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WO2015030276A1 - White light emitting device for lighting using near-ultraviolet rays and fluorescent substance - Google Patents

White light emitting device for lighting using near-ultraviolet rays and fluorescent substance Download PDF

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Publication number
WO2015030276A1
WO2015030276A1 PCT/KR2013/007811 KR2013007811W WO2015030276A1 WO 2015030276 A1 WO2015030276 A1 WO 2015030276A1 KR 2013007811 W KR2013007811 W KR 2013007811W WO 2015030276 A1 WO2015030276 A1 WO 2015030276A1
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light emitting
wavelength
light
red
led
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Korean (ko)
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안종욱
박정환
심재곤
박노준
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details
    • H10H20/85—Packages
    • H10H20/851—Wavelength conversion means
    • H10H20/8511—Wavelength conversion means characterised by their material, e.g. binder
    • H10H20/8512—Wavelength conversion materials
    • H10H20/8513—Wavelength conversion materials having two or more wavelength conversion materials
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Definitions

  • the present invention relates to a white light emitting device using a blue light emitting phosphor, a green light emitting phosphor, a red light emitting phosphor and a yellow light emitting phosphor, and a lighting device using the same.
  • LAMP type LEDs manufactured on a vertical surface in the process as an LED or shell type LED element, a module type lighting device incorporating a plurality of them, a flip chip and a Mouthule type and a lighting device integrating a plurality thereof, and a COB multi-chip type module And it relates to a lighting device comprising the same.
  • a fluorescent material is coated on a surface of a semiconductor light emitting device (LED Chip), and a phosphor powder is contained in a resin constituting the LED light emitting device. Containing the weight%, it is practical to obtain a light emission color other than the original blue light emission color, for example, white light emission.
  • a GaN-based semiconductor light emitting device that emits blue light having a center wavelength of about 460 nm has been generally used.
  • these white LEDs contain a lot of blue light when subjected to spectral analysis, and thus there is room for improvement of optical characteristics such as color stability and color rendering.
  • the present invention can implement a light emission spectrum that was possible only by Halogen Lamp equipped with daylight filter by using near-ultraviolet, red, green, blue phosphor and yellow phosphor, and to provide a white LED having excellent color rendering index and high color stability. It is for.
  • a blue light emitting phosphor that emits blue light by using a semiconductor chip (LED chip) that emits near ultraviolet light and emits blue light, a green light emitting phosphor that emits green light, and a red light emitting red light
  • LED chip semiconductor chip
  • a green light emitting phosphor that emits green light
  • a red light emitting red light Three types of luminescent phosphors are mixed in a predetermined mixing ratio, and a method of obtaining color stability and high color rendering index of white light is inserted into a halogen lamp by inserting a daylight filter (absorbing a red region from yellow light by using a halogen lamp emission wavelength). It provides a method of obtaining a hue approximating sunlight.
  • As a method of realizing the emission spectrum of daylight filter halogen lamp it adds four kinds of phosphors that convert wavelengths into blue, green, red, and yellow regions excited by light emission from semiconductor light emitting devices. And color rendering index.
  • the LED is characterized in that the form selected from the group consisting of SMD form, LAMP form and COB form.
  • the white LED according to the present invention can obtain an excellent color rendering index, and in particular, can implement the spectrum of the existing halogen light source.
  • 3 is an example of spectral analysis of a blue light excited white LED.
  • FIG. 7 is an example of color coordinate analysis of a white LED having a bulb color with a color temperature of 2,200K to 3,400K according to an embodiment of the present invention.
  • 10 is an example of color coordinate analysis of a white LED having a primary white color temperature of 4,500 K according to an embodiment of the present invention.
  • 11 is an example of spectral analysis of a white LED having a primary white color temperature of 4,500 K according to an embodiment of the present invention.
  • 13 is an example of color coordinate analysis of a white LED having a daylight color of 6,500K color temperature according to an embodiment of the present invention.
  • 15 is an example of a color rendering index analysis of a white LED having a daylight color with a color temperature of 6,500 K according to an embodiment of the present invention.
  • the ultraviolet LED element emitting near ultraviolet light three kinds of blue emitting phosphors absorbing near ultraviolet light and emitting blue light, green emitting phosphor emitting green light, and red emitting phosphor emitting red light are mixed in a predetermined blending ratio.
  • wavelength conversion is performed in blue, green, red, and yellow regions excited by light emission from an electric semiconductor light emitting device as a countermeasure to the emission spectrum of daylight filter halogen lamps.
  • Lighting apparatus which realized the method of improving the glossiness when irradiated to an object by adding four kinds of fluorescent substance.

