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KR101506528B1 - Tunnel lamp - Google Patents

Tunnel lamp Download PDF

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Publication number
KR101506528B1
KR101506528B1 KR1020120131398A KR20120131398A KR101506528B1 KR 101506528 B1 KR101506528 B1 KR 101506528B1 KR 1020120131398 A KR1020120131398 A KR 1020120131398A KR 20120131398 A KR20120131398 A KR 20120131398A KR 101506528 B1 KR101506528 B1 KR 101506528B1
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South Korea
Prior art keywords
led
housing
conductive polymer
diffusion cover
adhesive
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KR1020120131398A
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Korean (ko)
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KR20140064261A (en
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오규봉
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오규봉
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/101—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening permanently, e.g. welding, gluing or riveting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F21V5/043—Refractors for light sources of lens shape the lens having cylindrical faces, e.g. rod lenses, toric lenses

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Led Device Packages (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

본 발명은 커버에 정전기가 발생되지 않게 하여 표면에 먼지 등의 이물질이 붙지 않게 함으로써 조도를 유지시킬 수 있는 LED터널등에 관한 것이다.
이러한 본 발명에 의한 조도를 유지시킬 수 있는 LED터널등은 다수의 LED가 설치된 기판을 지지하는 하우징과, 상기 하우징의 전면에 탈착 가능하게 설치되어 LED로부터 발생된 빛을 확산하여 외부로 조사하는 광확산커버를 포함하는 LED터널등에 있어서, 상기 광확산커버의 표면에 투명한 전도성고분자필름이 접착제로 접착된 것을 특징으로 한다.The present invention relates to an LED tunnel and the like which can maintain the illuminance by preventing static electricity from being generated on the cover to prevent foreign substances such as dust from adhering to the surface.
The LED tunnels or the like capable of maintaining the illuminance according to the present invention include a housing for supporting a substrate on which a plurality of LEDs are mounted, a light source for emitting light emitted from the LED by being diffusely installed on the front surface of the housing, In a LED tunnel or the like including a diffusion cover, a transparent conductive polymer film is adhered to the surface of the light diffusion cover with an adhesive.

Description

조도를 유지시킬 수 있는 LED터널등{Tunnel lamp}LED tunnels and the like that can maintain the illuminance. {Tunnel lamp}

본 발명은 터널에 설치되는 LED 터널등에 관한 것으로서, 상세하게는 커버에 정전기가 발생되지 않게 하여 표면에 먼지 등의 이물질이 붙지 않게 함으로써 조도를 유지시킬 수 있는 LED터널등에 관한 것이다.
[0001] The present invention relates to an LED tunnel installed in a tunnel, and more particularly to an LED tunnel capable of maintaining the illuminance by preventing static electricity from being generated on the cover to prevent foreign matter such as dust from adhering to the surface.

전기, 전자 기술이 발달함에 따라 최근 그 이용이 급증하고 있는 것으로 LED조명수단이 있다. 이러한 LED조명수단은 가로등을 비롯하여 다양한 조명수단으로 사용되고 있다. 이들 중 차량이나 사람이 지나는 터널에 설치된 것으로 LED터널등이 있다. As the development of electric and electronic technologies, LED lighting has been used recently. These LED lighting means are used as various lighting means including street lamps. Among these, LED tunnels are installed in tunnels passing by vehicles or people.

LED 터널등은 통상의 LED등과 같이 다수의 LED를 구비하고 있고, 도로를 향한 전면에는 LED를 보호하고 LED에서 발생되는 빛을 확산시키기 위해 광확산커버가 설치되어 있다. LED터널등의 광확산커버는 통상적으로 PC(Poly Carbonate)로 만들어지며, 이러한 PC는 알칼리에 약한 성질을 갖는다. 따라서, 장시간 사용시 매연 등의 공해 물질에 포함된 알칼리 성분에 의해 커버가 퇴색하여 LED에서 조사되는 빛이 가려져 충분한 조도를 얻을 수 없는 문제가 있었다. LED tunnels and the like are provided with a large number of LEDs such as ordinary LEDs, and a light diffusion cover is provided on the front surface facing the road to protect the LEDs and to diffuse light generated from the LEDs. Light-diffusing covers, such as LED tunnels, are typically made of PC (Poly Carbonate), which has weak alkaline properties. Therefore, there is a problem that the cover is faded by the alkali component contained in the pollution substance such as smoke or the like when used for a long time, and the light irradiated from the LED is covered, and sufficient illumination can not be obtained.

