KR20060036069A - Led floodlight - Google Patents

Led floodlight Download PDF

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Publication number
KR20060036069A
KR20060036069A KR1020060026053A KR20060026053A KR20060036069A KR 20060036069 A KR20060036069 A KR 20060036069A KR 1020060026053 A KR1020060026053 A KR 1020060026053A KR 20060026053 A KR20060026053 A KR 20060026053A KR 20060036069 A KR20060036069 A KR 20060036069A
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South Korea
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led
blue
floodlight
light
blue led
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KR1020060026053A
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Korean (ko)
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추건국
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건국정보통신 주식회사
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Priority to KR1020060026053A priority Critical patent/KR20060036069A/en
Publication of KR20060036069A publication Critical patent/KR20060036069A/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
    • F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • F21K9/275—Details of bases or housings, i.e. the parts between the light-generating element and the end caps; Arrangement of components within bases or housings
    • 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
    • F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
    • 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
    • F21K9/65—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction specially adapted for changing the characteristics or the distribution of the light, e.g. by adjustment of parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • F21V23/005—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate is supporting also the light source
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor 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
    • H01L33/48—Semiconductor 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
    • H01L33/50—Wavelength conversion elements
    • H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
    • H01L33/502—Wavelength conversion materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor 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
    • H01L33/48—Semiconductor 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
    • H01L33/58—Optical field-shaping elements
    • 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]

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

Abstract

본 발명은 투광기 하우징과; 상기 투광기 하우징에 내장되며, 엘이디 구동회로를 포함한 인쇄회로기판과; 상기 인쇄회로기판에 설치된 적어도 하나 이상의 청색 엘이디와; 상기 청색 엘이디와 미리 설정된 거리만큼 이격 설치된 렌즈와; 상기 렌즈의 상면 혹은 하면에 코팅되어 상기 청색 엘디이에서 출력된 청색광을 백색광으로 변환하여 출력하는 포토루미네선스 형광층을 포함함을 특징으로 하는 엘이디 투광기를 제공한다.The present invention is a floodlight housing; A printed circuit board embedded in the floodlight housing and including an LED driving circuit; At least one blue LED mounted on the printed circuit board; A lens spaced apart from the blue LED by a predetermined distance; The LED emitter is coated on an upper surface or a lower surface of the lens and includes a photoluminescence fluorescent layer converting the blue light output from the blue LED into white light.

엘이디 투광기 Led floodlight

Description

엘이디 투광기{LED FLOODLIGHT}LED Floodlights {LED FLOODLIGHT}

도 1은 본 발명의 바람직한 실시예에 따른 엘이디 투광기를 나타낸 내부 구성도. 1 is an internal configuration showing an LED floodlight according to a preferred embodiment of the present invention.

도 2는 본 발명의 응용예에 따른 엘이디 투광기를 나타낸 구성도. Figure 2 is a block diagram showing an LED floodlight according to the application of the present invention.

<도면의 주요 부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

110 : 투광기 하우징 120 : 인쇄회로기판110: floodlight housing 120: printed circuit board

130 : 청색 엘이디 140 : 렌즈130: blue LED 140: lens

150 : 포토루미네선스 형광층150 photoluminescence fluorescent layer

본 발명은 엘이디 투광기에 관한 것으로서, 특히 기존의 청색 엘이디를 이용하여 백색광을 출력할 수 있는 엘이디 투광기에 관한 것이다.The present invention relates to an LED light emitter, and more particularly, to an LED light emitter capable of outputting white light using a conventional blue LED.

통상적으로, 투광기라 함은 옥외 공고물이나 각종 조형물, 건축물 등의 외부로부터 이격 설치되는 광원인 `Flood Light`를 지칭하는 것으로서, 주로 옥외 조명 기구로 사용되나 경우에 따라서는 체육관 등의 넓은 실내장소나 공연무대 등에서 하이라이트로 사용되기도 한다. In general, the floodlight refers to 'Flood Light', which is a light source installed to be spaced apart from the exterior of outdoor announcements, various sculptures, buildings, etc., and is mainly used as an outdoor lighting device, but in some cases, a large indoor place such as a gymnasium. It is also used as a highlight for performances.