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Led Device Packages (AREA)

Abstract

The purpose of the present invention is to provide a white LED which has an excellent color rendering index and high color stability, and which is capable of implementing a light emitting spectrum that was previously possible only by a halogen lamp equipped with a daylight filter, the white LED using a semiconductor device (LED chip) for illuminating near-ultraviolet rays, a blue light fluorescent substance for absorbing near-ultraviolet rays and illuminating blue light, a green light fluorescent substance for illuminating green light, a red light fluorescent substance for illuminating red light and a yellow light fluorescent substance for illuminating yellow light.

Description

근자외선과 형광체를 이용한 백색 발광 조명용 소자Device for white light emitting illumination using near ultraviolet rays and phosphors

본 발명은 청색 발광 형광체와 녹색 발광 형광체, 적색 발광 형광체 및 황색 발광 형광체를 사용한 백색 발광소자 및 그것을 이용한 조명 장치에 관한 것으로서, 더욱 상세하게는 표면실장형 LED 소자로서 공정상 수평면에 제조되는 SMD형 LED 또는 포탄형 LED 소자로서 공정상 수직면에 제조되는 LAMP형 LED 및 이들을 복수 개 집적한 Module Type 조명장치와, 플립칩 및 이들을 복수 개 집적한 Moudule Type 및 그 조명장치와, COB Multi-Chip Type Module 및 이를 포함하는 조명장치에 관한 것이다.The present invention relates to a white light emitting device using a blue light emitting phosphor, a green light emitting phosphor, a red light emitting phosphor and a yellow light emitting phosphor, and a lighting device using the same. LAMP type LEDs manufactured on a vertical surface in the process as an LED or shell type LED element, a module type lighting device incorporating a plurality of them, a flip chip and a Mouthule type and a lighting device integrating a plurality thereof, and a COB multi-chip type module And it relates to a lighting device comprising the same.

최근 들어 반도체 발광소자를 이용한 LED (Light Emitting Diode) 소자의 조명장치의 실용화 기술로서, 반도체 발광소자 (LED Chip)의 표면에 형광체를 도포하고, LED 발광소자를 구성하는 수지 중에 형광체 분말을 소정의 중량% 함유 시키며, 반도체 발광소자 본래의 청색 발광색 이외의 발광색, 예를 들면 백색 발광을 얻는 것이 실용화되고 있다. 종래의 조명 장치에는 중심파장이 460 nm 부근의 청색을 발광하는 GaN 계 반도체 발광소자를 이용하는 것이 일반적이었다. 그러나 이러한 백색 LED는 스펙트럼 분석을 해보면 청색광을 많이 포함하고 있어서 색 안정성과 연색성 향상 등 광학특성 개선의 여지가 있다. Recently, as a practical technology for the lighting device of an LED (Light Emitting Diode) device using a semiconductor light emitting device, a fluorescent material is coated on a surface of a semiconductor light emitting device (LED Chip), and a phosphor powder is contained in a resin constituting the LED light emitting device. Containing the weight%, it is practical to obtain a light emission color other than the original blue light emission color, for example, white light emission. In the conventional lighting device, a GaN-based semiconductor light emitting device that emits blue light having a center wavelength of about 460 nm has been generally used. However, these white LEDs contain a lot of blue light when subjected to spectral analysis, and thus there is room for improvement of optical characteristics such as color stability and color rendering.

