavelength of light increases from 300 nm, increases in the range of approximately 360 nm to 370 nm, and decreases as it increases from approximately 370 nm. . Further, the transmittance becomes close to zero at about 400 nm or more and increases again from about 780 nm.

  FIG. 3 shows the light intensity spectra of the two types of insect lamps 2 and the light intensity spectra of the light emitted from the optical filter 3 when these insect lamps 2 and the two types of optical filters 3 are combined. . The vertical axis in the figure indicates a relative value with respect to the maximum light intensity. Here, one of the two types of insect lamps 2 is called an insect lamp L1, and the other is called an insect lamp L2. One of the two types of optical filters 3 is the glass U330, and the other is the glass U340.

  First, the light intensity spectrum when the insect attracting lamp L1 and the glass U330 or the glass U340 are combined will be described. The light intensity of the light emitted from the insect attracting lamp L1 changes in a mountain shape in the range of about 300 to 400 nm, the range of about 400 to 410 nm, and the range of about 430 to 440 nm, and other wavelengths. It is flat in the area (shown in dashed line A). The light having a wavelength of about 300 to 400 nm includes ultraviolet rays, and the light having a wavelength of about 400 to 450 nm is blue light. Therefore, the main components of the emitted light of the insect attracting lamp L1 are ultraviolet rays and blue light. It can be said that there is. In the insect attracting lamp L1, the light intensity of light having a wavelength of about 350 nm is maximized. In FIG. 3, the light intensity of the other light is expressed as a relative value with this light intensity as a reference.

  When the insect attracting lamp L1 is combined with the glass U330 or the glass U340 (hereinafter referred to as the glass U330), the light intensity of the light emitted from the glass U330 or the like has a wavelength of about 400 compared to the case of the attracting lamp L1 alone. It becomes low in the range which is ˜410 nm and the range which is about 430 to 440 nm (indicated by solid lines B and C). The light intensity spectrum in the same range is substantially flat. That is, the amount of blue light among the irradiation light of the insect trap 1 is suppressed by the glass U330 or the like. For this reason, the blue light peculiar to an insect lamp can be prevented from being visually observed. On the other hand, since light in the ultraviolet region is hardly attenuated, a high insecticidal effect can be secured.

  Next, the light intensity spectrum when the insect attracting lamp L2 and the glass U330 are combined will be described. The light intensity of the light emitted from the insect attracting lamp L2 changes in a mountain shape in a wavelength range of about 300 to 400 nm, a range of about 400 to 410 nm, and a range of about 430 to 440 nm, and other wavelengths. It is flat in the area (shown in dashed line D). That is, the main components of the emitted light from the insect attracting lamp L2 are ultraviolet rays and blue light. In the insect attracting lamp L2, the light intensity of light having a wavelength of about 365 nm is maximized.

  When the insect attracting lamp L2 is combined with the glass U330 or the like, the light intensity of light emitted from the glass U330 or the like has a wavelength range of approximately 400 to 410 nm and approximately 430 to 440 nm as compared with the case of the attracting lamp L2 alone. (Indicated by solid lines E and F). Due to this decrease in light intensity, the light intensity spectrum in the same range becomes substantially flat. That is, the amount of blue light among the irradiation light of the insect trap 1 is suppressed by the glass U330 or the like. For this reason, as in the case of the above combination, it is possible to make it difficult for a person to recognize the installation of the insect trap 1 while securing a high insecticidal effect.

(Second Embodiment)
4 (a) and 4 (b) show the configuration of the insect trap 1 according to the second embodiment of the present invention. In the drawings, the same symbols are attached to the same members. The insect trap 1 of this embodiment is different in arrangement of components from the first embodiment and is configured to irradiate light obliquely downward. In the upper housing 62, the insect lamp 2, the reflecting mirror 4, and the ballast 7 are accommodated. The ballast 7 has the same configuration as the ballast described above in the first embodiment. Further, the insect trap sheet 5 having a substantially V-shaped cross-sectional view is fixed to the lower housing 62.

  The front surface of the upper housing 62 is inclined obliquely downward, and a light exit port 62b is formed on the front surface. The reflecting mirror 4 is shaped so as to surround the side of the attracting lamp 2 and has an opening 4a at the front, and the opening 4a is disposed so as to correspond to the light exit port 62b of the upper housing 62. Yes. The optical filter 3 is disposed at the light exit port 62b so as to block the light exit port 62b. The light emitted from the insect attracting lamp 2 reaches the optical filter 3 directly or after being reflected by the reflecting mirror 4. The light transmitted through the optical filter 3 is irradiated outside the insect trap 1 and obliquely downward. The insects are attracted by the irradiation light of the insect trap 1 and fly, collide with the front surface of the upper housing 62 or the optical filter 3 and fall on the insect trap sheet 5. In this way, insects can be captured by the insect capturing sheet 5. Also in this embodiment, the same effect as the first embodiment can be obtained.