상기 투광기는 옥외의 환경, 눈, 비, 강풍, 직사광 또는 먼지, 가스, 수분에 내구성을 발휘하는 구조와 재질로 제작되어야 하고, 투광기는 빛을 멀리 보내거나 넓게 조사하기 위해 특수목적의 빔각을 필요로 할 때 사용되므로 고용량의 램프를 사용한다. 또한, 어떤 장소에 쓰일지 예측이 불가능하므로 커버 유리재료의 내열성 가공이나 기구 몸체의 내열구조로 램프의 수명을 연장시키고 반사판에 의해 빛의 흐름을 제어하고 있다. 설계시 피사면의 크기, 주변여건에 따른 요구조도 산정과 반사율 등을 고려하여 빛의 손실이 적은 알맞은 조명기구를 선정하는 것이 중요하다.The transmitter should be made of a structure and a material that is durable in outdoor environment, snow, rain, strong wind, direct sunlight or dust, gas, and moisture, and the transmitter requires a special purpose beam angle to send light far or wide. Use a high capacity lamp as it is used. In addition, since it is impossible to predict where it will be used, the heat-resistant processing of the cover glass material or the heat-resistant structure of the mechanism body extends the life of the lamp and controls the flow of light by the reflector. In designing, it is important to select a suitable luminaire with low light loss in consideration of the calculation of the required illuminance and reflectance according to the size of the slope and the surrounding conditions.

한편, 종래의 투광기는 광원으로서 여러가지 형태를 사용하고 있으며, 그중의 하나가 백색 엘이디(White LED)이다. 상기 백색 엘이디는 일본 니치아 사에 의해 개발된 엘이디로서, 특수 코팅 처리를 통해 백색광을 출력하는 광원이다. On the other hand, a conventional light emitter uses various forms as a light source, one of which is a white LED (White LED). The white LED is an LED developed by Nichia, Japan, and is a light source that outputs white light through a special coating process.

상기와 같은 문제점을 해결하기 위하여 본 발명의 목적은 백색 엘이디를 사용하지 않고도 백색광을 출력할 수 있는 엘이디 투광기를 제공하는데 있다. An object of the present invention to solve the above problems is to provide an LED floodlight that can output white light without using a white LED.

또한, 본 발명의 다른 목적은 종래의 청색 엘이디를 활용하여 백색광을 출력할 수 있는 엘이디 투광기를 제공하는데 있다. In addition, another object of the present invention is to provide an LED light emitter capable of outputting white light by utilizing a conventional blue LED.

상기와 같은 목적을 달성하기 위하여 본 발명은 투광기 하우징과; 상기 투광 기 하우징에 내장되며, 엘이디 구동회로를 포함한 인쇄회로기판과; 상기 인쇄회로기판에 설치된 적어도 하나 이상의 청색 엘이디와; 상기 청색 엘이디와 미리 설정된 거리만큼 이격 설치된 렌즈와; 상기 렌즈의 상면 혹은 하면에 코팅되어 상기 청색 엘디이에서 출력된 청색광을 백색광으로 변환하여 출력하는 포토루미네선스 형광층을 포함함을 특징으로 하는 엘이디 투광기를 제공한다.In order to achieve the above object, the present invention is a light-transmitter housing; A printed circuit board embedded in the floodlight housing and including an LED driving circuit; At least one blue LED mounted on the printed circuit board; A lens spaced apart from the blue LED by a predetermined distance; The LED emitter is coated on an upper surface or a lower surface of the lens and includes a photoluminescence fluorescent layer converting the blue light output from the blue LED into white light.

