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KR101253266B1 - Led streetlight - Google Patents

Led streetlight Download PDF

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Publication number
KR101253266B1
KR101253266B1 KR1020120105910A KR20120105910A KR101253266B1 KR 101253266 B1 KR101253266 B1 KR 101253266B1 KR 1020120105910 A KR1020120105910 A KR 1020120105910A KR 20120105910 A KR20120105910 A KR 20120105910A KR 101253266 B1 KR101253266 B1 KR 101253266B1
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KR
South Korea
Prior art keywords
lens
light
outer case
secondary lens
led street
Prior art date
Application number
KR1020120105910A
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Korean (ko)
Inventor
하인준
박용우
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주식회사 월드테크
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Priority to KR1020120105910A priority Critical patent/KR101253266B1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/69Details of refractors forming part of the light source
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/66Details of globes or covers forming part of the light source
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • F21S8/08Lighting devices intended for fixed installation with a standard
    • F21S8/085Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F21S8/086Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/502Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/507Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00Globes; Bowls; Cover glasses
    • F21V3/04Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/10Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by coatings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00Refractors for light sources
    • F21V5/007Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00Refractors for light sources
    • F21V5/008Combination of two or more successive refractors along an optical axis
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/58Optical field-shaping elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/72Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Led Device Packages (AREA)

Abstract

PURPOSE: A LED streetlight is provided to reduce the manufacturing cost by injecting and molding a secondary lens for the light diffusion in an integral type. CONSTITUTION: A lens unit(10) comprises a primary lens and a secondary lens. The primary lens protects a low output LED. The secondary lens diffuses the light from the outside of the primary lens. An out case(20) sets up the lens unit. The secondary lens is injected and molded as an integral type, and setup in the out case.

Description

LED 가로등{LED Streetlight}LED street light {LED Streetlight}

본 발명은 LED를 광원으로 하는 LED 가로등에 관한 것으로서, 더욱 상세하게는 다수의 LED를 사용함과 아울러 광 확산을 위한 2차 렌즈가 일체형으로 형성되어 제작비용을 절감할 수 있는 LED 가로등에 관한 것이다. The present invention relates to an LED street light using the LED as a light source, and more particularly, to a LED street light that can reduce the manufacturing cost by using a plurality of LEDs and a secondary lens for light diffusion is integrally formed.

통상적으로 사용되는 LED(Light Emitting Diode)는 발광 다이오드를 의미하며, 빛을 발하는 반도체 소자이다. 이러한 LED는 저전압, 긴 수명, 저가격의 특징으로 램프나 플랫 디스플레이 등에 응용되어 다양하게 사용되고 있다. 근래에는 상기한 LED의 특징과 더불어 눈이 부시거나 엘리먼트가 단락되는 경우가 없고, 특히 약 1백만 시간에 달하는 반영구적인 수명으로 인해 도로의 가로등으로도 많이 이용되고 있는 추세이다.A commonly used light emitting diode (LED) refers to a light emitting diode and is a semiconductor device that emits light. Such LEDs are used in various applications such as lamps or flat displays due to low voltage, long life, and low cost. In recent years, in addition to the characteristics of the LED, there is no glare or short-circuit of the element, and in particular, the semi-permanent life of about 1 million hours is a trend that is also widely used as a street lamp of the road.

이러한 LED 가로등은 보통 하나 또는 다수의 LED를 광원으로 사용하고 있으며, 하나의 LED를 광원으로 사용하는 LED 가로등에서는 LED에서 나오는 빛의 직진성이 너무 강하여 LED 만으로는 넓은 범위의 도로를 밝히지 못하는 점 때문에 LED)의 외부에 확산판을 설치하여, 빛이 주변으로 확산되도록 하고 있었다. 하지만 LED 특유의 직진성으로 인해 확산판에 의해 확산되는 범위가 좁게 형성될 뿐만 아니라 빛의 세기에 있어서도 정면이 약 70~80%의 강한 빛을 낼 수 있지만 측면은 약 20~30%의 빛으로 어둡게 형성되는 문제가 있다.These LED street lights usually use one or more LEDs as light sources, and in LED street lights that use one LED as a light source, the straightness of the light from the LEDs is so strong that the LED alone does not light a wide range of roads. A diffuser plate was installed outside to allow light to diffuse to the surroundings. However, due to the unique straightness of LEDs, not only the range of diffusion by the diffuser is narrowly formed, but also the front side can emit about 70 ~ 80% of strong light in light intensity, but the side is dark with about 20 ~ 30% of light. There is a problem formed.