이러한 단점을 개선하기 위하여 개발된 LED터널등으로는 특허 제0988332호가 있다. 이는 LED의 전면에 설치된 합성수지의 표면에 500나노미터로 전도성 고분자 화합물 코팅층을 코팅하고, 상기 전도성 고분자 화합물 코팅층의 상면 양측에 일정 길이로 전도성 재질의 전도성 테잎층을 접착하여 구성한 것이다. The LED tunnel developed to overcome such drawbacks is Patent No. 0988332. The conductive polymeric compound coating layer is coated on the surface of the synthetic resin provided on the front surface of the LED and the conductive polymeric compound layer is coated on the both sides of the conductive polymeric coating layer.

그러나 이러한 종래의 LED터널등을 구성하는 전도성 고분자 화합물 코팅층을 구성하는 산화인듐, 산화주석, 산화티타늄, 이온성계면활성제의 경우에는 불투명하여 LED에서 발생된 빛의 일부가 차단되어 충분한 밝기의 조도를 얻을 수 없고, 비이온성계면활성제의 경우에는 소정기간(6개월 정도)이 경과되면 전도성을 잃게 되는 문제가 있었다.
However, in the case of indium oxide, tin oxide, titanium oxide and an ionic surfactant constituting the conductive polymer compound coating layer constituting the conventional LED tunnel, etc., it is opaque and a part of the light generated from the LED is blocked, In case of the nonionic surfactant, there is a problem that the conductivity is lost when a predetermined period (about 6 months) elapses.

본 발명은 상기와 같은 종래기술의 문제점을 해결하기 위해 개발된 것으로서, 장시간 사용하여도 투명성 및 전도성을 잃지 않아 일정한 조도를 유지시킬 수 있는 LED터널등을 제공하는 것을 목적으로 한다.SUMMARY OF THE INVENTION It is an object of the present invention to provide an LED tunnel which is capable of maintaining a constant illuminance without losing its transparency and conductivity even when it is used for a long time.

특히, PC로 만들어진 광확산커버의 표면에 탈착가능하게 투명전도성 필름 특히, 저가이며 투명성이 우수한 폴리티오펜 계열의 전도성 고분자 화합물로 만들어진 필름을 접착시켜 광확산커버가 알칼리에 의해 노후되는 것을 방지할 수 있게 한 조도를 유지시킬 수 있는 LED터널등을 제공하는 것을 목적으로 한다.
Particularly, a transparent conductive film, in particular, a film made of a polythiophene-based conductive polymer having excellent transparency is adhered to the surface of a light diffusion cover made of PC to prevent the light diffusion cover from being aged by alkali And to provide an LED tunnel capable of maintaining a high illuminance.

이러한 본 발명에 의한 조도를 유지시킬 수 있는 LED터널등은 다수의 LED가 설치된 기판을 지지하는 하우징과, 상기 하우징의 전면에 탈착 가능하게 설치되어 LED로부터 발생된 빛을 확산하여 외부로 조사하는 광확산커버를 포함하는 LED터널등에 있어서, 상기 광확산커버의 표면에 투명한 전도성고분자필름이 접착제로 접착된 것을 특징으로 한다.The LED tunnels or the like capable of maintaining the illuminance according to the present invention include a housing for supporting a substrate on which a plurality of LEDs are mounted, a light source for emitting light emitted from the LED by being diffusely installed on the front surface of the housing, In a LED tunnel or the like including a diffusion cover, a transparent conductive polymer film is adhered to the surface of the light diffusion cover with an adhesive.

본 발명에 의한 LED터널등은 투명성 및 내구성이 우수한 전도성고분자필름을 사용함으로써 장시간 사용하여도 조도가 유지될 수 있게 하는 것이 바람직하므로 상기 전도성고분자필름의 재질로는 폴리티오펜 계열의 전도성 고분자 화합물을 사용하는 것이 바람직하고, 상기 접착제로는 UV(ultraviolet)계 접착제를 사용함으로써 장시간 빛이나 열에 노출되어도 전도성고분자필름이 확산커버로부터 분리되지 않게 하는 것이 바람직하다.
The LED tunnel according to the present invention preferably uses a conductive polymer film having excellent transparency and durability so that it is possible to maintain the illuminance even when it is used for a long time. Therefore, the conductive polymer film may be formed of a conductive polyimide- It is preferable that the conductive polymer film is not separated from the diffusion cover even when exposed to light or heat for a long time by using an ultraviolet (UV) adhesive as the adhesive.