(Third embodiment)
5 (a) and 5 (b) show the configuration of the insect trap 1 according to the third embodiment of the present invention. The insect trap 1 is further different in the arrangement of the components compared to the first and second embodiments, and is configured to irradiate light upward. The housing 6 is horizontally long and has an open top surface, and is curved in a circular arc shape in cross section so as to protrude outward from the front surface portion 6a to the bottom surface portion 6b. A back surface portion 6c is suspended from the rear end portion of the bottom surface portion 6b. In the housing 6, a storage portion 6 d for storing an electric circuit such as a ballast 7 is formed near the intersection of the bottom surface portion 6 b and the back surface portion 6 c. The insect catching sheet 5 is provided on the inner surfaces of the front surface portion 6a and the bottom surface portion 6b and excluding the place where the storage portion 6d is formed, according to the inner surfaces. The upper surface portion of the storage portion 6d is substantially horizontal, and extends from the back surface portion 6c with an angle of approximately 90 degrees with the back surface portion 6c.

  Further, on the storage portion 6d, there is provided a reflecting mirror 4 having a substantially L shape in cross section corresponding to the shape of the upper surface portion and the back surface portion 6c of the storage portion 6d. Further, an optical filter 3 is provided so as to close the opening in front of the reflecting mirror 4, and a phosphor 31 is applied inside the optical filter 3. The shape of the optical filter 3 is an arc shape in sectional view that is convex outward. In the space covered by the optical filter 3 and the reflecting mirror 4, the insect attracting lamp 2 is arranged. Also in this embodiment, the same effect as the first embodiment can be obtained.

(Fourth embodiment)
6 (a) and 6 (b) show the configuration of the insect trap 1 according to the fourth embodiment of the present invention. In this insect trap 1, a confirmation opening 8 for confirming the insect attracting lamp 2 is formed in the lid member 63 of the insect trap 1 according to the first embodiment (see FIGS. 1A and 1B). Is. As described above, the lid member 63 is attached to the lower housing 61 so as to be openable and closable corresponding to the lamp replacement opening 61 b provided on the lower surface of the lower housing 61.

  The confirmation opening 8 makes the attracting lamp 2 visible from the outside, and its shape is, for example, a circle. The shape of the confirmation opening 8 is not limited to the above, and may be an ellipse, a rectangle, a polygon, or the like. In the present embodiment, the effect of the first embodiment can be obtained, and the lighting / extinguishing state of the insect lamp 2 is indicated by the light of the insect lamp 2 irradiated from the confirmation opening 8 (indicated by a broken line arrow). It can be confirmed visually. For this reason, it can recognize quickly that the insect attracting lamp 2 is in a non-lighting state and the insect capturing performance of the insect trap 1 is reduced. Therefore, the insect trapping performance can be maintained by replacing the insect attracting lamp 2 when it is recognized that the performance of the insect trap 1 is degraded.

(Fifth embodiment)
7A to 7D show the configuration of the insect trap 1 according to the fifth embodiment of the present invention. Compared to the fourth embodiment, the insect trap 1 has a confirmation opening 8 formed in the optical filter 3 of the insect trap 1 (see FIGS. 4A and 4B) according to the second embodiment. Is different. In this embodiment, the same effect as that of the fourth embodiment can be obtained.

(Sixth embodiment)
FIGS. 8A and 8B show the configuration of the insect trap 1 according to the sixth embodiment of the present invention. In this insect trap 1, a translucent member 9 is provided in the confirmation opening 8 of the insect trap 1 according to the fourth embodiment (see FIGS. 6A and 6B). The translucent member 9 has a plate shape and is made of a transparent member such as transparent glass or transparent resin. A phosphor 91 that is excited by light having a wavelength of approximately 300 nm to 450 nm and emits visible light of a color other than blue is applied to the translucent member 9 on the side of the attracting lamp 2. Accordingly, the phosphor 91 is, for example, light peculiar to an insect lamp, and is excited by blue light having a wavelength of about 400 to 450 nm (indicated by a dashed arrow) to emit visible light. Visible light emitted by the phosphor 91 (shown by a solid line arrow) is emitted to the outside of the insect trap 1 through the translucent member 9. The light emission amount of the phosphor 91 increases or decreases according to the light emission amount of the insect lamp 2.

