KR101300620B1 - A light emitting unit for preventing approach of harmful insects - Google Patents

Abstract

PURPOSE: A light emitting unit with a harmful insect repelling function is provided to repel harmful insects by emitting light of a specific wavelength band which harmful insects dislike. CONSTITUTION: A light emitting unit (1) with a harmful insect repelling function comprises a light emitting device (20) which is arranged on a circuit board and generates blue light, and a light conversion layer (30) which is coated on the light emitting device, converts the blue light emitted from the light emitting device into a specific wavelength band, and emits light of a specific wavelength band. The light conversion layer comprises a red fluorescent layer (31) which is prepared by mixing a red cadmium selenide and an epoxy resin at a 1:3 ratio and is coated on the light emitting device, and a green fluorescent layer (32) which is prepared by mixing a green cadmium selenide and an epoxy resin and is coated on the red fluorescent layer.

Description

Light emitting unit with anti-pest control function {A LIGHT EMITTING UNIT FOR PREVENTING APPROACH OF HARMFUL INSECTS}

The present invention relates to a light emitting unit having a pest access control function that prevents the access of a pest by using light of a specific wavelength band that the pest dislikes and performs an illumination function.

In general, during the summer months, the climate is warm, and many insects such as flies and mosquitoes live there. These pests are not only active in outdoor areas such as mountains and rivers, where they are rare, but are also easily found in homes where people live in everyday life and in bright shopping streets. In order to prevent pests from contacting during outdoor activities such as fishing and mountaineering, medicines such as fumigant, spraying agent and mosquito scent are used or in some cases, a mosquito net is installed. However, since these methods apply chemicals directly to the skin, people with allergies to the skin not only have a rejection reaction, but also have an inconvenience of having to install mosquito nets.

In addition, pests such as flies and mosquitoes fly around and become a vehicle for transferring various germs to humans and animals.

Therefore, conventionally, in order to combat such pests, the insects are attracted to the light and captured or killed. However, the prior art is to attract or capture pests rather than to prevent the original access of the pests in advance, it is difficult to expect a great effect unless the capture and pesticides by the equipment such as pest harvester is not completely made.

In addition, due to the capture of pests approaching the apparatus and the carcasses of the insects after the insecticidal insects, the appearance of the pests is not good, and the bodies of the pests are contaminated and the roughness of the apparatus is impaired. Therefore, there is an inconvenience of having to clean the appliance frequently.

In addition, in the case of exterminating insects, there is a problem in that a minute noise is generated by the parts used to provide inconvenience to the user.

The present invention has been made to solve the above problems, to provide a light emitting unit having a pest access control function that prevents the access of the pest by emitting light of a specific wavelength band that the pest hates, and at the same time performs a general lighting function. .

In order to solve the above problems, the light emitting unit having a pest access preventing function according to the present invention is characterized in that the light emitting device is disposed on the circuit board to generate blue light, and the blue light is coated on the light emitting device and emitted from the light emitting device And a light conversion layer that converts and diverges to a wavelength band, wherein the light conversion layer is formed by applying a resin containing a mixture of red cadmium selenide to the light emitting device, and a green cadmium seleide on the red fluorescent layer. It is characterized in that it is composed of a green fluorescent layer formed by applying a resin mixed with nyde.

The light emitting device is characterized in that the blue light emitting diode having a peak wavelength of 470nm.

The specific wavelength band is characterized in that 590nm ~ 630nm.

delete

delete

delete

The present invention uses a blue light emitting element and red and green phosphors to emit light of a specific wavelength band that the pests do not like, thereby preventing the access of the pests. Therefore, not only can the management cost of cleaning or replacing due to aesthetic problems caused by the dead bodies of pests and reduced illuminance can be realized, and clean and pleasant lighting can be realized.

In addition, the present invention can be implemented not only for the purpose of preventing access to pests but also for general lighting.

In addition, since the present invention uses a blue light emitting element as an excitation body, energy savings of 80% or more can be expected compared to general incandescent lamps. In addition, it can be applied to a variety of finished products utilizing various environmentally friendly energy such as solar and wind power.

In addition, the present invention is harmless to the human body based on the optical technology.

