JP2016165277A - Insect-attracting light source and insect collector including the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an insect-attracting light source which is free from a possibility of damage, life problem, and reduction in an insect-collecting ratio due to output reduction in a long period of use and can adjust and control a wavelength to be fit for collecting an insect, the wavelength corresponding to a kind or the like of an insect to be captured and acquired, with one insect-attracting light source.SOLUTION: Provided is the insect-attracting light source including: a light emission part substrate arranging at least one kind of LED element selected from a blue LED element, a green LED element, a yellow LED element, and a red LED element, emitting visible light, and at least one LED element emitting ultraviolet light; a diffusion plate made of a polycarbonate material and diffusing light emitted from the LED elements; and a control unit controlling light emission from the LED elements individually. The insect collector including the insect-attracting light source is also provided.SELECTED DRAWING: Figure 1

Description

    The present invention relates to an insect light source, and more particularly to an insect light source used in an insect trap for capturing insects using an LED (Light Emitting Diode) element as a light source.

    Currently, as a light source used for an insect lamp or the like, a light source generally called an ultraviolet fluorescent lamp mainly used for emitting ultraviolet rays is widely used.

    This ultraviolet fluorescent lamp is said to be a light source that easily attracts insects with a light source mainly having a center wavelength of 360 nm and also including a visible light wavelength.

    When a fluorescent tube is used in an ultraviolet fluorescent lamp, there is a problem that the lifetime is short and the lamp is burned out. Therefore, it requires time and effort that must be changed frequently. There is also a problem of breakage due to the glass tube. Furthermore, since the ultraviolet output decreases with time, there is a problem that the insect attracting effect also decreases.

    There is an example in which an insecticidal effect is aimed using an ultraviolet LED light source, an ultraviolet LED is turned on, and diffusion is performed using an optical sheet (for example, Patent Document 2). However, in this conventional proposal, the insect attracting effect is not sufficient, although an effect of about 30% is recognized as compared with the fluorescent tube.

    An insect trap for capturing insects collects insects by combining light sources as described above. The collected insects are adhered to sticky paper provided on the lower stage or outside of the trapping device, or stored in a trapping bag or the like to trap the insects.

JP 2008-259448 A JP2013-118823A

    A conventional insect fluorescent lamp using an ultraviolet fluorescent lamp has a problem of breakage due to a glass tube, a problem of life, and a problem of a decrease in catching rate due to a decrease in output when used for a long time. In particular, in the food industry, the problem of breakage is a social and sanitary environment problem such as contamination of foreign matter, and is a major issue that is required to be solved.

    In addition, there is an example in which an ultraviolet LED light source is used to aim at the insect attracting effect, the ultraviolet LED is turned on, and diffusion is performed using an optical sheet. However, the optical sheet is expensive and the ultraviolet transmittance is reduced due to ultraviolet deterioration. There is a problem. In addition, there was a problem that the insect attracting effect was not as great as about 30% as compared with the conventional ultraviolet fluorescent lamp.

    In addition, when an ultraviolet LED light source is used, the LED light source has a problem of directivity, and when trying to adopt it for a conventional insect trap, an instrument having a shape and structure different from that when a conventional ultraviolet fluorescent lamp is used. Is not compatible, such as needing. For this reason, when it was going to employ | adopt an ultraviolet LED light source for the attracting light source of an insect trap, there existed a problem that the shape and structure of the whole insect trap had to be designed again.

    In addition, insects often have different races and types depending on the region. Therefore, it is desirable to use an attracting light source having a wavelength spectrum suitable for collecting the insects according to the type of insects to be captured and captured. However, until now, there has been no suggestion of an attracting light source that can be adjusted and controlled to a wavelength spectrum suitable for collecting the insects in accordance with the kind of insects to be captured and captured with a single attracting light source.

Blue LED element that emits visible light (wavelength: 440 nm to 480 nm), green LED element that emits visible light (wavelength: 510 nm to 545 nm), yellow LED element that emits visible light (wavelength: 570 to 609 nm), visible light At least one LED element selected from red LED elements (wavelength: 610 to 670 nm) that emits
A light emitting unit substrate on which an LED element that emits at least one ultraviolet ray (320 nm to 420 nm) is disposed;
A diffusion plate made of a polycarbonate material that diffuses light emitted from each LED element and transmits ultraviolet rays;
An insect light source including a control unit that individually controls light emission by each LED element.

  It is an insect light source in which the difference in brightness between the brightest part and the darkest part of the light transmitted through the diffuser on the diffuser, that is, brightness unevenness is suppressed within 50%.