이와 같이 하나의 LED를 광원으로 하여 LED 가로등을 제작할 경우에는 광원의 눈부심이 강하고 광균일도의 저하로 인하여 실제 설치되는 LED 가로등 사이의 간격이 너무 좁아지는 단점이 있다.As described above, when manufacturing an LED street light using one LED as a light source, the glare of the light source is strong and there is a disadvantage in that the distance between the LED street lamps actually installed is too narrowed due to the decrease in the light uniformity.

한편, 다수의 LED를 광원으로 하는 가로등에서는 1W 정도의 낮은 출력을 갖는 LED를 일정 간격으로 배열하여 LED 가로등을 제작하게 되는데, 이 경우에는 각각의 LED를 보호하기 위한 다수의 원형 렌즈를 별도로 제작함에 따라 고비용이 소요되고, 광의 경로를 제어하기가 어려운 문제점이 있다.On the other hand, in the street light using a plurality of LED light source to produce a LED street light by arranging the LEDs having a low output of about 1W at regular intervals, in this case, to produce a plurality of circular lenses to protect each LED separately. Therefore, a high cost is required and it is difficult to control the path of light.

이에 따라 외주연이 볼록하게 돌출되는 확산렌즈와 광학렌즈를 이용하여 빛의 세기가 동일하게 조사되도록 한 LED 가로등이 개발되어 출원 및 등록되기도 하였다. Accordingly, LED streetlights have been developed, applied for, and registered such that light intensity is irradiated equally by using a diffusing lens and an optical lens, which protrude convexly.

KRKR 10-093022810-0930228 B1B1 KRKR 10-113278310-1132783 B1B1

상기 종래 기술의 문제점을 해결하기 위한 본 발명의 목적은, LED 광원을 각각 보호하는 1차 렌즈의 외측에 설치되어 광을 확산시키는 2차 렌즈를 일체형으로 구성하여 저가의 저출력 LED 다수를 사용하면서도 광 효율을 높일 수 있는 LED 가로등을 제공함에 있다.An object of the present invention for solving the problems of the prior art, the secondary lens is installed on the outside of the primary lens to protect the LED light source, respectively, to integrally configure the secondary lens to diffuse the light while using a large number of low-cost low-power LED It is to provide an LED street light that can increase the efficiency.

상기 기술적 과제를 해결하기 위한 본 발명의 LED 가로등은, 가로 방향과 세로 방향을 따라 각각 일정 간격으로 배열되는 복수의 저출력 LED와, 상기 저출력 LED를 보호하는 반구형의 1차 렌즈와, 상기 1차 렌즈의 외측에서 빛을 확산시키는 유선 형상의 2차 렌즈를 포함하는 렌즈부와; 상기 렌즈부가 설치되는 외부 케이스;로 이루어지고,LED street light of the present invention for solving the above technical problem, a plurality of low-power LEDs arranged at regular intervals in the horizontal and vertical directions, respectively, a hemispherical primary lens for protecting the low-output LED, and the primary lens A lens unit including a streamlined secondary lens for diffusing light from the outside; An outer case in which the lens unit is installed;

상기 2차 렌즈는 일체로 사출 성형되어 외부 케이스에 설치되는 것을 특징으로 한다. The secondary lens is integrally injection molded, characterized in that installed in the outer case.