1 is a cross-sectional view schematically showing a light emitting unit having a pest access control function according to the present invention.
2 is a graph showing the wavelength of the light emitting unit having a pest access control function according to the present invention.
3 is a view illustrating a process of manufacturing a light emitting unit having a pest access control function according to the present invention.
Figure 4 is a perspective view showing the structure of a lighting apparatus using a light emitting unit having a pest access prevention function according to the present invention.
5 shows an example of a lighting apparatus using a light emitting unit according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Lighting, such as fluorescent lamps, which are generally used, have a wide wavelength band due to their physical characteristics, and thus have high color temperature and high color rendering properties. However, UV (ultraviolet) light is emitted and many pests and other insects are collected. Lighting such as a three-wavelength light does not emit ultraviolet light, but the blue wavelength band (430 nm), which is a favorite of pests, is emitted at RGB wavelengths to help the pests be collected. On the other hand, the LED itself has a narrow wavelength band, which can avoid UV and 430 nm blue wavelength bands, which is a good environment for insects to be collected. Therefore, in the present invention, a phosphor emitting a wavelength band dislikes insects is applied to a blue light emitting device (LED) having a wavelength of 470 nm in order to solve the color temperature drop, and a phosphor having a red, green, or yellow wavelength band is used to realize a high color temperature. Further coating to implement a light emitting unit. That is, the present invention forms a wide wavelength band to increase color temperature, and minimizes ultraviolet rays and 430 nm bands to filter only wavelength bands of 590 to 630 nm that pests dislike.

1 is a cross-sectional view schematically showing a light emitting unit having a pest access control function according to the present invention, Figure 2 is a graph showing the wavelength of the light emitting unit having a pest access control function according to the present invention.

As shown in FIG. 1, the light emitting unit having a pest access preventing function includes a substrate 10, a blue light emitting device 20, a light conversion layer 30, and the like.

The substrate 10 is implemented as a printed circuit board, and the electrode pattern and the circuit pattern are formed on the substrate 10. The pattern is connected to the electrode of the blue light emitting device 20 by bonding.

One or more blue light emitting elements 20 are disposed on the substrate 10. The blue light emitting device 20 is implemented with an indium gallium nitrogen (InGaN) light emitting diode (LED). The blue light emitting device 20 receives power from an external source and emits blue light having a peak wavelength of 470 nm. That is, since the light emitting unit of the present invention uses the LED of 470nm wavelength band, it is possible to eliminate the wavelength band of 440nm or less that pests like.

The light conversion layer 30 is formed on the blue light emitting device 20 to convert blue light emitted from the blue light emitting device 20 into a specific wavelength band (for example, white light) and emit the light. The light conversion layer 30 includes a red fluorescent layer 31 and a green fluorescent layer 32.

The red phosphor layer 31 is formed by coating the upper portion of the blue light emitting device 20 with a red phosphor mixed with an epoxy resin. The red fluorescent layer 31 is excited by the blue light emitting device 20 to emit red light. The red fluorescent layer 31 is made of cadmium celenide (CdSe) material, and the peak wavelength of red light emitted from the red fluorescent layer 31 is 630 nm.

The green fluorescent layer 32 is formed on the red fluorescent layer 31. The green phosphor layer 32 includes an epoxy resin and a green phosphor. The epoxy resin firmly adheres the green fluorescent layer 32 to the surface of the red fluorescent layer 31 and also serves to protect the blue light emitting device 20 from the outside. The emission peak wavelength of the green fluorescent layer 32 is 500 nm to 550 nm.

Excited by the blue light emitting device 20, the red fluorescent layer 31 and the green fluorescent layer 32 emit red light and green light, respectively. The emitted red and green light are mixed with the blue light emitted from the blue light emitting device 20 to emit a specific wavelength band (for example, white light).

As such, the wavelength band (eg, white light) converted and emitted by the light conversion layer 30 includes a 590 nm to 630 nm band that pests dislike as shown in FIG. 2.

In the above embodiment, a red fluorescent layer and a green fluorescent layer are formed on the light emitting device as an example, but a yellow fluorescent layer and a fluorescent layer of other colors may be further formed.

3 is a view illustrating a process of manufacturing a light emitting unit having a pest access control function according to the present invention.

According to FIG. 3, the epoxy resin and the red phosphor are mixed in a predetermined ratio (eg, a ratio of 1: 3) (a). The red phosphor is a phosphor such as red cadmium selenide (CdSe), and the weight ratio of the red phosphor and the epoxy resin is mixed in a 1: 3 ratio. In other words, in the present invention, a colloidal solution method is used to synthesize the cadmium selenide nanoparticles in an epoxy resin. In this case, the wavelength of the red fluorescent layer 31 may be adjusted according to the synthesis temperature and time.