  The control unit is an insect light source that individually controls light emission by each LED element so that light having a desired spectral characteristic is emitted from the insect light source, and controls the emission wavelength spectrum of each LED element.

  An insect trap that captures insects gathered in the above-mentioned insect attracting light source, wherein the titanium oxide film is formed on the wall surface of the housing that constitutes the insect catching device and that is irradiated with light from the insect attracting light source. It is a trap that is formed.

  A LED that emits ultraviolet light and a single or a plurality of LEDs that emit visible light such as blue, green, yellow, and red are combined and mounted on the substrate. A control unit capable of individually driving the LEDs of the light emitting unit is provided. A storage unit is provided for storing each wavelength spectrum and light intensity necessary for control of individually driving the LEDs of the light emitting unit by the control unit. An insect light source covered with a diffusion plate that efficiently diffuses ultraviolet rays emitted from the light emitting unit.

  It is an attractant light source intended to capture specific insects by combining any wavelength spectrum with visible light having a blue, green, yellow or red wavelength spectrum mainly composed of ultraviolet wavelengths.

  It is an irritating light source that efficiently uses emitted ultraviolet rays and controls brightness unevenness within 50%.

And it is an insect trap using such an attracting light source.

  It is possible to provide an insect lamp that is free from fear of breakage, a problem of lifespan, and a decrease in catching rate due to a decrease in output when used for a long time.

  It is possible to provide an attracting light source that can be adjusted and controlled to a wavelength spectrum suitable for collecting the insects in accordance with the kind of insects to be captured and captured by one attracting light source.

Block diagram for explaining an embodiment of an insect light source The perspective view of the LED insect light source which abbreviate | omitted one part explaining one Example regarding the arrangement | positioning structure of a diffuser plate Conceptual diagram explaining the structure of insect eyes and the viewing angle for viewing the target part Conceptual diagram explaining the relationship between insect visibility and uneven brightness The conceptual diagram explaining the other Example regarding the arrangement | positioning structure of a diffuser board with the relationship between the arrangement | positioning space | interval (pitch) of the LED element arrange | positioned on a light emission part board | substrate, and the distance between a diffuser plate The perspective view which decomposes | disassembles and demonstrates one Embodiment of a planar light source part 6 is a conceptual diagram for explaining the relationship between the arrangement interval (pitch) of LED elements arranged on the light emitting unit substrate and the diffusion plate in the embodiment shown in FIG. In one embodiment related to the arrangement structure of the diffuser plate of FIG. 2, the wavelength spectrum of the brightest part on the diffuser plate In one embodiment related to the arrangement structure of the diffuser plate in FIG. 2, the wavelength spectrum of the darkest part on the diffuser plate

    The insect light source according to this embodiment includes a light emitting unit substrate on which a plurality of LED elements are arranged, a polycarbonate diffusion plate for diffusing light emitted from each LED element, and light emitted by each LED element individually. A control unit for controlling is provided.

LED elements arranged on the light emitting unit substrate,
Blue LED element that emits visible light (wavelength: 440 nm to 480 nm), green LED element that emits visible light (wavelength: 510 nm to 545 nm), yellow LED element that emits visible light (wavelength: 570 to 609 nm), visible light At least one LED element selected from red LED elements (wavelength: 610 to 670 nm) that emits
The LED element emits at least one ultraviolet ray (320 nm to 420 nm).

  A combination of at least one LED element selected from LEDs emitting blue, green, yellow, and red visible light wavelengths and at least one LED element emitting ultraviolet light (320 nm to 420 nm) on the substrate. And a diffusion plate made of a polycarbonate material capable of sufficiently diffusing light emitted from the LED elements and transmitting ultraviolet rays.

  Since the diffusion plate made of polycarbonate is a general-purpose product, it can be a low-cost light source as compared with the case of diffusing using an optical sheet.

  The diffusion plate made of polycarbonate is excellent in impact characteristics, and there is no risk of breakage unlike the glass material of a conventional fluorescent tube.

  Further, when diffusion is performed using an optical sheet, there is a risk of deterioration due to durability, but this is also greatly improved by using a polycarbonate diffusion plate.

  In the insect light source of the above-described embodiment, there are the following embodiments of the arrangement structure of the diffusion plate of the polycarbonate material described above.

(Embodiment 1 regarding arrangement structure of diffusion plate)
When the shortest arrangement interval between adjacent LED elements is R,
The distance from the center position of the LED element that emits the ultraviolet light to the diffusion plate of the polycarbonate material in the direction in which the LED element is adjacent is R × 1/4.