  Therefore, in the present embodiment, the effects of the first embodiment can be obtained, and the lighting / extinguishing state of the insect attracting lamp 2 can be visually confirmed by the visible light irradiated from the translucent member 9. For this reason, it can recognize quickly that the insect attracting lamp 2 is in a non-lighting state and the insect capturing performance of the insect trap 1 is reduced. Therefore, the insect trapping performance can be maintained by replacing the insect lamp 2 when it is recognized that the performance of the trap trap 1 has been degraded. Further, by adjusting the material of the phosphor 91, the emission color of the phosphor 91 can be adjusted, and the color can be changed to a color other than blue, for example. For this reason, the light radiated to the outside from the confirmation opening 8, that is, the translucent member 9, can be changed to visible light of another light color instead of blue light specific to the insect lamp. As a result, it is possible to maintain the insect trapping performance while making it difficult for the insect trap 1 to be recognized by a person.

(Seventh embodiment)
9A to 9D show the configuration of the insect trap 1 according to the seventh embodiment of the present invention. Compared to the sixth embodiment, the insect trap 1 is provided with a translucent member 9 in the confirmation opening 8 of the insect trap 1 according to the fifth embodiment (see FIGS. 7A to 7D). It differs in that it is provided. Also in this embodiment, the same effect as in the sixth embodiment can be obtained.

  The present invention is not limited to the configurations of the first to seventh embodiments, and various modifications can be made according to the purpose of use. For example, the phosphors 31 and 91 may be applied to the opposite side of the optical filter 3 or the translucent member 9 instead of the attracting lamp 2 side. The phosphors 31 and 91 may emit the same color light. The phosphors 31 and 91 may be made of the same material.

(A) is a perspective view of the insect trap which concerns on the 1st Embodiment of this invention, (b) is the sectional drawing. The frequency characteristic figure of the transmittance | permeability in the optical filter of the said insect trap. The figure which shows the light intensity spectrum of the emitted light of the insect attracting lamp in the said insect trap, and the light intensity spectrum of the irradiation light at the time of the said optical filter arrangement | positioning. (A) is a perspective view of the insect trap which concerns on the 2nd Embodiment of this invention, (b) is the sectional drawing. (A) is a perspective view of the insect trap which concerns on the 3rd Embodiment of this invention, (b) is the sectional drawing. (A) is sectional drawing of the insect trap which concerns on the 4th Embodiment of this invention, (b) is an expanded sectional view of the broken-line frame A part of (a). (A) is a perspective view of an insect trap according to the fifth embodiment of the present invention, (b) is an enlarged perspective view of a broken-line frame B part of (a), (c) is a sectional view of the insect trap, (d) ) Is an enlarged cross-sectional view of a broken line frame C portion of (c). (A) is sectional drawing of the insect trap which concerns on the 6th Embodiment of this invention, (b) is an expanded sectional view of the broken-line frame D part of (a). (A) is sectional drawing of the insect trap which concerns on the 7th Embodiment of this invention, (b) is an expanded sectional view of the broken-line frame E part of (a). Insect light characteristics. The figure which shows the frequency component of the emitted light of an insect attracting lamp.

Explanation of symbols

1 Trapping device 2 Insect lamp (light source)
3 Optical filter 31 Phosphor 5 Insect capturing sheet (insect capturing means)
6 Housing 61 Lower Housing 62 Upper Housing 63 Lid Member 8 Opening for Confirmation 9 Translucent Member 91 Phosphor

Claims (4)

In an insect trap equipped with a light source that irradiates light containing ultraviolet light that attracts insects, and an insect trapping means that captures insects attracted by the light source,
An optical filter that covers the light source and through which light emitted from the light source passes;
The optical filter has characteristics that the maximum transmittance of light having a wavelength of approximately 360 nm to 370 nm is approximately 60% or more and the maximum transmittance of light having a wavelength of approximately 400 nm to 450 nm is 10% or less. A special insect trap.   2. The phosphor that is excited by light having a wavelength of about 400 nm to 450 nm and emits visible light or infrared light having a wavelength longer than about 450 nm is applied to the optical filter. The insect trap as described.   The insect trap according to claim 1 or 2, wherein the optical filter or the housing of the insect trap is provided with a confirmation opening that allows the light source to be visually recognized from the outside.   The translucent member to which the fluorescent substance which is excited by the light of a wavelength of about 300 nm or more and 450 nm or less and which emits visible light is applied is provided in the confirmation opening. Insect trap.

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