The resin in which the red phosphor is mixed is coated on the blue light emitting device 20 mounted on the substrate (b). Then, the red phosphor mixed with the resin is coated on the blue light emitting device 20, and then cured and molded through heat treatment to form a red phosphor layer 31 (c).

Thereafter, the green phosphor mixed with the epoxy resin is applied onto the red phosphor layer 31 and cured by heat treatment to form a green phosphor layer 32 (d). As the green phosphor, a sialon (SiAlON) compound and green cadmium selenide (CdSe) may be used. The green phosphor is coated on the red phosphor layer 31 and then heat-treated at 130 ° C. for 90 minutes.

The red fluorescent layer 31 and the green fluorescent layer 32 are light conversion layers 30 that convert blue light emitted from the blue light emitting device 20 into a specific wavelength band (for example, white light).

In the above-described embodiment, a multilayer coating of the red phosphor layer 31 and the green phosphor layer 32 on the blue light emitting element has been described as an example. However, the red phosphor and the green phosphor are mixed with an epoxy resin to form a single layer on the blue light emitting element. Since the coating is to form a light conversion layer 30. At this time, the wavelength of the light emitting unit can be adjusted according to the ratio of the red phosphor and the green phosphor.

Figure 4 is a perspective view showing the structure of a lighting apparatus using a light emitting unit having a pest access prevention function according to the present invention.

As shown in FIG. 4, the lighting apparatus 100 includes a light emitting unit 1, a power supply unit 120, a case 130, and a cover 140.

The light emitting unit 1 includes at least one light emitting element 10 and a driving circuit, and receives power to emit light of the light emitting element 10 under the control of the driving circuit. The light conversion layer 20 is formed on the light emitting device 10 to convert blue light emitted from the light emitting device 10 into white light.

In addition, an aluminum or copper metal plate having excellent thermal conductivity may be installed on the rear surface of the light emitting unit 1 to dissipate heat generated from the light emitting device 10.

The driving circuit converts AC power input through the power supply unit 120 into a DC power using an AC-DC converter (not shown) and supplies the same to the light emitting device 10 to drive the light emitting unit 1.

The power supply unit 120 has a spiral protrusion formed along the outer circumferential surface of the power supply unit 120 so as to be combined with standard lighting sockets for supplying power to the lighting device 100. The power supply unit 120 transfers AC power supplied from the outside to the driving circuit.

The case 130 has a space for accommodating the light emitting unit 1 therein, and is formed such that one surface through which light emitted from the light emitting unit 1 passes is opened. The case 130 may be made of a metal such as aluminum having excellent thermal conductivity so as to discharge heat generated from the light emitting unit 1 to the outside.

The cover 140 is fixed in close contact with the case 130 on an open surface of the case 130 to transmit light. The cover 140 is made of materials such as glass, acrylic, or polycarbonate.

In the above embodiment, the socket type lighting device is described as an example, but the present invention is not limited thereto and may be implemented as various types of lighting devices. For example, as shown in FIG. 5, a fluorescent lamp lighting device (a) and a panel lighting device (b) may be implemented using a light emitting unit according to the present invention, and renewable energy such as solar light and / or wind power. The street lamp c may be implemented.

Although the above has been illustrated and described with respect to the preferred embodiment of the present invention, the present invention is not limited to the above-described embodiment without departing from the gist of the present invention claimed in the claims, having ordinary skill in the art to which the present invention pertains. Anyone can make various modifications as well as such changes are within the scope of the claims.

1: light emitting unit
10: substrate
20: blue light emitting element
30: light conversion layer
31: red fluorescent layer
32: green fluorescent layer
120:
130: Case
140: cover

Claims (8)

A light emitting element disposed on the circuit board to generate blue light;
A light conversion layer coated on the light emitting device and converting the blue light emitted from the light emitting device into a specific wavelength band and emitting the light;
The light conversion layer,
A red fluorescent layer formed by mixing a weight ratio of red cadmium selenide and an epoxy resin in a ratio of 1: 3 and coating the upper portion of the light emitting device;
The light emitting unit having a pest access prevention function, characterized in that consisting of a green fluorescent layer formed by applying a resin mixed with green cadmium selenide on the red fluorescent layer.
The method of claim 1,
The light emitting device is a light emitting unit having a pest access control function, characterized in that the blue light emitting diode having a peak wavelength of 470nm.
delete delete delete delete The method of claim 1,
The specific wavelength band is a light emitting unit having a pest access control function, characterized in that 590nm ~ 630nm.
delete

Images