(Embodiment 2 regarding the arrangement structure of a diffuser)
In the first embodiment, in the direction in which the LED elements are adjacent, the flat plate-like polycarbonate diffuser plate is sandwiched between the LED elements on the light emitting unit substrate, on both sides of the LED elements. Each structure is erected vertically with respect to the light emitting unit substrate.

(Embodiment 3 regarding the arrangement structure of a diffusion plate)
The light source part has a structure in which a cover is covered with a cylindrical shape made of polycarbonate that can transmit and sufficiently diffuse ultraviolet rays.

That is, the diffuser plate has a shape projecting toward the direction away from the LED element disposed on the light emitting unit substrate on the upper side of the light emitting unit substrate,
When the shortest arrangement interval between adjacent LED elements is R,
The radius of curvature of the protruding bay portion of the polycarbonate diffusion plate is larger than R × 1/2.

(Embodiment 4 regarding the arrangement structure of a diffusion plate)
The light source part has a structure in which a cover is covered with a cylindrical shape made of polycarbonate that can transmit and sufficiently diffuse ultraviolet rays.

That is, the diffuser plate has a shape projecting toward the direction away from the LED element disposed on the light emitting unit substrate on the upper side of the light emitting unit substrate,
The distance from the LED element on the light emitting unit substrate to the inner surface of the protruding bay portion of the diffusion plate made of polycarbonate material is larger than the radius of curvature of the protruding bay portion of the diffusion plate made of polycarbonate material.

(Embodiment 5 regarding the arrangement structure of a diffusion plate)
In the direction in which the LED elements are adjacent to each other, the flat plate-like diffusion plate of the polycarbonate material is sandwiched between the LED elements on the light emitting unit substrate, with respect to the light emitting unit substrate on both sides of the LED element. Standing vertically,
When the shortest arrangement interval between adjacent LED elements is R,
The flat diffuser plate has a side length perpendicular to the light emitting unit substrate of R × 1/4. That's it.

  The embodiments of the arrangement structure of the diffusion plate of the polycarbonate material exemplified above are all the difference in brightness between the brightest portion and the darkest portion of the light transmitted through the diffusion plate on the diffusion plate, that is, It is used for the purpose of reducing brightness unevenness.

  In the above-described embodiment, it is desirable that the difference in brightness between the brightest part and the darkest part of the light transmitted through the diffusion plate on the diffusion plate is suppressed to 50% or less.

  In the above embodiment, the control unit individually controls light emission by the LED elements so as to emit light having a desired spectral characteristic from the insect light source, and controls the emission wavelength spectrum of each LED element. It can be.

  Insects often have different races and types depending on the region. The control unit captures and captures with a single insect light source so that the insect light source has a wavelength spectrum suitable for collecting the insects according to the type of insect to be captured and captured. The wavelength spectrum suitable for collecting the insects can be adjusted and controlled according to the kind of the insects.

(Embodiment of insect trap)
The insect trap of this embodiment is an insect trap that captures the insects that have gathered in the insect light source of the above-described embodiment, and is a wall surface of a housing that constitutes the insect trap, and the light from the insect trap light source is A titanium oxide film is formed on the wall surface of the housing to be irradiated.

  Thus, the light source device of the present application is mounted on a substrate by combining at least one LED that emits ultraviolet light and one or more LEDs that emit visible light wavelengths such as blue, green, yellow, and red. A light source unit is provided. Moreover, the light source part is provided with the control part which light-emits each wavelength spectrum. Furthermore, a storage unit is provided for storing each wavelength spectrum and light intensity necessary for control of individually driving the LEDs of the light emitting unit by the control unit. And it is covered with the diffusion plate which diffuses the ultraviolet-ray radiated | emitted from the said light emission part efficiently. Moreover, the power supply part supplied to those control parts and memory | storage parts is provided.

  The LED that emits ultraviolet light includes an LED light source including at least one wavelength of ultraviolet wavelengths from 320 nm to 420 nm.

  Covering the light source part with a cylindrical shape that can transmit UV rays and diffusing sufficiently, cover the cover, reduce unevenness of brightness as much as possible, project it uniformly on the diffuser plate, and the diffuser plate shines. Attracted by

  When this cylindrical light source is placed in a case constituting the insect trap and the light source part is turned on, the insects fly and are attracted to the case part. The attracted insects are captured by an insect capturing section such as an insect capturing sheet below the trap.

  Considering the fact that carbon dioxide is created inside the housing to catch some insects and that the surface of the diffuser plate is difficult to proceed, the light from the lure light source is applied to the housing wall. In some cases, a titanium oxide film is applied.

