WO2017039024A1 - Light-emitting diode module having colour mixing and blue-light blocking functions, and lighting apparatus including same - Google Patents

Light-emitting diode module having colour mixing and blue-light blocking functions, and lighting apparatus including same Download PDF

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Publication number
WO2017039024A1
WO2017039024A1 PCT/KR2015/009133 KR2015009133W WO2017039024A1 WO 2017039024 A1 WO2017039024 A1 WO 2017039024A1 KR 2015009133 W KR2015009133 W KR 2015009133W WO 2017039024 A1 WO2017039024 A1 WO 2017039024A1
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light
led
emitting diode
blue
diode module
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PCT/KR2015/009133
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French (fr)
Korean (ko)
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홍영기
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주식회사 쏠컴포넌트
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S10/00—Lighting devices or systems producing a varying lighting effect
    • F21S10/02—Lighting devices or systems producing a varying lighting effect changing colors

Definitions

  • the present invention relates to a light emitting diode module having a color mixing and blue light blocking function and a lighting device including the same. More specifically, by mixing the light emitted from the light emitting diodes of different colors, the color rendering index while having a low color temperature of less than 2550K Relates to a high light emitting diode module and a lighting device including the same.
  • LED lighting device is a color temperature / color rendering / power efficiency of the illumination light is determined by the light emitted from the LED emitting white light.
  • Commonly used LEDs are pure white LEDs that emit light with a color temperature between 5,000K and 8,000K and natural white that emits light with a color temperature between 3,500K and 4,500K.
  • LED and Warm White LED which emits light with color temperature between 2,500K and 3,500K are mainly used.
  • a light emitting diode module including a combination of a plurality of LEDs that is, a red light LED, a white light LED, and a yellow light LED
  • Lighting devices have been developed.
  • color separation occurs in the illumination light region, which causes a problem that the color uniformity of the illumination light falls.
  • a blue phosphor LED has a phosphor to have an x, y color coordinate near a black body curve (also called a black body curve, or Plank Locus) indicated in the CIE1931 x, y color coordinate system.
  • a black body curve also called a black body curve, or Plank Locus
  • the concentration of the phosphor used in the LED it is necessary to sufficiently control the concentration of the phosphor used in the LED to secure as much light as possible in the green and red regions, in which case the power efficiency is higher than 4,000K or more. There was a problem to drop about 30% ⁇ 40%.
  • the present invention is to overcome the above-mentioned conventional problems, the problem to be solved by the present invention by mixing the emission light of the light emitting diodes of different colors, having a low color temperature of 2550K or less, high color rendering index, power efficiency It is to provide an improved light emitting diode module and a lighting device including the same.
  • At least one white light LED for emitting white light
  • At least one red light LED for emitting red light or at least one yellow light LED for emitting yellow light or a combination of the at least one red light LED and at least one yellow light LED
  • a blue light blocking unit which is supported by the support member and transmits blue light in a range of 400 nm to 450 nm emitted from the white light LED to 10% or less, and transmits 90% or more of light in a wavelength range of 520 nm or more
  • a light diffusion unit disposed on the blue light blocking unit to increase diffusion of light emitted from the plurality of LEDs and to mix different illumination light beams, wherein the LED module has color mixing and blue light blocking functions.
  • the red light LED may be an LED having a maximum intensity in a main wavelength band of 610 nm to 670 nm.
  • the yellow light LED may be an LED having a maximum intensity in a main wavelength band of 570 nm to 610 nm.
  • the white light LED is an LED having a color temperature of 2,550 K or more of a black body curve specified in the CIE1931 x, y color space, and the region has (x, y) coordinates of (0.28, 0.30), (0.30, 0.28), (0.34) in the CIE1931 xy color space. , 0.32), (0.44, 0.36), (0.49,0.45), (0.39,0.42), (0.35, 0.40), (0.29, 0.36) It is characterized in that the closed curve region connecting the eight coordinates.
  • the light diffusing unit includes a light diffusing base plate made of a light transmissive transparent resin and a plurality of micro beads spaced apart from each other inside the light diffusing base plate.
  • the light diffusing portion unevenly treats the outermost surface of the light diffusing base plate to form a plurality of irregular protrusions or grooves on the surface.
  • the light diffusing part includes a light diffusing base plate made of a light transmissive transparent resin and a micro lens array formed on an upper surface of the light diffusing base plate.
  • the blue light blocking unit is disposed only on the white light LED through the first supporting member, and the light diffusing unit is disposed on the entire LED through the second supporting member.
  • the housing for providing an accommodation space for receiving a light emitting diode module having a feature according to the embodiment;
  • a driving circuit module for receiving commercial power and converting the driving voltage into a driving voltage for driving the light emitting diode module;