바람직하게, 상기 2차 렌즈는 광 확산을 통해 광 균일도를 유지하면서도 눈부심을 억제할 수 있도록 축대칭 광학계를 갖는 것을 특징으로 한다.Preferably, the secondary lens has an axisymmetric optical system so as to suppress glare while maintaining light uniformity through light diffusion.

바람직하게, 상기 2차 렌즈는, 옆으로 빠지는 광을 중심부로 모아주도록 내부면 상측이 반구형 단면을 갖도록 형성되고 하측은 원형 단면을 갖도록 형성됨과 아울러 외부면은 광을 발산하도록 곡면 형태로 형성된 것을 특징으로 한다.Preferably, the secondary lens is formed to have a hemispherical cross section on the upper side of the inner surface to collect light that falls out to the center, and a lower side to have a circular cross section, and the outer surface is formed in a curved shape to emit light. It is done.

바람직하게, 상기 2차 렌즈는 상기 외부 케이스에 부착시키기 위한 탄성 소재와 함께 이중 사출되는 것을 특징으로 한다.Preferably, the secondary lens is characterized in that the double injection with the elastic material for attaching to the outer case.

바람직하게, 상기 2차 렌즈는 그 외측 표면에 굴절율 및 광각의 증대를 위한 임의의 형상이 가공되어 비구면 형태를 갖는 것을 특징으로 한다.Preferably, the secondary lens is characterized in that the outer surface thereof is processed into any shape for increasing the refractive index and wide angle to have an aspherical shape.

바람직하게, 상기 외부 케이스는 상기 2차 렌즈가 부착되는 2개의 경사면을 구비하고, 상기 경사면은 서로 대칭을 이루는 것을 특징으로 한다.Preferably, the outer case has two inclined surfaces to which the secondary lens is attached, and the inclined surfaces are symmetric with each other.

바람직하게, 상기 외부 케이스는 방열 효율의 향상을 위하여 일체형 다이캐스팅 공법으로 제작되고, 표면에 탄소나노튜브가 도포된 것을 특징으로 한다.Preferably, the outer case is manufactured by an integrated die casting method for improving heat dissipation efficiency, characterized in that the carbon nanotubes are coated on the surface.

바람직하게, 상기 외부 케이스의 일측에 방열부가 구비된 것을 특징으로 한다.Preferably, the heat dissipation unit is provided on one side of the outer case.

상술한 바와 같은 본 발명은 낮은 단가의 저출력 LED를 사용하면서도 렌즈를 이중으로 사용하여 광을 충분히 확산시키고 2차 렌즈를 일체형으로 사출 성형함으로써 가로등의 제작 단가를 줄임과 아울러 광의 경로를 용이하게 제어할 수 있게 되는 효과가 있다.The present invention as described above, while using a low-cost low-power LED of low unit price, by using a double lens to sufficiently diffuse the light and the injection molding of the secondary lens integrally to reduce the manufacturing cost of the street light and to easily control the light path. There is an effect that becomes possible.

그리고, 2차 렌즈에서의 광 확산을 통해 광 균일도를 유지할 수 있음은 물론 축대칭 광학계를 통해 눈부심을 억제할 수 있는 효과가 있다.In addition, the light uniformity may be maintained through light diffusion from the secondary lens, and the glare may be suppressed through the axisymmetric optical system.

또, 다수의 2차 렌즈를 일체형으로 사출하면서 실리콘이나 우레탄 등의 탄성 소재를 이용한 이중 사출하게 되므로, 실외 사용에 있어서 습기 또는 누수 등에 대비할 수 있음은 물론 조립 공정이 단순화되는 효과가 있다.In addition, since a plurality of secondary lenses are integrally injected and double injection is made using an elastic material such as silicone or urethane, it is possible to prepare for moisture or water leakage in outdoor use as well as simplify the assembly process.