  The insect trap of the present invention that employs the insect light source of the present invention is an instrument that can easily capture insects and has a long life and can withstand breakage.

  Moreover, the specific insect can be efficiently captured by intentionally radiating the wavelength spectrum preferred by the specific insect or releasing the gas preferred by the insect.

  By combining these elements, insects such as insects can be captured effectively and efficiently, contributing to environmental improvement, hygiene, safety improvement, and the like.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. The present invention is not limited to the above-described embodiment and the following examples, and can be variously modified within the technical scope grasped from the description of the scope of claims.

  Specific embodiments will be described with reference to the accompanying drawings.

  FIG. 1 is a block diagram of an attracting light source. In the illustrated embodiment, the light source unit includes an LED light emitting unit 11, a control unit 5, a storage unit 6, and a power supply unit 7.

  In addition to the LED element 1 that emits ultraviolet light mounted on the light emitting part substrate, the light emitting part 11 includes a blue LED element 2 that emits blue light, a green LED element 3 that emits green light, in the embodiment shown in FIG. A red LED element 4 that emits red light is provided.

  The control unit 5 sends an LED drive control signal 8 to the light emitting unit 11. The storage unit 6 sends the stored wavelength spectrum control signal 9 to the control unit 5. The power supply unit 7 supplies power to each unit.

  The storage unit 6 considers the wavelength dependence of the insects, and the wavelength spectrum is applied to the control unit 5 so that light having a desired spectral characteristic suitable for collecting the insects to be captured and captured is emitted from the attracting light source. Send control signal 9. The light emission by each LED element is individually controlled by the LED drive control signal 8 from the control unit 5 that has received the signal 9, whereby light having a desired spectral characteristic suitable for collecting insects to be captured and captured is attracted to the insect. Irradiated from a light source.

  In this embodiment, the control unit that individually controls the light emission by each LED element includes the control unit 5 and the storage unit 6.

  Since there is wavelength dependence by insects, by changing the spectral wavelength characteristics for specific areas and specific insects, one attracting light source illustrated in FIG. 1 can be used as an attracting light source for different captured and captured insects. be able to. In addition, it is possible to change the characteristics according to the time, and it becomes possible to manage in detail according to the season, region, time, etc., and more effective insect trapping can be achieved.

  The storage unit 6 controls according to the insects to be captured and captured so that such control can be performed by individually controlling light emission by each LED element by the LED drive control signal 8 from the control unit 5. Information and control information according to season, region, time, etc.

  Insects react to ultraviolet light (320 nm to 420 nm), but also to other wavelengths. That is, the reaction also shows visible light such as blue (wavelength: 440 nm to 480 nm), green (wavelength: 510 nm to 545 nm), yellow (wavelength: 570 to 609 nm), and red (wavelength: 610 to 670 nm).

  For example, horizontal leaf etc. show a reaction at 460 to 520 nm. In addition, there is also a race that reacts at 530 to 630 nm in the cocoon class.

  From these facts, it is possible to capture specific insects by combining the wavelengths, and it is possible to capture insects efficiently according to the season or region / time by changing the spectral characteristics for each race and region. The storage unit 6 includes information for individually controlling the light emission by each LED element by the LED drive control signal 8 from the control unit 5 and performing the above-described combination of wavelengths, adjustment of spectral characteristics, and control.

  Since there is a wavelength dependency by insects, it is desirable to change spectral wavelength characteristics for specific areas and specific insects. It may also be desirable to change the characteristics over time. In this way, it is desirable to manage in detail by season, region, time, etc. These changes and correspondences can be made with an insect trap equipped with one insect light source illustrated in FIG. 1 provided with the storage unit 6 and the control unit 5 described above. Thereby, effective trapping can be achieved.

  FIG. 2 is a perspective view of an LED light source in which a part of the embodiment relating to the arrangement structure of the diffusion plate made of polycarbonate material is omitted.

  The diffusing plate 12 of the polycarbonate material of the insect attracting light source 13 has a shape projecting in a direction away from the LED element disposed on the light emitting unit substrate above the light emitting unit substrate (not shown) in the light emitting unit 11. ing. In other words, the light source portion has a structure in which polycarbonate that can transmit and sufficiently diffuse ultraviolet rays is formed in a cylindrical shape and covered with a cover.

  In this way, when the diffusion plate 12 has a shape protruding at the upper side of the light emitting unit substrate, when the shortest arrangement interval between adjacent LED elements is R, diffusion of the polycarbonate material It is desirable that the radius of curvature of the ridge portion of the plate 12 is larger than R × 1/2.