  • a control module for controlling the operation of the light emitting diode module and the driving circuit module.
  • Light emitted from the lighting device is characterized by having a color temperature of less than 2550K.
  • the color rendering index has a high color rendering index of less than 2550K, the power efficiency is improved LED module And it is possible to provide a lighting device including the same.
  • FIG. 1 is a schematic configuration diagram of a light emitting diode module according to the prior art.
  • FIG. 2 is a view showing a spectral curve of sodium lamp according to the prior art.
  • FIG. 3 is a schematic diagram of a light emitting diode module having color mixing and blue light blocking functions according to an embodiment of the present invention.
  • FIG. 4 is a schematic plan view of the light emitting diode module of FIG. 3.
  • FIG. 5 is a diagram illustrating a CIE1931 xy color coordinate and a black body curve.
  • FIG. 6 is a diagram illustrating a white light LED xy coordinate region used in an embodiment of the present invention.
  • Figure 7 is a diagram showing the spectral curve of the red light LED used in one embodiment of the present invention.
  • FIG. 8 is a diagram showing a spectral curve of a yellow light LED used in an embodiment of the present invention.
  • FIG. 9 is a diagram showing a spectral curve of illumination light emitted from a normal white light LED having a color temperature of 5,000K.
  • FIG. 10 is a diagram illustrating a spectral transmission curve of a blue light blocking unit.
  • FIG. 11 is a schematic structural diagram showing an example of a light diffusing portion according to an embodiment of the present invention.
  • FIG. 12 is a schematic configuration diagram showing another example of the light diffusing portion.
  • FIG. 14 is a diagram illustrating a spectral curve of light emitted from an illumination device including a light emitting diode module having color mixing and blue light blocking functions according to an embodiment of the present invention.
  • 15 is a schematic diagram of a light emitting diode module having color mixing and blue light blocking functions according to another embodiment of the present invention.
  • FIG. 3 is a schematic configuration diagram of a light emitting diode module having a color mixing and blue light blocking function according to an embodiment of the present invention
  • FIG. 4 is a schematic plan view of the light emitting diode module of FIG. 3
  • FIG. 5 is a CIE1931 xy color coordinate.
  • FIG. 6 is a diagram showing a white light LED xy coordinate region used in an embodiment of the present invention
  • FIG. 7 is a diagram showing a spectral curve of a red light LED used in an embodiment of the present invention.
  • FIG 8 is a view showing a spectral curve of the yellow light LED used in an embodiment of the present invention
  • Figure 9 is a view showing a spectral curve of the illumination light from a conventional white light LED having a color temperature of 5,000K
  • Figure 10 The figure which shows the spectral transmission curve of a blue light blocking part.
  • a light emitting diode module having color mixing and blue light blocking functions may include a substrate 10, at least one white light LED 100, at least one red light LED 200, at least One or more yellow light LEDs 300, a blue light blocking unit 400, and a light diffusing unit 500 are included.
  • the white light LED 100, the red light LED 200, and the yellow light LED 300 are mounted on the substrate 100 while being spaced apart from each other.
  • Each light emitting diode mounted on the substrate 10 includes a light emitting chip, a lead frame, a wire, a molding part, and a substrate.
  • the lead frame is disposed on the substrate, and the light emitting chip is mounted on the substrate and electrically connected to the lead frame through a wire.
  • the molding part encapsulates the light emitting chip mounted on the substrate to protect the light emitting chip and to adjust the directivity angle of the light emitted from the light emitting chip.
  • the white light LED 100, the red light LED 200, and the yellow light LED 300 are disposed to be spaced apart from each other in a matrix form (see FIG. 4). In the case of Figure 4, it is described as being arranged in a matrix of the 4X4 form, but is not limited thereto. In FIG. 4, 12 white light LEDs, 2 red light LEDs, and 2 yellow light LEDs are disposed, but the number and positions of the LEDs are not limited thereto and may be changed.
  • a combination of one or more white light LEDs 100, one or more red light LEDs 200, and one or more yellow light LEDs 300 is used as a light source.
  • the light source may be configured by a combination of at least one red light LED 200, or may be configured by a combination of at least one white light LED 100 and at least one yellow light LED 300.
  • the blue light blocking unit 400 is supported by the support member and is disposed on the plurality of LEDs.
  • the blue light blocking unit 400 transmits the blue light of the 400 nm to 450 nm section emitted from the white light LED to 10% or less, and transmits 90% or more of the light in the wavelength range of 520 nm or more.
  • the light diffusion unit 500 is disposed above the blue light blocking unit 400 to increase the diffusion of the light emitted from the plurality of LEDs and to mix different illumination light.
  • the white light LED 100 is an LED that emits white light with a color temperature of more than 2,550K. More specifically, the white light LED with a color temperature of 2,550 K or higher of the blackbody curve specified in the CIE1931 x, y color space is defined as the (x, y) coordinates (0.28, 0.30), (0.30, 0.28), (0.34) in the CIE1931 xy color space. , 0.32), (0.44, 0.36), (0.49,0.45), (0.39,0.42), (0.35, 0.40), and (0.29, 0.36) are within the closed curve region connecting eight coordinates (see FIGS. 5 and 6). .