이하 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다. 본 발명을 설명함에 있어서, 관련된 공지기능 혹은 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우 그 상세한 설명을 생략한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

도 1은 본 발명의 바람직한 실시예에 따른 엘이디 투광기를 나타낸 내부 구성도이고, 도 2는 본 발명의 응용예에 따른 엘이디 투광기를 나타낸 구성도이다. 1 is an internal configuration showing an LED floodlight according to a preferred embodiment of the present invention, Figure 2 is a configuration diagram showing an LED floodlight according to an application of the present invention.

도 1 및 도 2에 도시된 바와 같이 본 발명의 바람직한 실시예에 따른 엘이디 투광기(100)는 투광기 하우징(110), 인쇄회로기판(120), 청색 엘이디(130), 렌즈(140) 및 포토루미네선스 형광층(150)을 포함한다. 1 and 2, the LED floodlight 100 according to the preferred embodiment of the present invention is a light emitter housing 110, a printed circuit board 120, a blue LED 130, a lens 140 and a photoluminescence It includes the Neon fluorescent layer 150.

(1) 투광기 하우징(Floodlight Housing)(1) Floodlight Housing

상기 투광기 하우징(110)은 인쇄회로기판(120), 청색 엘이디(130) 및 렌즈(140)를 보호하는 외장 부재이다. The floodlight housing 110 is an exterior member that protects the printed circuit board 120, the blue LED 130, and the lens 140.

상기 투광기 하우징(110)은 플라스틱, 금속재 등 다양한 재질로 구성할 수 있다. The floodlight housing 110 may be made of various materials such as plastic and metal.

(2) 인쇄회로기판(Printed Circuit Board)(2) Printed Circuit Board

상기 인쇄회로기판(120)은 투광기 하우징(110)에 내장되며, 청색 엘이디(130)의 점등을 제어하는 엘이디 구동회로를 포함한다. The printed circuit board 120 is embedded in the floodlight housing 110 and includes an LED driving circuit for controlling the lighting of the blue LED 130.

(3) 청색 엘이디(Blue LED)(3) Blue LED

상기 청색 엘이디(130)는 인쇄회로기판(120)에 설치된 적어도 하나 이상의 청색광 발광체이다. The blue LED 130 is at least one blue light emitter installed on the printed circuit board 120.

상기 청색 엘이디(130)는 구동 전압 인가시 청색광을 출력한다. The blue LED 130 outputs blue light when a driving voltage is applied.

상기 청색 엘이디(130)의 설치 개수 및 배열은 도 2에 도시된 바와 같이 평행 2열 방식 등 응용예에 따라 다양하게 변형 가능하다. The number and arrangement of the blue LEDs 130 may be variously modified according to applications such as a parallel two-row system as shown in FIG. 2.

(4) 렌즈(Lens)(4) Lens

상기 렌즈(140)는 청색 엘이디(130)에서 출력된 빛을 발산시키는 투명체이다. The lens 140 is a transparent body that emits light output from the blue LED 130.

상기 렌즈(140)는 청색 엘이디(130)와 미리 설정된 거리(h)만큼 이격 설치된다. 본 발명인 엘이디 투광기(100)는 종래 백색 엘이디와는 달리 상기 렌즈(140)와 청색 엘이디(130)간의 소정 거리(h)가 존재함으로 인해, 다수개의 청색 엘이디 (130)가 설치된다 하더라도 빛의 사각을 제거해주게 됨으로써 단거리부터 장거리까지 일정한 빛감으로 투광할 수 있게 된다. The lens 140 is spaced apart from the blue LED 130 by a predetermined distance h. The LED floodlight 100 of the present invention has a predetermined distance (h) between the lens 140 and the blue LED 130, unlike the conventional white LED, even if a plurality of blue LED 130 is installed, the square of light By removing the light from the short range to long distance can be transmitted with a constant light.

(5) 포토루미네선스 형광층(Photoluminescence Fluorescence Layer)(5) Photoluminescence Fluorescence Layer

상기 포토루미네선스 형광층(150)은 청색 엘디이(130)에서 출력된 청색광을 백색광으로 변환하여 출력하는 형광층이다. The photoluminescence fluorescent layer 150 is a fluorescent layer that converts the blue light output from the blue LED 130 into white light and outputs the white light.

