KR20080021899A - Led lighting apparatus - Google Patents

Led lighting apparatus Download PDF

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Publication number
KR20080021899A
KR20080021899A KR1020060085066A KR20060085066A KR20080021899A KR 20080021899 A KR20080021899 A KR 20080021899A KR 1020060085066 A KR1020060085066 A KR 1020060085066A KR 20060085066 A KR20060085066 A KR 20060085066A KR 20080021899 A KR20080021899 A KR 20080021899A
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South Korea
Prior art keywords
light
casing
circuit board
leds
reflection
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KR1020060085066A
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Korean (ko)
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김남호
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김남호
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Priority to KR1020060085066A priority Critical patent/KR20080021899A/en
Publication of KR20080021899A publication Critical patent/KR20080021899A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-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
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-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
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/62—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using mixing chambers, e.g. housings with reflective walls
    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/05—Optical design plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/80—Light emitting diode

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Planar Illumination Modules (AREA)

Abstract

A LED(Light Emitting Diode) lighting apparatus is provided to reduce maintenance cost by a ling life span and low power consumption and prevent an electric shock at a low voltage. An LED lighting apparatus is equipped with a casing(20), a reflection panel(30), a circuit board(40), a plurality of LEDs(50), and a reflection light guide panel(60). An input power connector(21) is installed on a top surface of the casing. The input power connector is buried in an indoor ceiling or projects. The input power connector is connected to a main power supply. The LEDs are arranged on the circuit board in series or in parallel at a predetermined interval. The reflection panel is made of a material which reflects light. A light diffusion film(70) is applied onto a surface of the reflection light guide panel. The circuit board applies power to the LEDs and controls the LEDs.

Description

LED 등기구{LED LIGHTING APPARATUS}LED luminaires {LED LIGHTING APPARATUS}

도 1은 본 발명에 따른 LED 등기구의 분해사시도,1 is an exploded perspective view of an LED luminaire according to the present invention;

도 2는 도 1에 따른 조립상태 단면도,2 is a cross-sectional view of the assembled state according to FIG.

도 3은 본 발명에 따른 반사도광판의 일부를 확대시킨 확대단면도,3 is an enlarged cross-sectional view illustrating an enlarged portion of a light guide plate according to the present invention;

도 4는 본 발명에 따른 빛 확산필름의 일부를 확대시킨 확대단면도이다.Figure 4 is an enlarged cross-sectional view of an enlarged portion of the light diffusion film according to the present invention.

* 도면 중 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10 : LED 등기구 20 : 케이싱10: LED light fixture 20: casing

21 : 입력 커넥터 30 : 반사판21: input connector 30: reflector

40 : 회로기판 50 : LED40: circuit board 50: LED

60 : 반사도광판 70 : 빛 확산필름60: reflecting light plate 70: light diffusion film

71 : 돌기71: turning

본 발명은, LED 등기구에 관한 것으로서, 더욱 상세하게는, 전력소비가 적고 수명이 길며 눈의 피로가 발생하지 않는 LED 등기구에 관한 것이다.The present invention relates to an LED luminaire, and more particularly, to an LED luminaire with low power consumption, long life and no eye fatigue.

일반적으로, 널리 사용되는 등은 백열등과 형광등으로 대별할 수 있는데 그 중 하나인 백열등은 보통 텅스텐 합금을 나선형으로 꼬아 필라멘트를 만든다. 그래서 필라멘트에 전기를 통하면 많은 열이 나고 온도가 올라가며 그러면서 빛이 방출되도록 구성되어 있다.In general, widely used lamps can be roughly divided into incandescent lamps and fluorescent lamps, one of which is usually a spiral twist of a tungsten alloy to form a filament. Thus, when the filament is electrically powered, it generates a lot of heat, increases the temperature, and emits light.