이러한 반도체 발광소자를 이용한 조명 장치에서는, 여기 빛인 청색 발광 파장의 크기가 강하여 조사면에 얼룩이 발생하는 등 색 안정성이 미흡하며 높은 연색지수를 얻기 어렵다고 하는 문제가 발생한다. In such a lighting device using a semiconductor light emitting device, there is a problem that the color stability is insufficient and a high color rendering index is difficult to be obtained, such as the magnitude of the blue light emission wavelength, which is the excitation light, is strong and stains are generated on the irradiation surface.

본 발명은 근 자외선과 적색, 녹색, 청색 형광체 및 황색 형광체를 이용하여, 주광 Filter를 장착한 Halogen Lamp에 의해서만 가능했던 발광 Spectrum을 구현할 수 있으며 우수한 연색지수와 높은 색 안정성을 갖는 백색 LED를 제공하기 위한 것이다. The present invention can implement a light emission spectrum that was possible only by Halogen Lamp equipped with daylight filter by using near-ultraviolet, red, green, blue phosphor and yellow phosphor, and to provide a white LED having excellent color rendering index and high color stability. It is for.

상기 목적을 달성하기 위하여, 근 자외선을 발광하는 반도체소자 (LED Chip)를 이용하고 근자외선을 흡수해 청색 빛을 발광하는 청색 발광 형광체, 녹색 빛을 발광하는 녹색 발광 형광체, 적색 빛을 발광하는 적색 발광 형광체 3 종류를 소정의 배합 비율에 혼합하며, 백색 발광의 색 안정성 및 고연색지수를 얻는 방법을 Halogen lamp에 주광 Filter (Halogen Lamp 발광파장으로 황색빛으로부터 적색 영역을 흡수)를 삽입해 자연광 또는 태양광에 근사하는 색조를 얻을 수 있는 방법을 제공한다. 주광 Filter Halogen Lamp의 발광 Spectrum을 구현하는 방법으로서 반도체 발광소자로부터의 발광으로 여기되는 청색, 녹색, 적색, 황색 영역에 파장변환하는 4종류의 형광체를 부가하는 것으로 물체에 조사되었을 때의 높은 색 안정성과 연색지수를 특징으로 한다. In order to achieve the above object, a blue light emitting phosphor that emits blue light by using a semiconductor chip (LED chip) that emits near ultraviolet light and emits blue light, a green light emitting phosphor that emits green light, and a red light emitting red light Three types of luminescent phosphors are mixed in a predetermined mixing ratio, and a method of obtaining color stability and high color rendering index of white light is inserted into a halogen lamp by inserting a daylight filter (absorbing a red region from yellow light by using a halogen lamp emission wavelength). It provides a method of obtaining a hue approximating sunlight. As a method of realizing the emission spectrum of daylight filter halogen lamp, it adds four kinds of phosphors that convert wavelengths into blue, green, red, and yellow regions excited by light emission from semiconductor light emitting devices. And color rendering index.

본 발명의 일 실시예에서, 상기 LED는 SMD 형태, LAMP 형태 및 COB 형태로 구성된 군으로부터 선택된 형태인 것을 특징으로 한다. In one embodiment of the present invention, the LED is characterized in that the form selected from the group consisting of SMD form, LAMP form and COB form.

본 발명에 따른 백색 LED는 우수한 연색지수를 얻을 수 있으며, 특히 기존 할로겐 광원의 스펙트럼을 구현할 수 있다. The white LED according to the present invention can obtain an excellent color rendering index, and in particular, can implement the spectrum of the existing halogen light source.

도 1은 태양광의 스펙트럼 분석의 예1 is an example of spectral analysis of sunlight

도 2는 기존의 Halogen Lamp에 주광 Filter를 장착한 경우의 발광 스펙트럼 분석의 예2 is an example of emission spectrum analysis when a daylight filter is mounted on a conventional halogen lamp

도 3은 청색광 여기 백색 LED의 스펙트럼 분석의 예3 is an example of spectral analysis of a blue light excited white LED.