본 발명은 투명성 및 내구성이 우수한 전도성고분자필름을 광확산커버의 표면에 부착시킴으로써 광확산커버가 알칼리나 산 등의 오염물질에 의해 부식되어나 노후되는 것을 방지하여 장시간 조도를 유지할 수 있게 하는 효과가 있다. The present invention has the effect of preventing the light diffusion cover from being corroded or aged by contaminants such as alkali or acid by attaching the conductive polymer film having excellent transparency and durability to the surface of the light diffusion cover, have.

특히, 전도성고분자필름으로 투명성 및 내구성이 우수한 폴리티오펜 계열의 전도성 고분자 화합물을 사용하고, 접착제로는 UV계 접착제를 사용함으로써 장시간 사용하여도 광확산커버가 노후되는 것을 방지하여 원하는 조도를 유지할 수 있는 효과가 있는 것이다.
Particularly, a conductive polymeric film of a polythiophene series having excellent transparency and durability is used as a conductive polymer film, and a UV-based adhesive is used as an adhesive to prevent a light diffusion cover from aging even when used for a long time, There is an effect.

도 1은 본 발명에 따른 조도를 유지시킬 수 있는 LED터널등의 일예를 돗기한 분해사시도이고,
도 2는 도 1에 도시한 조도를 유지시킬 수 있는 LED터널등의 사시도이며,
도 3은 도 2의 A-A단면도이다.1 is an exploded perspective view of an LED tunnel or the like capable of maintaining the illuminance according to the present invention,
Fig. 2 is a perspective view of an LED tunnel or the like capable of maintaining the illuminance shown in Fig. 1,
3 is a sectional view taken along the line AA in Fig.

이하, 첨부된 도면을 참조하여 본 발명을 보다 상세히 설명한다. 그러나 첨부된 도면은 본 발명의 기술적 사상의 내용과 범위를 쉽게 설명하기 위한 예시일 뿐, 이에 의해 본 발명의 기술적 범위가 한정되거나 변경되는 것은 아니다. 또한 이러한 예시에 기초하여 본 발명의 기술적 사상의 범위 안에서 다양한 변형과 변경이 가능함은 당업자에게는 당연할 것이다.
Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. It should be understood, however, that the appended drawings illustrate only the contents and scope of technology of the present invention, and the technical scope of the present invention is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the technical idea of the present invention based on these examples.

본 발명에 의한 조도를 유지시킬 수 있는 LED터널등은 광학산커버가 차량으로 배출되는 공해 물질인 알칼리나 산 등에 의해 노후되는 것을 방지함으로써 장시간 동안 워하는 조도가 유지될 수 있게 한 것으로서, 광확산커버(20)의 표면에 투명한 전도성고분자필름(40)이 접착제(20a)로 접착하여 이루어진 것을 특징으로 한다. LED tunnels and the like capable of maintaining the illuminance according to the present invention prevent aging of the optical acid cover due to alkali or acid, which is a pollutant discharged to a vehicle, thereby maintaining illumination for a long time, And a transparent conductive polymer film 40 is adhered to the surface of the cover 20 with an adhesive 20a.

이러한 본 발명에 의한 LED터널등은 통상적인 터널등과 같이 다수의 LED(11)가 설치된 기판을 지지하는 하우징(10)과, 상기 하우징의 전면에 LED로부터 발생된 빛을 확산하여 외부로 조사하는 광확산커버(20)를 포함한다. The LED tunnel according to the present invention includes a housing 10 for supporting a substrate on which a plurality of LEDs 11 are mounted, such as a conventional tunnel, and a light source And a light diffusion cover (20).

상기 하우징(10)은 도 1내지 도 3에 도시한 바와 같이 배면에 방열핀이 설치되어 있어 LED(11) 및 회로기판으로부터 발생되는 열을 쉽게 배출시킬 수 있도록 구성되어 있다, 물론 종래의 LED터널등과 유사하게 LED(11)는 회로기판 상에 배열되어 있고 상기 하우징(10)은 이러한 회로기판을 지지하는 역할을 하는 것이다. As shown in FIGS. 1 to 3, the housing 10 is provided with radiating fins on the rear surface thereof to easily discharge heat generated from the LED 11 and the circuit board. The LEDs 11 are arranged on a circuit board and the housing 10 serves to support the circuit board.