그리고 형광등은 상기와 같은 필라멘트 발열에 의한 백열전구에서 한 단계 더 발전한 것이 고전압에서 전기의 방전을 이용한 것이다. 형광등은 진공 유리관에 소량의 수은 증기와 방전을 쉽게 하기위한 아르곤 가스를 넣고 봉한 다음, 양 끝에 전극을 붙인 것으로, 이 전극 사이에 높은 전압을 걸면 방전이 일어나 빛을 발하게 된다. 이때 빛은 자외선으로 이 자외선이 유리관 안쪽의 형광물질과 반응하여 궁극적으로 형광등은 가시광선을 내게 된다.In addition, the fluorescent lamp is further developed from the incandescent lamp by the filament heat generation as described above, and uses electric discharge at high voltage. Fluorescent lamps contain a small amount of mercury vapor and argon gas for easy discharge, and then attach electrodes to both ends. When a high voltage is applied between the electrodes, discharge occurs and radiates light. At this time, the light is ultraviolet rays and the ultraviolet rays react with the fluorescent material inside the glass tube, and ultimately the fluorescent lamp emits visible light.

그런데, 상기와 같은 백열등의 경우 오랜 시간 켜놓으면 전기가 많이 소모되는 단점이 있다. 따라서 오랜 시간동안 켜두어야 하는 건물 등의 실내에서의 사용은 경제성이 없으나, ON/OFF를 빈번하게 반복적으로 자주해야 하는 화장실 같은 장소에는 백열전등을 사용하는 경우가 유리할 수 있다.However, in the case of the incandescent lamp as described above, there is a disadvantage that a lot of electricity is consumed when turned on for a long time. Therefore, it is not economical to use indoors such as buildings that need to be turned on for a long time, but it may be advantageous to use an incandescent lamp in a place such as a toilet where ON / OFF should be frequently repeated frequently.

한편, 형광등은 수명이 다 되면 방전이 제대로 일어나지 않기 때문에 깜박이는 것을 심하게 느낄 수 있다. 형광등이 점등될 때 심하게 깜박이면 글로우 램프가 기능을 상실한 것이고 형광등 가장자리가 검은색으로 변하면서 불빛이 너울거리거나 깜박거리면 형광등 수명이 다한 것이다. 따라서 눈의 피로가 심한 단점이 있다.On the other hand, since the fluorescent lamp is not discharged properly when the end of life can be felt badly flickering. If it flickers badly when it is lit, the glow lamp has lost its function. If the edge of the fluorescent lamp turns black and the light flutters or flickers, the lamp has reached its end of life. Therefore, there is a serious disadvantage of eye fatigue.

또한, 형광등은 형광등 유리표면에 자외선에 의한 가시광선을 차단하는 특이한 성질을 지닌 형광물질을 발라두어서 가시광선의 피해를 줄일 수 있도록 하고 있으나 형광등의 사용기간이 오래되면 형광물질의 단락되어 가시광선으로 인한 눈의 피로가 매우 심한 문제점이 있다.In addition, fluorescent lamps are applied to the glass surface of fluorescent lamps with a characteristic of blocking visible light by ultraviolet rays to reduce the damage of visible light. Eye fatigue is very serious problem.

한편, 최근 들어 조명에 이용되고 있는 LED (LED: Light Emitting Diode 발광 다이오드)는 다이오드의 P-N 접합부에 전계가 가해지면 전류가 흐르면서 발광하는 것으로 이는 전계에 의해서 고체가 발광하는 전계 루비네선스의 일종으로서 그 특징은 점등 또는 소등 속도가 빠르고, 전력 소모가 적고 수명이 길며, 다양한 색상의 발광이 가능하고, 조명용 다른 광원에 비해 눈부심이 작다는 장점을 갖고 있다. 따라서 이와 같은 LED를 이용한 사무실 및 가정용 등 기구의 출현이 시급한 실정이다.On the other hand, LEDs (Light Emitting Diode Light Emitting Diodes), which have recently been used for lighting, emit light when current flows when an electric field is applied to the PN junction of the diode, which is a kind of electric luminescence in which solids emit light by electric fields Its features include fast turn on / off speed, low power consumption, long life, light emission of various colors, and low glare compared to other light sources for lighting. Therefore, the emergence of such office and home appliances using the LED is urgent situation.

따라서 본 발명의 목적은, 수명이 길고 소비전력이 낮아 유지비용이 적으며, 저전압으로 감전사고의 위험도가 낮고 빛을 고르게 확산하여 눈의 피로를 덜 수 있는 LED 등기구를 제공하는 것이다.Accordingly, an object of the present invention is to provide an LED luminaire that has a long lifespan and low power consumption, low maintenance cost, low risk of electric shock at low voltage, and evenly spreads light to reduce eye fatigue.