  With such an arrangement structure, the difference in brightness between the brightest portion and the darkest portion of the light on the diffusion plate 12 of the light transmitted through the diffusion plate 12, that is, brightness unevenness is suppressed to within 50%.

  In order to attract insects, the attracting light source 13 is preferably a large subject for the insects. This is because the structure of the insect eye is compound, and the structure for capturing the subject is different from that of humans, and when the object is flying and floating, it often happens that the light source that is the object is lost.

  Therefore, the insect attracting light source 13 is provided with a diffusing plate that diffuses ultraviolet rays well, and if the difference between bright and dark parts including ultraviolet rays, that is, unevenness of light brightness is suppressed to 50% or less, the insect capturing effect is improved. Can be made.

  This is due to the fact that insects react to bright light sources and do not react to dark light sources in the property of reacting to the brightness of light including ultraviolet light. For this reason, it is preferable to improve the brightness unevenness of the light including ultraviolet rays and enlarge the bright part.

  According to the inventor's study, when light composed of at least one or more visible light selected from blue, green, yellow, and red visible light and ultraviolet light passes through the diffusion plate, If the difference in brightness between the brightest part and the darkest part, ie, unevenness in brightness, is suppressed to 50% or less, it is advantageous to exert a better insect attracting effect.

  FIG. 3 illustrates the structure of the worm eye and the viewing angle at which the target portion is viewed. The part shown by the code | symbol 14 in FIG. 3 is a compound eye structure of an insect. The part indicated by reference numeral 15 is the insect optic nerve, and the part indicated by reference numeral 16 is the insect viewing angle.

  The viewing angle of insects is as narrow as several degrees to about 1 degree, and it is easy to imagine losing sight of the target object during flight, based on the structure and the viewing angle of the insect eye relative to the target object.

  The relationship between insect visibility and brightness unevenness will be described with reference to FIG.

  In FIG. 4, reference numeral 17 indicates a case where the difference between the bright part and the dark part of the ultraviolet light on the diffusion plate 12, that is, the brightness unevenness is 50% or more. In this case, only the bright part is recognized and the dark part cannot be recognized in terms of the visibility of the insect, so the intermediate part is not recognized. Therefore, it becomes a point light source in terms of insect visibility, and is recognized as indicated by reference numeral 18 in FIG.

  In FIG. 4, reference numeral 19 indicates a case where the brightness unevenness is suppressed and the difference between the bright and dark portions of the ultraviolet light on the diffusion plate 12, that is, the brightness unevenness is suppressed within 50%. In this case, the entire light source is brightly recognized by the insect. Therefore, the insect is recognized as a large light source as indicated by reference numeral 20. Therefore, the insects fly to the target without losing sight of the position of the light source.

  There is a difference between the insect attracting effect by a light source having a large brightness unevenness with a brightness unevenness exceeding 50% and the insect attracting effect by a light source having a uniform brightness with a brightness unevenness of 50% or less.

  However, conventionally, in the case of small insects such as chironomids and fly flies that are to be captured and captured by an insect trap, the unevenness of brightness exceeds 50%. There is a large difference between the effect of attracting light sources with a brightness of less than 10% and a light source with a uniform light source. According to experiments, in the case of a light source with large brightness unevenness, the capture rate was significantly reduced compared to a light source with uniform brightness. According to the inventor's experiment, in the case of a light source with large brightness unevenness where the brightness unevenness exceeds 50%, only 30% of the insects are compared to a light source having a brightness unevenness of 50% or less and a uniform brightness. It was a result that I could not take.

  The arrangement structure of the diffusion plate made of polycarbonate will be described with reference to FIG.

  As illustrated in FIG. 2, the diffusing plate 12 of the polycarbonate material of the insect attracting light source 13 protrudes in a direction away from the LED element 1 disposed on the light emitting unit substrate above the light emitting unit substrate in the light emitting unit 11. The case where it has the shape which is carrying out, ie, the case where the cover is performed with the cylindrical diffusion sheet is demonstrated.

  In FIG. 5, the diagram on the left side illustrates a state viewed from the direction in which a plurality of LED elements are adjacently arranged on the light emitting unit substrate. In FIG. 5, the diagram on the right side shows the arrangement of the plurality of LED elements arranged on the light emitting unit substrate when viewed from the direction orthogonal to the direction in which the plurality of LED elements are arranged adjacently on the light emitting unit substrate. It explains the interval.

  In the embodiment shown in FIG. 5, at least two LED elements that emit ultraviolet light are arranged on the light emitting unit substrate.