또한, 2차 렌즈의 표면에 임의 형상을 적용한 비구면 방식의 렌즈 구성을 통해 광로의 거리를 증대시킴으로써 넓고 밝은 시야의 확보가 가능하게 되는 효과가 있다.In addition, it is possible to secure a wide and bright field of view by increasing the distance of the optical path through the aspherical lens configuration in which an arbitrary shape is applied to the surface of the secondary lens.

또, 외부 케이스가 일체형 다이캐스팅 공법으로 형성되어 방열 효율이 향상되고 표면에 탄소나노튜브가 적용되어 약 5도 정도의 온도 저하 효과를 얻을 수 있어 방열 성능이 향상되는 효과가 있다.In addition, since the outer case is formed by an integrated die casting method, heat dissipation efficiency is improved, and carbon nanotubes are applied to the surface to obtain a temperature lowering effect of about 5 degrees, thereby improving heat dissipation performance.

또한, 외부 케이스에 형성된 경사면에 2차 렌즈가 부착됨과 아울러 외부 케이스에 별도의 방열부가 구비되어 방열 성능이 향상되는 효과가 있다.In addition, the secondary lens is attached to the inclined surface formed on the outer case and a separate heat dissipation unit is provided on the outer case, thereby improving heat dissipation performance.

도 1은 본 발명에 따른 LED 가로등의 외관 사시도.
도 2는 본 발명의 요부 구성인 렌즈부의 일부 단면도.
도 3은 본 발명의 요구 구성인 2차 렌즈의 사시도.
도 4는 본 발명의 요부 구성인 2차 렌즈의 평면도.
도 5는 본 발명의 요부 구성인 2차 렌즈의 단면도.
도 6은 본 발명의 요부 구성인 외부 케이스의 사시도이다.
1 is an external perspective view of an LED street light according to the present invention.
2 is a partial sectional view of a lens unit which is a main component of the present invention.
3 is a perspective view of a secondary lens that is a required configuration of the present invention.
4 is a plan view of a secondary lens that is a main component of the present invention.
5 is a cross-sectional view of a secondary lens that is a main component of the present invention.
6 is a perspective view of an outer case which is a main component of the present invention.

상기한 목적을 달성하기 위한 본 발명은, 가로 방향과 세로 방향을 따라 각각 일정 간격으로 배열되는 복수의 저출력 LED와, 상기 저출력 LED를 보호하는 반구형의 1차 렌즈와, 상기 1차 렌즈의 외측에서 빛을 확산시키는 유선 형상의 2차 렌즈를 포함하는 렌즈부와; 상기 렌즈부가 설치되는 외부 케이스;로 이루어지고, 상기 2차 렌즈는 일체로 사출 성형되어 외부 케이스에 설치되는 것을 특징으로 하는 LED 가로등을 제공함으로써 달성하였다.The present invention for achieving the above object, a plurality of low-power LEDs arranged at regular intervals in the horizontal and vertical directions, respectively, a hemispherical primary lens for protecting the low-output LED, and from the outside of the primary lens A lens unit including a streamline secondary lens for diffusing light; The lens unit is provided; the outer case is made, and the secondary lens is achieved by providing an LED street light, characterized in that the injection molded integrally installed on the outer case.

이하, 본 발명의 바람직한 실시 예를 첨부한 도면에 의하여 상세하게 설명한다. 이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니 되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다. 따라서, 본 명세서에 기재된 실시 예와 도면에 도시된 구성은 본 발명의 가장 바람직한 하나의 실시 예에 불과할 뿐이고, 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형 예들이 있을 수 있음을 이해하여야 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications are possible.