상기 광확산커버(20)는 상기 LED(11)에서 발생되는 빛을 외부로 확산하여 조사되게 하는 것으로써, 통상의 LED터널등과 유사하게 광확산제를 첨가한 PC(Poly Carbonate)로 압출 또는 사출 성형한 시트(Sheet)로 만들어진다. 이러한 광확산커버(20)는 위에서 설명한 바와 같이 알칼리나 산 등에 취약하여 쉽게 노후되어 광투과율이 떨어지게 되므로 본 발명은 상기한 전도성고분자필름(40)을 더 설치하여 광확산커버(20)를 보호한 것이 특징이다. The light diffusion cover 20 diffuses light emitted from the LED 11 to the outside to be irradiated. The light diffusion cover 20 can be extruded or extruded into a PC (Poly Carbonate) to which a light diffusing agent is added, It is made of injection-molded sheet. Since the light diffusion cover 20 is vulnerable to alkali or acid as described above, the light diffusion cover 20 is easily aged and the light transmittance is lowered. Therefore, the present invention provides the conductive polymer film 40 to protect the light diffusion cover 20 .

통상의 LED터널들과 동일 유사한 구성요소이지만 본 발명의 LED터널등은 도 1내지 도 3에 도시한 바와 같이 상기 하우징(10)의 양단에 단부캡(30)이 설치되어 있다. 이 단부캡(30)은 소켓에 끼워지는 접속핀이 돌출 형성되어 있어 LED(11)에 공급되는 전원 접속 단자의 역할을 한다. 또한 도시하지는 않았지만 LED에 안정적인 전원의 공급을 위한 안정기나 컨버터 등이 더 구비될 수도 있으며, 이러한 구성요소들은 통상의 LED 터널등에 이미 사용되는 것과 동일 유사한 것으로 이에 대한 상세한 설명은 생략한다. The LED tunnels and the like of the present invention are provided with end caps 30 at both ends of the housing 10 as shown in Figs. The end cap 30 serves as a power connection terminal to be supplied to the LED 11 because the connection pin to be inserted into the socket is protruded. Further, although not shown, a stabilizer or a converter for supplying a stable power source to the LED may be further provided, and these components are similar to those used in conventional LED tunnels and the detailed description thereof will be omitted.

상기 전도성고분자필름(40)은 다양한 재질을 사용하여 구성할 수 있다. The conductive polymer film 40 may be formed using various materials.

즉, 투명전도성 재질로는 고분자 계열의 어느 하나를 선택하여 사용할 수 있으나, 폴리아닐린(Polyaniline)은 파랑색으로 투명성이 떨어지므로 폴리티오펜 계열의 고분자 물질을 사용할 수 있으며, 이들의 종류로는 PEDOT(Ethylene Di Oxy Thiophene), PEDOT+PSSA(polystyrenesulfonic acid), PEDOT/PSS(폴리스티렌 술폰산), PEDOT/PVS(폴리비닐 술폰산)등이 사용하는 것이 바람직하다. 즉, 폴리티오펜 계열의 고분자 물질은 저가이고 투명성 및 내구성이 우수하므로 이들을 전도성고분자필름(40)의 재질로 사용하는 것이 바람직하다. As the transparent conductive material, any one of the polymer series may be selected and used. However, since the transparency of the polyaniline is lowered due to the blue color, a polythiophene series polymer material may be used. Examples thereof include PEDOT Ethylene Di Oxy Thiophene), PEDOT + PSSA (polystyrenesulfonic acid), PEDOT / PSS (polystyrenesulfonic acid), PEDOT / PVS (polyvinylsulfonic acid) That is, since the polythiophene-based polymer material is inexpensive and has excellent transparency and durability, it is preferable to use them as a material of the conductive polymer film 40.

상기 전도성고분자필름(40)의 재질로 탄소계열의 고분자 물질을 사용할 수 도 있으나 이는 CNT양이 많아지면 검정색을 띄어 조도가 낮아지는 문제가 있고, Metal Oxide 계열의 ITO, ATO를 사용할 수 있으나 이들은 고가이므로 LED터널등의 제작비용이 지나치게 많이 소요되는 문제가 있으므로 전술한 바와 같이, 폴리티오펜 계열을 사용하는 것이 바람직하다.The conductive polymer film 40 may be made of a carbon-based polymer material. However, when the amount of CNT is increased, a black color is formed to lower the illuminance. Metal oxide-based ITO and ATO can be used, There is a problem that the fabrication cost of the LED tunnels and the like is excessively large. Therefore, it is preferable to use the polythiophene series as described above.