  In the diagram on the right side of FIG. 5, two other LED elements are arranged next to the LED element 1 that emits ultraviolet rays. The shortest arrangement interval between adjacent LED elements is R.

  At this time, when the viewing angle of the LED element is 120 degrees in the direction in which the LED element is adjacent from the center position of the LED element 1 that emits ultraviolet rays, the distance to the polycarbonate diffusion plate is R × 1/2. This is the structure.

That is, in a direction in which a plurality of LED elements are adjacent to each other, a plate-like polycarbonate diffusion plate is sandwiched between the LED elements 1 on the light emitting unit substrate, and the light emitting unit substrates are respectively disposed on both sides of the LED element 1. In the case of a structure standing vertically with respect to the structure, the size indicated by the reference numeral 22A in the drawing on the left side of FIG. 5 is at least R × ^1/2 × ^31/2 .

  Further, in this way, the polycarbonate diffuser plate 12 of the lure light source 13 protrudes in a direction away from the LED element 1 disposed on the light emitting unit substrate above the light emitting unit substrate in the light emitting unit 11. When the shortest arrangement interval between adjacent LED elements is R as shown in the right side of FIG. 5, the radius of curvature of the protruding portion of the polycarbonate diffusion plate is R. It is a structure larger than x1 / 2.

  Furthermore, in the figure on the left side of FIG. 5, the distance from the LED element on the light emitting unit substrate 11 to the inner surface of the protruding portion of the polycarbonate material diffusion plate, which is indicated by reference numeral 22B, is the same as that of the polycarbonate material diffusion plate. It is a structure that is larger than the radius of curvature + R × 1/4 of the ridge.

  Further, as shown in FIGS. 6 and 7, in a direction in which a plurality of LED elements arranged on the light emitting unit substrate are adjacent to each other, the plate-like polycarbonate is sandwiched between the LED elements 1 on the light emitting unit substrate. The diffuser plate 23 made of a material is erected perpendicularly to the light emitting unit substrate on both sides of the LED element 1, and the polycarbonate diffuser plate 12 of the insect light source 13 is a light emitting unit in the light emitting unit 11. When it has the shape which protrudes in the direction which leaves | separates from the LED element 1 arrange | positioned on the light emission part board | substrate on the upper side of a board | substrate, it is the short axis system shown by the code | symbol 22A in the figure on the left side of FIG. Is preferably shorter than the length of the long axis system indicated by reference numeral 22B.

  That is, in the figure on the left side of FIG. 5, the distance from the LED element on the light emitting part substrate to the inner surface of the bay portion of the diffusion plate (the length indicated by reference numeral 22B in the figure on the left side of FIG. 5) is the LED element. In the adjacent direction, the space between the diffusion plates 23 on the flat plate erected perpendicularly to the light emitting unit substrate on both sides of the LED element with the LED element on the light emitting unit substrate therebetween ( It is desirable that the length is greater than the length indicated by the reference numeral 22A in the left side of FIG.

  The size of the long axis system (the length indicated by reference numeral 22B in the left diagram of FIG. 5) is made larger than the size of the short axis system (the length indicated by reference symbol 22A in the left diagram of FIG. 5). So, it becomes a big light source from the viewpoint of insects, and more insects can be captured.

  Instead of an expensive optical sheet, a diffuser made of polycarbonate that transmits general-purpose ultraviolet light is used as the diffuser. A conventional ultraviolet fluorescent lamp tube is provided by placing a polycarbonate diffusion plate in a cylindrical shape with a certain distance above the LED elements on the upper side of the ultraviolet LED and the visible light LED mounted on the light emitting unit substrate and providing a curvature. An optimal light source comparable to the above can be obtained.

  Thus, if the size of the light source defined in the cylindrical shape is set to the same length and size as the conventional ultraviolet fluorescent lamp, and the terminal is provided with an equivalent terminal, the conventional insect trap and insect attractant If the power supply is replaced, the unit has the advantage of being easily replaced. Moreover, if it is cylindrical, since ultraviolet light irradiates in a wide range, it becomes possible to capture insects from the top, bottom, left and right.

  FIG. 6 is a perspective view of the planar light source unit. The polycarbonate diffuser plate 23 is a front / rear diffuser plate. Reference numeral 11 denotes a light emitting unit mounted on the substrate of the LED light source. Reference numeral 24 denotes a side plate, and reference numeral 25 denotes a top plate. FIG. 7 is a side view of the planar light source unit.