도 4는 기존의 Halogen Lamp에 주광 Filter를 장착한 경우의 발광 스펙트럼과 청색광 여기 백색 LED의 스펙트럼의 비교 분석의 예4 is an example of a comparative analysis of the emission spectrum and the spectrum of a blue light excited white LED when a daylight filter is mounted on a conventional halogen lamp;

도 5는 본 발명의 일 실시예에 따른 백색 LED의 색좌표와 색온도, 연색지수 및 광효율의 측정분석의 예5 is an example of measurement analysis of color coordinates and color temperature, color rendering index and light efficiency of a white LED according to an embodiment of the present invention;

도 6은 본 발명의 일 실시예에 따른 백색 LED의 분광분포 분석의 예6 is an example of a spectral distribution analysis of a white LED according to an embodiment of the present invention

도 7은 본 발명의 일 실시예에 따른 색온도 2,200K ~ 3,400K의 전구색을 갖는 백색 LED의 색좌표 분석의 예7 is an example of color coordinate analysis of a white LED having a bulb color with a color temperature of 2,200K to 3,400K according to an embodiment of the present invention.

도 8은 본 발명의 일 실시예에 따른 색온도 2,200K ~ 3,400K의 전구색을 갖는 백색 LED의 스펙트럼 분석의 예8 is an example of spectral analysis of a white LED having a bulb color with a color temperature of 2,200 K to 3,400 K according to an embodiment of the present invention.

도 9는 본 발명의 일 실시예에 따른 색온도 2,200K ~ 3,400K의 전구색을 갖는 백색 LED의 연색지수 분석의 예9 is an example of the color rendering index analysis of the white LED having a light bulb color of the color temperature 2,200K ~ 3,400K according to an embodiment of the present invention

도 10은 본 발명의 일 실시예에 따른 색온도 4,500K의 주백색을 갖는 백색 LED의 색좌표 분석의 예10 is an example of color coordinate analysis of a white LED having a primary white color temperature of 4,500 K according to an embodiment of the present invention.

도 11은 본 발명의 일 실시예에 따른 색온도 4,500K의 주백색을 갖는 백색 LED의 스펙트럼 분석의 예11 is an example of spectral analysis of a white LED having a primary white color temperature of 4,500 K according to an embodiment of the present invention.

도 12는 본 발명의 일 실시예에 따른 색온도 4,500K의 주백색을 갖는 백색 LED의 연색지수 분석의 예12 is an example of the color rendering index analysis of a white LED having a primary white color temperature of 4,500K according to an embodiment of the present invention

도 13은 본 발명의 일 실시예에 따른 색온도 6,500K의 주광색을 갖는 백색 LED의 색좌표 분석의 예13 is an example of color coordinate analysis of a white LED having a daylight color of 6,500K color temperature according to an embodiment of the present invention.

도 14은 본 발명의 일 실시예에 따른 색온도 6,500K의 주광색을 갖는 백색 LED의 스펙트럼 분석의 예14 is an example of spectral analysis of a white LED having a daylight color with a color temperature of 6,500 K according to an embodiment of the present invention.

도 15는 본 발명의 일 실시예에 따른 색온도 6,500K의 주광색을 갖는 백색 LED의 연색지수 분석의 예15 is an example of a color rendering index analysis of a white LED having a daylight color with a color temperature of 6,500 K according to an embodiment of the present invention.

이하, 본 발명의 바람직한 실시예에 대하여 상세히 설명한다. Hereinafter, preferred embodiments of the present invention will be described in detail.

근자외선을 발광하는 자외 LED 소자에서는 근자외광을 흡수해 청색빛을 발광하는 청색 발광 형광체, 녹색빛을 발광하는 녹색 발광 형광체, 적색빛을 발광하는 적색 발광 형광체의 3종류를 소정의 배합 비율에 혼합하고, 백색 발광의 얼룩 및 고연색성을 얻는 방법이 제안 실현화 되었지만, 주광 Filter Halogen Lamp의 발광 Spectrum에 근사하는 대책으로서 전기 반도체 발광소자로부터의 발광으로 여기되는 청, 록, 적, 황색 영역에 파장 변환하는 4종류의 형광체를 부가하는 것으로 물체에 조사되었을 때의 윤기를 개선하는 방법을 실현한 조명 장치.In the ultraviolet LED element emitting near ultraviolet light, three kinds of blue emitting phosphors absorbing near ultraviolet light and emitting blue light, green emitting phosphor emitting green light, and red emitting phosphor emitting red light are mixed in a predetermined blending ratio. Although the method of obtaining white light emission and high color rendering is proposed and realized, wavelength conversion is performed in blue, green, red, and yellow regions excited by light emission from an electric semiconductor light emitting device as a countermeasure to the emission spectrum of daylight filter halogen lamps. Lighting apparatus which realized the method of improving the glossiness when irradiated to an object by adding four kinds of fluorescent substance.