한편, 상기 전도성고분자필름(40)을 광확산커버(20)에 부착하는 접착제(20a)로는 다양한 것이 사용될 수 있다. 즉, 시멘트, 규산소다, 세라믹 등의 무기 접착제나, 영화비닐계, 초산 비닐계, 폴리아미드계 등의 합성계 유기 접착제나, 송진, 아교, 라텍스, 카세인 등의 천연계 유기 접착제 등이 사용될 수 있으나, LED터널등은 5만 시간 이상 장시간 사용하여야 화고 이렇게 장시간 동안 접착력을 유지 하기위해서는 자외선에 강하고, 자외선을 차단하는 기능을 갖는 통상의 UV계 접착제를 사용하는 것이 바람직하다.
As the adhesive 20a for attaching the conductive polymer film 40 to the light diffusion cover 20, various materials may be used. That is, inorganic adhesives such as cement, sodium silicate and ceramics, synthetic organic adhesives such as film vinyl, vinyl acetate and polyamide, and natural organic adhesives such as rosin, glue, latex and casein can be used, LED tunnels and the like should be used for a long time for more than 50,000 hours. In order to maintain the adhesive strength for a long time, it is preferable to use an ordinary UV-based adhesive which is resistant to ultraviolet rays and has a function of blocking ultraviolet rays.

10 : 하우징
11 : LED
20 : 광확산커버
20a : 접착제
30 : 단부캡
40 : 전도성고분자보호필름10: Housing
11: LED
20: Light diffusion cover
20a: Adhesive
30: end cap
40: conductive polymer protective film

Claims (3)

다수의 LED(11)가 설치된 기판을 지지하는 하우징(10)과, 상기 하우징의 전면에 LED로부터 발생된 빛을 확산하여 외부로 조사하는 광확산커버(20)를 포함하는 LED터널등에 있어서,
상기 광확산커버(20)의 표면에 투명한 전도성고분자필름(40)을 접착하는 접착제(20a)와;
상기 전도성고분자필름(40)은 폴리티오펜 계열의 전도성 고분자 화합물인 PEDOT(Ethylene Di Oxy Thiophene), PEDOT+PSSA(polystyrenesulfonic acid), PEDOT/PSS(폴리스티렌 술폰산) 및 PEDOT/PVS(폴리비닐 술폰산) 중 어느 하나를 사용하고,
상기 접착제(20a)는 UV(ultraviolet)계 접착제(20a)이고,
상기 하우징(10)의 배면에는 방열핀이 형성되고 양단부에 설치되는 단부캡(30)을 더 포함하여 구성되는 것을 특징으로 하는 조도를 유지시킬 수 있는 LED터널등.

In a LED tunnel including a housing 10 supporting a substrate on which a plurality of LEDs 11 are mounted and a light diffusion cover 20 for diffusing light generated from LEDs on the front surface of the housing to irradiate the light to the outside,
An adhesive 20a for bonding the transparent conductive polymer film 40 to the surface of the light diffusion cover 20;
The conductive polymer film 40 may be formed of a conductive polymer such as PEDOT, PEDOT + PSSA, PEDOT / PSS, and PEDOT / PVS (polyvinylsulfonic acid), which are conductive polyelectrolyte polymers. Using either one,
The adhesive 20a is an UV (ultraviolet) adhesive 20a,
And an end cap (30) formed on the back surface of the housing (10) and having radiating fins and installed at both ends of the housing (10).

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KR20210094229A (en) 2020-01-21 2021-07-29 백송건설 주식회사 LED direction indicator

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KR200184968Y1 (en) 1997-06-16 2000-06-15 원정희 A lamp having film for anti-fouling and air cleaning
JP2003113262A (en) * 2001-10-01 2003-04-18 Sustainable Titania Technology Inc Method for preventing or cleaning contamination by electrically conductive polymer film and structure having contamination preventing or cleaning function
KR20100018893A (en) * 2008-08-07 2010-02-18 주식회사 엠에스엠텍 Fluorescent LED Light and Fluorescent LED Light Control System with Control Function
KR101152742B1 (en) * 2010-06-21 2012-06-15 박지훈 Electrical lamp having a constant illuminating performance

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KR200184968Y1 (en) 1997-06-16 2000-06-15 원정희 A lamp having film for anti-fouling and air cleaning
JP2003113262A (en) * 2001-10-01 2003-04-18 Sustainable Titania Technology Inc Method for preventing or cleaning contamination by electrically conductive polymer film and structure having contamination preventing or cleaning function
KR20100018893A (en) * 2008-08-07 2010-02-18 주식회사 엠에스엠텍 Fluorescent LED Light and Fluorescent LED Light Control System with Control Function
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Publication number Priority date Publication date Assignee Title
KR20210094229A (en) 2020-01-21 2021-07-29 백송건설 주식회사 LED direction indicator

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