도 1은 본 발명에 따른 LED 가로등의 외관 사시도이고, 도 2는 본 발명의 요부 구성인 렌즈부의 일부 단면도이며, 도 3은 본 발명의 요구 구성인 2차 렌즈의 사시도이다. 그리고, 도 4는 본 발명의 요부 구성인 2차 렌즈의 평면도이고, 도 5는 본 발명의 요부 구성인 2차 렌즈의 단면도이며, 도 6은 본 발명의 요부 구성인 외부 케이스의 사시도이다.1 is an external perspective view of an LED street light according to the present invention, FIG. 2 is a partial cross-sectional view of a lens unit which is a main component of the present invention, and FIG. 3 is a perspective view of a secondary lens that is a required configuration of the present invention. 4 is a plan view of a secondary lens that is a main component of the present invention, FIG. 5 is a cross-sectional view of a secondary lens that is a main component of the present invention, and FIG. 6 is a perspective view of an outer case of a main component of the present invention.

도시된 바와 같이, 본 발명의 LED 가로등은, 가로 방향과 세로 방향을 따라 각각 일정 간격으로 배열되는 복수의 저출력 LED(11)와, 상기 저출력 LED(11)를 보호하는 반구형의 1차 렌즈(12)와, 상기 1차 렌즈(11)의 외측에서 빛을 확산시키는 유선 형상의 2차 렌즈(13)를 포함하는 렌즈부(10)와, 상기 렌즈부(10)가 설치되는 외부 케이스(20)를 포함하여 이루어진다.As shown, the LED street light of the present invention, a plurality of low-power LEDs 11 arranged at regular intervals in the horizontal direction and the vertical direction, respectively, and the hemispherical primary lens 12 to protect the low-output LED 11 ), A lens unit 10 including a streamlined secondary lens 13 that diffuses light from the outside of the primary lens 11, and an outer case 20 in which the lens unit 10 is installed. It is made, including.

이때, 상기 2차 렌즈(13)는 각각 독립적으로 형성되지 않고 일체로 사출 성형되어 상기 외부 케이스(20)에 설치되는 것이 바람직하다. 또, 상기 2차 렌즈(13)는 상기 외부 케이스에 부착시키기 위한 탄성 소재와 함께 이중 사출되는 것이 더욱 바람직하다. At this time, the secondary lens 13 is not formed independently of each other is preferably integrally injection molded and installed in the outer case 20. In addition, the secondary lens 13 is more preferably double injection with the elastic material for attaching to the outer case.

한편, 상기 2차 렌즈(13)는 광 확산을 통해 광 균일도를 유지하면서도 눈부심을 억제할 수 있도록 축대칭 광학계를 갖는다. 그리고 상기 2차 렌즈(13)는 배광을 넓히고 조도의 균제도를 높게 할 수 있도록 설계되는데, 렌즈 중심에서 상측은옆으로 빠지는 광을 중심부로 모아주도록 내부면이 반구형 단면을 갖도록 형성되고, 렌즈 중심에서 하측은 광을 중심부로 모아주도록 원형 단면을 갖도록 형성된다. 또, 상기 2차 렌즈(13)의 외부면은 광을 발산하도록 곡면 형태로 형성되며, 전체적으로는 유선형상이 되도록 한다.On the other hand, the secondary lens 13 has an axisymmetric optical system to suppress glare while maintaining light uniformity through light diffusion. And the secondary lens 13 is designed to widen the light distribution and to increase the uniformity of the illumination, the image from the center of the lens is formed so that the inner surface has a hemispherical cross-section so as to collect the light that falls sideways to the center, The lower side is formed to have a circular cross section to collect light to the center. In addition, the outer surface of the secondary lens 13 is formed in a curved shape to emit light, so as to be a streamline as a whole.

또한, 상기 2차 렌즈(13)의 표면에는 굴절율 및 광각의 증대를 위하여 돌기나 쐐기 및 요철과 같은 임의의 형상이 가공되어 비구면 형상을 갖도록 하는 것이 바람직하다. 이와 같이 렌즈의 표면에 임의의 형상을 가공하는 경우 렌즈가 비구면 형상을 가짐과 아울러 돌기나 쐐기 등의 형상으로 인해 광로의 거리가 증대되어 보다 넓고 밝은 시야를 확보할 수 있게 된다.In addition, in order to increase the refractive index and the wide angle, an arbitrary shape such as protrusions, wedges, and irregularities may be processed on the surface of the secondary lens 13 to have an aspherical surface shape. As described above, in the case of processing any shape on the surface of the lens, the lens has an aspherical shape and the distance of the optical path is increased due to the shape of the projection or the wedge, thereby ensuring a wider and brighter view.