상기 목적은, 본 발명에 따라, LED 등기구에 있어서, 전면이 개구되며 상부 면에 입력전원 커넥터가 설치된 케이싱과; 전면이 개구된 형상을 갖고 상기 케이싱의 내부에 마련되는 반사판과; 상기 반사판을 이루는 측면 벽 중 적어도 복수 벽 이상에 설치된 회로기판과; 상기 회로기판에서 소정 간격을 두고 다수 개가 직/병열로 설치된 LED와; 상기 케이싱 및 반사판의 개구부에 위치하며 표면의 가로 및 세로방향을 따라 소정 간격을 두고 내측을 향해 함몰된 형상의 반사홈이 형성된 반사도광판과; 상기 반사도광판 위에 부착되며 표면 전체에 미세한 돌기가 형성된 빛 확산필름을 포함하는 것을 특징으로 하는 LED 등 기구에 의해 달성된다.According to the present invention, there is provided an LED luminaire comprising: a casing in which a front surface is opened and an input power connector is installed on an upper surface; A reflection plate having an open shape at the front thereof and provided inside the casing; A circuit board provided on at least a plurality of walls of the side walls of the reflecting plate; A plurality of LEDs installed in series / parallel at predetermined intervals on the circuit board; A reflecting light guide plate disposed in the opening of the casing and the reflecting plate, and having a reflection groove having a shape recessed inwardly at predetermined intervals along the horizontal and vertical directions of the surface; It is achieved by an LED lamp, characterized in that attached to the light guide plate and comprises a light diffusion film formed with a fine projection on the entire surface.

이하에서는 첨부된 도면을 참조하여 본 발명에 대하여 상세히 설명한다. 도 1은 본 발명에 따른 LED 등기구의 분해사시도이며, 도 2는 도 1에 따른 조립상태 단면도이다.Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the present invention. 1 is an exploded perspective view of the LED luminaire according to the present invention, Figure 2 is an assembled cross-sectional view according to FIG.

이들 도면에서 볼 수 있는 바와 같이, 본 발명에 따른 LED 등기구(10)는, 통상의 형광등기구와 같이 케이싱(20)과 반사판(30)을 구비하고 있으며, 상기 반사판의 측면에 설치되는 회로기판(40)과, 상기 회로기판에서 설치되는 다수개의 LED(발광다이오드: 이하에서는 LED라 칭함)(50)와, 상기 케이싱 및 반사판의 개구부에 위치하는 반사도광판(60)과, 상기 반사도광판 위에 부착되는 빛 확산필름(70)을 구비하고 있다.As can be seen from these figures, the LED luminaire 10 according to the present invention has a casing 20 and a reflecting plate 30, like a conventional fluorescent lamp, and is provided with a circuit board provided on the side of the reflecting plate ( 40), a plurality of LEDs (light emitting diodes: hereinafter referred to as LEDs) 50 provided in the circuit board, a reflective light guide plate 60 positioned in an opening of the casing and the reflective plate, and attached to the reflective light guide plate. The light diffusion film 70 is provided.

본 발명에 따른 전면이 개구된 케이싱(20)은, 통상의 형광등에 쓰이는 케이싱과 동일 또는 유사한 구조를 가질 수 있는 한편 그 형상 및 모양을 포함한 디자인은 다양하게 변형될 수 있으며, 상부 면에는 입력전원 커넥터(21)가 설치되어 실내의 천정 등에 매입되거나 또는 돌출되도록 설치되어 메인전원과 연결된다.The front opening casing 20 according to the present invention may have the same or similar structure as the casing used for a conventional fluorescent lamp, the design including the shape and shape can be variously modified, the upper surface of the input power source The connector 21 is installed to be embedded in the ceiling of the room or to protrude to be connected to the main power source.

전면이 개구된 반사판(30) 역시 통상의 형광등에 쓰이는 반사판과 유사한 기능을 갖도록 반사판의 표면은 반사도료가 도포되는 한편 반사판(30) 전체를 빛을 반사할 수 있는 재질의 것을 사용하여 형성된다.The surface of the reflecting plate is formed by using a material that can reflect light to the entire reflecting plate 30 while the reflecting plate is applied so that the reflecting plate 30 having a front surface also has a function similar to that of a conventional fluorescent lamp.