  As shown in FIGS. 6 and 7, at least one LED element selected from a blue LED that emits blue, a green LED that emits green, a red LED that emits red, and an LED that emits yellow, and at least The LED element 1 that emits one ultraviolet ray is disposed on the light emitting unit substrate. The viewing angle of the LED element is 120 degrees. In the direction in which the plurality of LED elements are adjacent to each other, the flat plate-like polycarbonate diffusion plate 23 emits light on both sides of the LED element 1 with the LED element 1 on the light emitting unit substrate interposed therebetween. This structure is erected vertically with respect to the partial substrate. In this case, it is as follows.

  As shown on the right side of FIG. 5, when the shortest arrangement interval between adjacent LED elements is R, the plate-like diffusion plate 23 has a side length extending perpendicular to the light emitting unit substrate. Is R × 1/4 or more.

  If it demonstrates in FIG. 7, the length shown with the code | symbol 26 will be R * 1/4 or more.

  In the embodiment of the arrangement structure of the diffusion plate made of the polycarbonate material illustrated and illustrated above, the light is transmitted through the diffusion plates 12 and 23 in the brightest portion and the darkest portion on the diffusion plates 12 and 23. The difference in brightness, that is, brightness unevenness is reduced.

  In particular, in the embodiment of the arrangement structure of the diffusion plate made of the polycarbonate material illustrated and illustrated above, the brightness at the brightest portion on the diffusion plates 12 and 23 of the light transmitted through the diffusion plates 12 and 23 and the brightness at the darkest portion. It is desirable to suppress the difference in brightness, that is, the brightness unevenness within 50%.

  When the brightness unevenness is suppressed to 50% or less, the brightness unevenness as indicated by reference numeral 18 in FIG. 4 is reduced, and the insect catching rate is greatly improved.

  In an actual example, the spacing between adjacent LEDs on the light emitting unit substrate is 40 mm, and the diffusing plate 12 of the polycarbonate material of the insect light source 13 is disposed on the light emitting unit substrate above the light emitting unit substrate in the light emitting unit 11. When it has the shape which protrudes toward the direction away from the LED element 1 currently made, if the curvature of a protrusion part shall be 20 mm or more, a light source part with little light nonuniformity will be formed.

  In FIG. 7, the brightness unevenness is defined by the size (length) indicated by reference numeral 26, but the brightness unevenness hardly occurs in the portion 26 where the brightness unevenness occurs with a large light source such as a flat light source. It is a figure which shows that the part 26 which a brightness nonuniformity generate | occur | produces may be disregarded if the ratio which the remaining part 27 shows to the whole surface is large.

  For example, when the pitch between LED elements is 40 mm, the length of the reference numeral 26 in FIG. 7 is about 10 mm, and the length of the portion indicated by the reference numeral 27 in FIG. It ’s fine.

  FIG. 8 and FIG. 9 are data of one embodiment regarding the arrangement structure of the diffusion plate of FIG. FIG. 8 shows the wavelength spectrum of the brightest part on the diffusion plate, and FIG. 9 shows the wavelength spectrum of the darkest part on the diffusion plate. The brightness unevenness at this time is within 50%.

  The insect light source in this embodiment highly diffuses ultraviolet light. Using this diffused light, for example, when a photocatalytic film is applied on the front surface of the wall inside the insect trap, the photocatalyst advances evenly. As a result, carbon dioxide is easily created, and an insect trap that makes it easy to attract insects that prefer carbon dioxide, such as mosquitoes, is obtained.

  In addition, the titanium oxide film is resistant to dirt and easy to remove, so it is a suitable material for hygiene, and insects are slippery and easy to catch.

  The amount of ultraviolet light emitted from the light source unit 11 described above reacts well with the titanium oxide film applied to the inside of the casing because it is a light source with little brightness unevenness. Further, by arranging them as close as possible, the light energy of ultraviolet rays is received efficiently and excited efficiently. Therefore, more carbon dioxide can be created. The generated carbon dioxide gas is effective for catching specific insects such as mosquitoes.

  By using the insect attracting light source of the present invention and an insect trap using the insect attracting light source, insect trapping can be stably performed, and improvement in hygiene is achieved. For example, pests can be captured by installing them in public facilities. Or, depending on the season, the insects can be controlled according to the region. Furthermore, by installing it on agricultural products, livestock products, etc., pest control can be achieved without using any agricultural chemicals. Therefore, safety and hygiene can contribute to society.