이상과 같이 본 발명은 비록 한정된 실시예에 의해 설명되었으나, 본 발명이 상기의 실시예에 한정되는 것은 아니며, 이는 본 발명이 속하는 분야에서 통상의 지식을 가진 자라면 이러한 기재로부터 다양한 수정 및 변형이 가능하다. 따라서, 본 발명의 사상은 아래에 기재된 특허청구범위에 의해서만 파악되어야 하고, 이와 균등하거나 또는 등가적인 변형 모두는 본 발명 사상의 범주에 속한다 할 것이다. As described above, although the present invention has been described by way of limited embodiments, the present invention is not limited to the above embodiments, and various modifications and variations may be made by those skilled in the art to which the present invention pertains. It is possible. Accordingly, the spirit of the invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications will fall within the scope of the invention.

Claims (8)

Top View SMD 또는 포탄형 LED Lamp의 복합형 LED 소자와 플립칩 형태 또는 COB Multi Chip Type의 표면 실장형 LED를 갖춘 조명용 장치이고, 전기실장 LED는 350 nm ~ 410 nm의 파장 범위의 발광피크를 가지는 반도체 발광소자와 해당 반도체 발광소자로부터의 발광으로 여기되며, 청, 록, 적, 황색 영역에 파장 변환하는 4 종류의 형광체가 Silicone 수지중에 분산된 발광부에서 만나며, 전면측의 발광면으로부터 발광을 발하는 LED 소자부와 COB Multi Chip Type의 표면 실장형 LED는 발광부에 렌즈를 갖춘 Spot Light나 Down Light용의 조명장치.Top View A device for lighting with a complex LED element of SMD or shell type LED lamp and a surface type LED of flip chip type or COB Multi Chip type. An electric mounting LED has a light emitting peak having a wavelength range of 350 nm to 410 nm. Excited by the light emission from the semiconductor light emitting element and the semiconductor light emitting element, four kinds of phosphors having wavelength conversion in the blue, green, red, and yellow regions meet at the light emitting portion dispersed in the silicone resin, and emit light from the light emitting surface on the front side. The LED element part and COB Multi Chip Type surface-mounted LED emit light for spot light or down light with a lens on the light emitting part. 전기 반도체 발광소자로부터의 발광으로 여기되는 청, 록, 적, 황색 영역에 파장 변화하는 4 종류의 형광체는 Halogen 램프에 주광 Filter(Halogen Lamp 발광 파장 중 황색영역에서 적색영역을 흡수)를 삽입함으로써 자연광 또는 태양광에 근사하는 색조를 얻는 방법을 구현한 것으로, 청, 록, 적 형광체에 황색 형광체를 부가하는 것으로 물체에 조사되었을 때 스펙트럼 특성을 향상시키기 위해 청, 록, 적, 황색 4색을 형광체에 소정의 배합비율로 모체 Silicone 수지에 혼합 배합해 LED Chip에 도포시킨 고연색발광소자 및 조명장치.Four kinds of phosphors whose wavelengths are changed in the blue, green, red, and yellow regions excited by the light emitted from the electric semiconductor light emitting element are inserted into the halogen lamp by absorbing a daylight filter (absorbing the red region in the yellow region of the halogen lamp emission wavelength). Alternatively, a method of obtaining a color tone that approximates sunlight can be implemented. By adding a yellow phosphor to a blue, green, or red phosphor, four colors of blue, green, red, and yellow are used to improve spectral characteristics when the object is irradiated. The high color light emitting device and the lighting device which are mixed and mixed with the mother silicone resin at a predetermined mixing ratio and coated on the LED chip. 