한편, 반사판(30)을 이루는 측면 벽 중 적어도 복수 벽 이상에 설치되는 회로기판(40)은 이하에서 설명될 LED(50)에 전원을 인가하며 컨트롤하는 기능을 수행할 수 있도록 제작되어 있다. 여기서 LED(50)는 일 측벽에 18개 즉 양 측벽에 설치 하면 36개가 설치되는데 이와 같이 다수개가 설치되는 것이 바람직하다.On the other hand, the circuit board 40 installed on at least a plurality of walls of the side wall constituting the reflector 30 is manufactured to perform a function of applying power to the LED 50 to be described below. Here, the LEDs 50 are installed on 18 of one side wall, that is, 36 are installed on both side walls, it is preferable that a plurality is installed.

그리고 상기와 같은 회로기판(40)에는 일측 LED(50)와 소정 간격을 두고 다수 개의 LED(50)가 직/병열로 설치되어 있으며 미설명 부호 80은 전원선이다.In the circuit board 40 as described above, a plurality of LEDs 50 are installed in series / parallel at predetermined intervals with one side LED 50, and reference numeral 80 denotes a power line.

또한, 케이싱(20) 및 반사판(30)의 개구에는 상기 LED에서 발산하는 빛을 일정한 방향으로 안내하여 확산시키는 반사도광판(60)이 설치되는데 이와 같이 빛을 일정한 방향으로 안내하여 확산시키는 것은 표면의 가로 및 세로방향을 따라 소정 간격을 두고 내측을 향해 함몰된 형상으로 형성된 반사홈(61)에 의해 가능하다. 이 때 반사홈은 도 3에서와 같이 빛을 일정한 각도로 조사하는 역할을 할 수 있도록 그 단면 형상이 "U"자 및 "V"자 형상을 취하거나 또는 "

Figure 112006507039521-PAT00005
"형상과 같이 각을 갖는 것이 바람직하다.In addition, the opening of the casing 20 and the reflector 30 is provided with a reflecting light guide 60 for guiding and diffusing the light emitted from the LED in a predetermined direction. It is possible by the reflection groove 61 formed in a shape recessed inwardly at predetermined intervals along the horizontal and vertical directions. At this time, the reflecting grooves take the shape of "U" and "V" or the cross-sectional shape so as to serve to irradiate light at a constant angle as shown in FIG.
Figure 112006507039521-PAT00005
"It is desirable to have an angle like shape.

그리고 본 고안에 따른 상기 반사도광판(60)의 표면에는 빛을 확산하는 빛 확산필름(70)을 도포하는데 상기 빛 확산필름의 표면에는 도 4에서와 같이 눈에 보이지 않는 미세한 돌기(71)가 부여되어 빛을 확산하는 역할을 한다.In addition, a light diffusion film 70 for diffusing light is applied to the surface of the reflective light guide plate 60 according to the present invention. The surface of the light diffusion film is provided with a fine protrusion 71 which is not visible as shown in FIG. 4. To diffuse light.

이와 같이 구성된 본 발명에 따른 LED 등기구(10)는, 조립된 상태에서 실내의 천정 등에 매입되거나 또는 돌출되도록 설치되며 이때 입력전원커넥터(21)에는 메인전원이 인가된다.The LED luminaire 10 according to the present invention configured as described above is installed to be embedded or protruded from the ceiling or the like in an assembled state, and at this time, the main power is applied to the input power connector 21.

사용자에 의해 LED 등기구(10)에 전원이 인가되면 회로기판(40)에서 직/병렬로 설치된 LED(50)는 빛을 1차적으로 반사하게 되며 반사판에 의해 반사되는 빛은 반사도광판(60)에 형성된 반사홈(61)에 의해 일정한 방향으로 안내되어 확산되어 다시 빛 확산필름(70)의 돌기(71)를 통하여 빛을 실내로 확산함으로 실내를 밝게 조명한다.When power is applied to the LED luminaire 10 by the user, the LED 50 installed in series / parallel on the circuit board 40 reflects light primarily, and the light reflected by the reflector is reflected on the light guide plate 60. It is guided in a predetermined direction by the formed reflecting groove 61 and diffused again to brightly illuminate the room by diffusing light into the room through the projections 71 of the light diffusion film 70.