1 UV LED that emits UV light
2 Blue LED emitting blue light
3 Green LED emitting green light
4 LED emitting red or yellow
DESCRIPTION OF SYMBOLS 5 Control part which controls the electric current of LED 6 Storage part which memorize | stores the control signal of each LED 7 LED element, control part, power supply part which supplies power to a memory | storage part 8 Control signal output from a control part 9 Output from storage part Memory signal 10 Power supply supplied from power supply unit 11 LED light emitting unit on which blue LED, green LED, red LED and at least one ultraviolet LED are mounted on a substrate 12 Polycarbonate diffusion plate 13 LED trapping Light source 14 Insect compound eye structure 15 Insect optic nerve 16 Insect viewing angle 17 Schematic diagram of diffuser plate when brightness unevenness is 50% or more on diffuser plate 18 When uneven brightness is 50% or more on diffuser plate Schematic diagram projected on the optic nerve of the insect of the light source shown on the diffuser plate 19 Schematic diagram of the diffuser plate when the brightness unevenness is within 50% on the diffuser plate 20 Brightness unevenness on the diffuser plate is 50 Schematic diagram projected on optic nerve of insect of light source shown on diffusion plate in case of less than% 21 Pitch of adjacent LED arranged on substrate of LED light emitting unit 22 Distance between LED and diffusion plate 22A Cylindrical illumination 22B Long axis system of inner diameter of cylindrical illumination 23 Diffusion plate of flat light source part 24 Side part of flat light source part 25 Top part of flat light source part 26 Diffusion plate of flat light source part causing unevenness of brightness Height 27 The height of the diffuser plate of the flat light source where uneven brightness is unlikely to occur

Claims (9)

Blue LED element that emits visible light (wavelength: 440 nm to 480 nm), green LED element that emits visible light (wavelength: 510 nm to 545 nm), yellow LED element that emits visible light (wavelength: 570 to 609 nm), visible light At least one LED element selected from red LED elements (wavelength: 610 to 670 nm) that emits
A light emitting unit substrate on which an LED element that emits at least one ultraviolet ray (320 nm to 420 nm) is disposed;
A polycarbonate diffuser plate that diffuses light emitted from each LED element;
An insect light source comprising a control unit for individually controlling light emission by each LED element. When the shortest arrangement interval between adjacent LED elements is R,
2. The insect attractant according to claim 1, wherein the distance from the central position of the LED element that emits ultraviolet light to the diffusion plate of the polycarbonate material is R × 1/4 in a direction in which the LED element is adjacent. light source. In the direction in which the LED elements are adjacent to each other, the flat plate-like diffusion plate of the polycarbonate material is sandwiched between the LED elements on the light emitting unit substrate, with respect to the light emitting unit substrate on both sides of the LED element. The insect light source according to claim 2, wherein the insect attracting light source is vertically installed. The diffusion plate has a shape projecting toward the direction away from the LED element disposed on the light emitting unit substrate on the upper side of the light emitting unit substrate,
When the shortest arrangement interval between adjacent LED elements is R,
The lure light source according to claim 1, wherein a radius of curvature of the protruding bay portion of the diffusion plate made of the polycarbonate material is larger than R × 1/2. The diffusion plate has a shape projecting toward the direction away from the LED element disposed on the light emitting unit substrate on the upper side of the light emitting unit substrate,
The distance from the LED element on the light emitting unit substrate to the inner surface of the protruding bay portion of the diffusion plate made of polycarbonate material is larger than the radius of curvature of the protruding bay portion of the diffusion plate made of polycarbonate material. The attracting light source according to claim 1. In the direction in which the LED elements are adjacent to each other, the flat plate-like diffusion plate of the polycarbonate material is sandwiched between the LED elements on the light emitting unit substrate, with respect to the light emitting unit substrate on both sides of the LED element. Standing vertically,
When the shortest arrangement interval between adjacent LED elements is R,
2. The insect attracting light source according to claim 1, wherein the flat diffusion plate has a side length of R × 1/4 or more extending perpendicularly to the light emitting unit substrate. The difference in brightness between the brightest portion and the darkest portion of the light transmitted through the diffuser plate on the diffuser plate is suppressed to 50% or less. An attracting light source according to claim 1. The said control part controls light emission by each said LED element separately so that the light of a desired spectral characteristic may be irradiated from the said attracting light source, and controls the light emission wavelength spectrum of each LED element. The attracting light source according to any one of claims 1 to 7. An insect trap that captures insects gathered in the insect light source according to any one of claims 1 to 8, wherein the insect trap light source is a wall surface of a casing that constitutes the insect trap light source. An insect trap, characterized in that a titanium oxide film is formed on the wall surface of the casing to which is irradiated.

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