상기 포토루미네선스 형광층(150)은 렌즈(140)의 상면 혹은 하면에 코팅되며, 백색광을 직접 출력하는 엘이디를 사용하지 않고 청색 엘이디를 사용하고도 백색광을 출력할 수 있게 한다. The photoluminescence fluorescent layer 150 is coated on the upper surface or the lower surface of the lens 140, so that the white light can be output even though a blue LED is used without an LED that directly outputs white light.

상기 포토루미네선스 형광층(150)은 InGaN이나 GaN과 같은 질화물계 화합물로 이루어지며, 바람직하게는 이트륨-알루미늄-가넷계 형광물질(Yttrium-Aluminum-Garnet Fluorescent Material, 일명 YAG)로 이루어진다. The photoluminescence fluorescent layer 150 is made of a nitride compound such as InGaN or GaN, and preferably made of yttrium-aluminum-garnet fluorescence material (aka YAG).

상술한 바와 같이 본 발명의 실시예에 따른 엘이디 투광기는 기존의 청색 엘이디를 사용하여 백색광을 출력할 수 있으므로 고가의 백색 엘이디를 사용하지 않고도 백색 엘이디와 같은 백색광 출력을 얻을 수 있는 효과가 있다.As described above, since the LED light emitter according to the embodiment of the present invention can output white light using a conventional blue LED, it is possible to obtain a white light output such as a white LED without using an expensive white LED.

또한, 본 발명의 실시예에 따른 엘이디 투광기는 청색 엘이디와 렌즈간의 거리 조정을 통해 빛의 사각을 없앨 수 있으므로 단거리부터 장거리까지 일정한 빛감을 유지할 수 있는 효과가 있다. In addition, the LED light emitter according to the embodiment of the present invention can eliminate the blind spots by adjusting the distance between the blue LED and the lens has the effect of maintaining a constant light from a short distance to a long distance.

Claims (3)

투광기 하우징과;A light emitter housing; 상기 투광기 하우징에 내장되며, 엘이디 구동회로를 포함한 인쇄회로기판과;A printed circuit board embedded in the floodlight housing and including an LED driving circuit; 상기 인쇄회로기판에 설치된 적어도 하나 이상의 청색 엘이디와;At least one blue LED mounted on the printed circuit board; 상기 청색 엘이디와 미리 설정된 거리만큼 이격 설치된 렌즈와;A lens spaced apart from the blue LED by a predetermined distance; 상기 렌즈의 상면 혹은 하면에 코팅되어 상기 청색 엘디이에서 출력된 청색광을 백색광으로 변환하여 출력하는 포토루미네선스 형광층을 포함함을 특징으로 하는 엘이디 투광기. And a photoluminescence fluorescent layer coated on an upper surface or a lower surface of the lens to convert blue light output from the blue LED into white light and output the white light. 제 1항에 있어서, The method of claim 1, 상기 포토루미네선스 형광층은 질화물계 화합물로 이루어지는 것을 특징으로 하는 엘이디 투광기. LED emitter, characterized in that the photoluminescent fluorescent layer is made of a nitride compound. 제 1항 또는 제 2항에 있어서, The method according to claim 1 or 2, 상기 포토루미네선스 형광층은 이트륨-알루미늄-가넷계 형광물질로 이루어지는 것을 특징으로 하는 엘이디 투광기. The photoluminescence fluorescent layer is an LED floodlight, characterized in that made of yttrium-aluminum-garnet-based fluorescent material.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100919461B1 (en) * 2007-07-09 2009-09-28 심현섭 Luminous source transformed color temperature for a lighting device
WO2009146138A1 (en) * 2008-04-03 2009-12-03 General Led, Inc. Light-emitting diode illumination structures

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100919461B1 (en) * 2007-07-09 2009-09-28 심현섭 Luminous source transformed color temperature for a lighting device
WO2009146138A1 (en) * 2008-04-03 2009-12-03 General Led, Inc. Light-emitting diode illumination structures

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