전기 반도체 발광 LED Chip은, 표면에 요철이 형성된 사파이어 기판상에 GaN 계 결정층 위에 발광층이 형성된 구조를 가지는 것을 특징으로 하는 LED Chip 반도체 발광소자로서 발광파장은 350 nm ~ 410 nm의 파장 범위에 발광 피크를 가지는 반도체 발광소자.The electric semiconductor light emitting LED chip has a structure in which a light emitting layer is formed on a GaN-based crystal layer on a sapphire substrate having irregularities on its surface. The light emitting wavelength of the light emitting wavelength is 350 nm to 410 nm. A semiconductor light emitting device having a peak. 제2항에 있어서, 전기 반도체 소자로부터의 발광으로 여기되고, 청, 록, 적, 황의 영역에 파장 변화하는 4종류의 형광체로서 다음의 형광체를 함유하는 것을 특징으로 하는 고연색발광소자 및 조명장치;The high color light emitting device and illuminating device according to claim 2, wherein the following phosphors are contained as four kinds of phosphors excited by light emission from the electric semiconductor element and changing wavelengths in the blue, green, red, and sulfur regions. ; (1) 350 nm ~ 410 nm의 파장 범위에서 여기가 가능하고, 주 발광 피크의 피크 파장이 450 nm ~ 470 nm인 청색 형광체(1) A blue phosphor capable of excitation in the wavelength range of 350 nm to 410 nm and having a peak wavelength of the main emission peak of 450 nm to 470 nm (2) 350 nm ~ 410 nm의 파장 범위에서 여기가 가능하고, 주 발광 피크의 피크 파장이 510 nm ~ 550 nm인 녹색 형광체(2) Green phosphor capable of excitation in the wavelength range of 350 nm to 410 nm, and the peak wavelength of the main emission peak is 510 nm to 550 nm (3) 350 nm ~ 410 nm의 파장 범위에서 여기가 가능하고, 주 발광 피크의 피크 파장이 630 nm ~ 660 nm인 적색 형광체(3) red phosphors capable of excitation in the wavelength range of 350 nm to 410 nm and having a peak wavelength of the main emission peak of 630 nm to 660 nm (4) 350 nm ~ 410 nm의 파장 범위에서 여기가 가능하고, 주 발광 피크의 피크 파장이 550 nm ~ 590 nm인 황색 형광체(4) Yellow phosphors capable of excitation in the wavelength range of 350 nm to 410 nm and having a peak wavelength of the main emission peak of 550 nm to 590 nm 제1항에 있어서, 상기 조명장치의 발광 스펙트럼의 평균 연색지수 Ra가 60이상인 것을 특징으로 하는 조명장치.The illuminating device according to claim 1, wherein an average color rendering index Ra of the emission spectrum of the illuminating device is 60 or more. 제1항에 있어서, 상기 조명장치의 발광 스펙트럼의 평균 연색지수 Ra가 70이상인 것을 특징으로 하는 조명장치.The illuminating device according to claim 1, wherein an average color rendering index Ra of the emission spectrum of the illuminating device is 70 or more. 제1항에 있어서, 상기 조명장치의 발광 스펙트럼의 평균 연색지수 Ra가 80이상인 것을 특징으로 하는 조명장치.The illuminating device according to claim 1, wherein an average color rendering index Ra of the emission spectrum of the illuminating device is 80 or more. 제1항에 있어서, 상기 조명장치의 발광 스펙트럼의 상관 색온도가 2,000K에서부터 20,000K의 범위에 있는 것을 특징으로 하는 조명장치.The illuminating device according to claim 1, wherein the correlated color temperature of the emission spectrum of said illuminating device is in the range of 2,000K to 20,000K.
PCT/KR2013/007811 2013-08-30 2013-08-30 White light emitting device for lighting using near-ultraviolet rays and fluorescent substance Ceased WO2015030276A1 (en)

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