한편, 상기 외부 케이스(20)에는 상기 2차 렌즈(13)가 부착되는 2개의 경사면(21)이 형성됨과 아울러 상기 경사면(21)의 측부에는 방열부(22)가 구비된다. 이때, 상기 경사면(21)들은 서로 대칭을 이루도록 형성된다. 그리고, 상기 외부 케이스(20)는 방열 효율의 향상을 위하여 일체형 다이캐스팅 공법으로 제작되고, 표면에 탄소나노튜브(CNT; Carbon Nano Tube)가 도포되는 것이 바람직하다. Meanwhile, two inclined surfaces 21 to which the secondary lens 13 is attached are formed on the outer case 20, and a heat dissipation part 22 is provided on the side of the inclined surface 21. In this case, the inclined surfaces 21 are formed to be symmetrical with each other. In addition, the outer case 20 is manufactured by an integrated die casting method to improve heat dissipation efficiency, and carbon nanotubes (CNTs) are preferably coated on the surface.

이와 같이 상기 외부 케이스(20)를 일체형 다이캐스팅 공법으로 제작하고 방열부(21)를 형성하게 되면 외부 케이스(20)에서의 방열 성능이 향상되고, 상기 외부 케이스(20)의 표면에 CNT를 적용하게 되면 약 5℃ 정도의 온도 저하가 가능해진다. As such, when the outer case 20 is manufactured by the integrated die casting method and the heat dissipation part 21 is formed, the heat dissipation performance of the outer case 20 is improved, and CNT is applied to the surface of the outer case 20. When the temperature is about 5 ℃ can be reduced.

이상과 같이, 본 발명은 비록 한정된 실시 예와 도면에 의해 설명되었으나, 본 발명은 이것에 의해 한정되지 않으며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 본 발명의 기술 사상과 아래에 기재될 청구범위의 균등 범위 내에서 다양한 수정 및 변형이 가능함은 물론이다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Various modifications and variations are possible within the scope of the appended claims.

10: 렌즈부 11: 저출력 LED
12: 1차 렌즈 13: 2차 렌즈
14: 탄성 소재 20: 외부 케이스
21: 경사면 22: 방열부
10: lens unit 11: low power LED
12: Primary lens 13: Secondary lens
14: elastic material 20: outer case
21: slope 22: heat dissipation

Claims (8)