이상에서 본 발명은 기재된 구체예에 대해서만 상세히 설명되었지만 본 발명의 기술사상 범위 내에서 다양한 변형 및 수정이 가능함은 당업자에게 있어서 명백한 것이며, 이러한 변형 및 수정이 첨부된 특허청구범위에 속함은 당연한 것이다.Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, and such modifications and modifications are within the scope of the appended claims.

이상 설명한 바와 같이, 본 발명에 따른 LED 등기구는, 기존의 백열등 및 형광등과 달리 빛을 일정한 방향으로 안내 및 확산시켜 눈의 피로를 덜 수 있는 이점과 아울러 실내를 밝게 조명할 수 있는 이점이 있고, 수명이 길며, 소비전력이 낮아 유지비용이 경제적이고, 저전압으로 감전사고의 위험도가 낮은 효과가 있다.As described above, the LED luminaire according to the present invention, unlike conventional incandescent and fluorescent lamps, has the advantage of guiding and diffusing light in a predetermined direction to reduce eye fatigue and also to brighten the room brightly, Long life, low power consumption, economical maintenance cost, low voltage, low risk of electric shock.

Claims (1)

LED 등 기구에 있어서,In the LED light fixture, 전면이 개구되며 상부 면에 입력전원 커넥터가 설치된 케이싱과;A casing having an open front surface and an input power connector provided on an upper surface thereof; 전면이 개구된 형상을 갖고 상기 케이싱의 내부에 마련되는 반사판과;A reflection plate having an open shape at the front thereof and provided inside the casing; 상기 반사판을 이루는 측면 벽 중 적어도 복수 벽 이상에 설치된 회로기판과;A circuit board provided on at least a plurality of walls of the side walls of the reflecting plate; 상기 회로기판에서 소정 간격을 두고 다수 개가 직/병열로 설치된 LED와;A plurality of LEDs installed in series / parallel at predetermined intervals on the circuit board; 상기 케이싱 및 반사판의 개구부에 위치하며 표면의 가로 및 세로방향을 따라 소정 간격을 두고 내측을 향해 함몰된 형상의 반사홈이 형성된 반사도광판과;A reflecting light guide plate disposed in the opening of the casing and the reflecting plate, and having a reflection groove having a shape recessed inwardly at predetermined intervals along the horizontal and vertical directions of the surface; 상기 반사도광판 위에 부착되며 표면 전체에 미세한 돌기가 형성된 빛 확산필름을 포함하는 것을 특징으로 하는 LED 등 기구.And a light diffusion film attached to the reflective light guide plate and having fine projections formed on the entire surface thereof.
KR1020060085066A 2006-09-05 2006-09-05 Led lighting apparatus KR20080021899A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100930501B1 (en) * 2007-08-27 2009-12-07 (주)섬레이코퍼레이션 Lighting equipment
KR100970301B1 (en) * 2008-06-30 2010-07-15 서울반도체 주식회사 light apparatus
KR101051280B1 (en) * 2009-04-16 2011-07-22 (주)대영오앤이 LED lighting device
KR101052723B1 (en) * 2010-09-20 2011-07-29 김상일 The lighting equipment which uses led
WO2011126300A2 (en) * 2010-04-08 2011-10-13 Yoon Je Soong Light diffusing panel and lighting device using same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100930501B1 (en) * 2007-08-27 2009-12-07 (주)섬레이코퍼레이션 Lighting equipment
KR100970301B1 (en) * 2008-06-30 2010-07-15 서울반도체 주식회사 light apparatus
KR101051280B1 (en) * 2009-04-16 2011-07-22 (주)대영오앤이 LED lighting device
WO2011126300A2 (en) * 2010-04-08 2011-10-13 Yoon Je Soong Light diffusing panel and lighting device using same
WO2011126300A3 (en) * 2010-04-08 2012-01-26 Yoon Je Soong Light diffusing panel and lighting device using same
KR101145844B1 (en) * 2010-04-08 2012-05-17 윤제숭 Illuminating system that use light diffusion panel and this
KR101052723B1 (en) * 2010-09-20 2011-07-29 김상일 The lighting equipment which uses led

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