가로 방향과 세로 방향을 따라 각각 일정 간격으로 배열되는 복수의 저출력 LED와, 상기 저출력 LED를 보호하는 반구형의 1차 렌즈와, 상기 1차 렌즈의 외측에서 빛을 확산시키는 유선 형상의 2차 렌즈를 포함하는 렌즈부와;
상기 렌즈부가 설치되는 외부 케이스;로 이루어지고,
상기 2차 렌즈는 일체로 사출 성형되어 상기 외부 케이스에 설치되고, 옆으로 빠지는 광을 중심부로 모아주도록 내부면 상측이 반구형 단면을 갖도록 형성되며 하측은 원형 단면을 갖도록 형성되되, 외부면은 광을 발산하도록 곡면 형태로 형성되고, 상기 외부 케이스에 부착시키기 위한 탄성 소재와 함께 이중 사출되는 것을 포함하고,
상기 외부 케이스는 방열 효율의 향상을 위하여 일체형 다이캐스팅 공법으로 제작되고, 표면에 탄소나노튜브가 도포되어 방열 기능을 향상시키는 것을 특징으로 하는 LED 가로등.
A plurality of low-power LEDs arranged at regular intervals along the horizontal and vertical directions, a hemispherical primary lens for protecting the low-output LED, and a streamline secondary lens for diffusing light from the outside of the primary lens. A lens unit including;
An outer case in which the lens unit is installed;
The secondary lens is integrally injection-molded and installed in the outer case, and the upper side of the inner surface is formed to have a hemispherical cross section and the lower side is formed to have a circular cross section so as to collect light that falls out to the center. It is formed in a curved shape to diverge, and includes a double injection with an elastic material for attaching to the outer case,
The outer case is made of an integrated die casting method to improve the heat dissipation efficiency, the LED street light, characterized in that the carbon nanotubes are coated on the surface to improve the heat dissipation function.
제1항에 있어서,
상기 2차 렌즈는,
광 확산을 통해 광 균일도를 유지하면서도 눈부심을 억제할 수 있도록 축대칭 광학계를 갖는 것을 특징으로 하는 LED 가로등.
The method of claim 1,
The secondary lens,
An LED street light having an axisymmetric optical system to suppress glare while maintaining light uniformity through light diffusion.
삭제delete 삭제delete 제1항에 있어서,
상기 2차 렌즈는,
그 외측 표면이 굴절율 및 광각의 증대를 위해서 비구면 형태로 형성되는 것을 특징으로 하는 LED 가로등.
The method of claim 1,
The secondary lens,
An LED street light, characterized in that the outer surface is formed in an aspherical shape for the purpose of increasing the refractive index and wide angle.
제1항에 있어서,
상기 외부 케이스는,
상기 2차 렌즈가 부착되는 2개의 경사면을 구비하고,
상기 경사면은 서로 대칭을 이루는 것을 특징으로 하는 LED 가로등.
The method of claim 1,
The outer case,
It has two inclined surfaces to which the secondary lens is attached,
The inclined surfaces are symmetrical with each other LED street light.
삭제delete 제1항에 있어서,
상기 외부 케이스의 일측에 방열부가 구비된 것을 특징으로 하는 LED 가로등.

The method of claim 1,
LED street light, characterized in that the heat dissipation unit is provided on one side of the outer case.

KR1020120105910A 2012-09-24 2012-09-24 Led streetlight KR101253266B1 (en)

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WO2015065400A1 (en) * 2013-10-30 2015-05-07 Hewlett-Packard Development Company, L.P. Nanotube coated electronic device housing wall
KR101664305B1 (en) * 2014-08-29 2016-10-25 순천대학교 산학협력단 Secondary lens plate, LED lighting apparatus and Method for manufacturing secondary lens plate
KR101997669B1 (en) 2019-01-16 2019-07-08 (주)세광산업조명 LED Module with Heat Dissipating PCB and Manufacturing Method Thereof
KR20240149218A (en) 2023-04-05 2024-10-14 주식회사 디케이조명 LED streetlight head

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JP2010526421A (en) * 2007-05-04 2010-07-29 ルード ライティング,インコーポレーテッド Sealing and heat adaptive configuration in LED elements
KR100862540B1 (en) 2008-04-25 2008-10-09 이위재 Led lamp for street light
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Publication number Priority date Publication date Assignee Title
WO2015065400A1 (en) * 2013-10-30 2015-05-07 Hewlett-Packard Development Company, L.P. Nanotube coated electronic device housing wall
US10444799B2 (en) 2013-10-30 2019-10-15 Hewlett-Packard Development Company, L.P. Nanotube coated electronic device housing wall
KR101664305B1 (en) * 2014-08-29 2016-10-25 순천대학교 산학협력단 Secondary lens plate, LED lighting apparatus and Method for manufacturing secondary lens plate
KR101997669B1 (en) 2019-01-16 2019-07-08 (주)세광산업조명 LED Module with Heat Dissipating PCB and Manufacturing Method Thereof
KR20240149218A (en) 2023-04-05 2024-10-14 주식회사 디케이조명 LED streetlight head

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