  • the red light LED 200 uses an LED having a maximum intensity in the main wavelength band of 610 nm to 670 nm.
  • FIG. 7 shows a spectral curve of a red light LED having a spectral intensity peak at 630 nm.
  • the yellow light LED 300 uses an LED having a maximum intensity in the main wavelength band of 570 nm to 610 nm. 8 shows the spectral curve of a yellow light LED whose dominant wavelength has a spectral intensity peak at 590 nm.
  • the blue light blocking unit 400 transmits light having a wavelength range of 520 nm or more with about 90% efficiency, and an average transmittance of light between 400 nm and 450 nm is 10% or less.
  • the blue light blocking unit 400 is cured by irradiating UV light at an irradiation amount of 500 to 5000 mJ / cm 2 to a photopolymer composition comprising urethane acrylate oligomer 97 to 99.9 wt% and a photopolymerization initiator 0.2 to 3 wt%.
  • the photopolymerization composition is prepared by heat treatment.
  • Urethane acrylate oligomers contain urethane bonds in the main chain and have 2 to 12 acrylic functional groups.
  • Another manufacturing method of the blue light blocking portion is mixed with a curable resin or a thermoplastic resin which cures the dye or pigment which absorbs light at a short wavelength of 500 nm or less with heat or light, and then forms the mixture into a plate or curved shape.
  • Acetate dyes, anthraquinone dyes and azo dyes are used as dyes for absorbing light at short wavelengths of 500 nm or less, and the pigments include inorganic pigments such as lead chromate, iron oxide oxide, cadmium, titanium, and azo pigments; Phthalocyanine type pigment is used.
  • Acetate dyes, anthraquinone dyes, and azo dyes are used, and as pigments, nitro pigments, azo pigments, and indanthrene pigments are used.
  • the resin that is cured by heat or light is used an acrylate (acrylate) or epoxy (epoxy) resin
  • the thermoplastic resin is a polycarbonate (Polycarbonate)
  • PMMA polymethyl methacrylate
  • FIG. 11 is a schematic structural diagram showing an example of a light diffusing portion according to an embodiment of the present invention.
  • the light diffusion part 510 of the present embodiment is installed on the blue light blocking part 400 and includes a light diffusion base plate 511 and a plurality of micro beads 515.
  • the light diffusion base plate 511 uses a light transmissive transparent resin, and the plurality of micro beads 515 are disposed to be spaced apart from each other in the light diffusion base plate 511.
  • the light passing through the blue light blocking unit 400 is reflected and diffused by the plurality of microbeads to increase the diffusion of the light emitted from the plurality of LEDs to mix different illumination light.
  • FIG. 12 is a schematic configuration diagram showing another example of the light diffusing portion.
  • the light diffusing unit 520 non-uniformly processes the outermost surface of the light diffusing base plate to form a plurality of irregular protrusions or grooves on the surface to increase light diffusion.
  • FIG. 13 is a schematic diagram illustrating another example of the light diffusion unit
  • FIG. 14 illustrates a spectral curve of light emitted from an illumination device including a light emitting diode module having color mixing and blue light blocking functions according to an embodiment of the present invention. The figure shown.
  • the light diffusion part 530 includes a light diffusion base plate 531 and a micro lens array 535.
  • the light diffusion base plate 531 is disposed on the blue light blocking unit 400, and the micro lens array 535 is formed by etching the upper surface of the light diffusion base plate in the form of a lens.
  • a separately formed micro lens array may be attached to the light diffusion base plate.
  • the lighting apparatus including a light emitting diode module having color mixing and blue light blocking functions includes a housing providing an accommodation space for accommodating the light emitting diode module, and a drive for driving the light emitting diode module by receiving commercial power. And a control module for controlling the operation of the driving circuit module, the light emitting diode module, and the driving circuit module for converting and outputting the voltage.
  • 15 is a schematic diagram of a light emitting diode module having color mixing and blue light blocking functions according to another embodiment of the present invention.
  • the light emitting diode module includes a substrate 10, at least one white light LED 100, at least one red light LED 200, at least one yellow light LED 300, and blue light blocking.
  • the unit 450 and the light diffuser 500 are included.
  • the blue light blocking unit 450 is disposed only on the upper portion of the white light LED 100 through the first supporting member, and the light diffusing portion is disposed on the entire LED through the second supporting member.

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

Abstract

The present invention relates to a light-emitting diode module having colour mixing and blue-light blocking functions, and a lighting apparatus including the same. A light-emitting diode module having colour mixing and blue-light blocking functions, and a lighting apparatus including the same are provided, the light-emitting module comprising: one or more white-light LEDs which radiate white-light, and one or more red-light LEDs which radiate red-light, one or more yellow-light LEDs which radiate yellow-light or LEDs which are selected from a combination of one or more red-light LEDs and one or more yellow-light LEDs; a blue-light blocking part which is supported by a support member, which transmits 10% or less of blue-light in the range 400 nm - 450 nm that is emitted by the white-light LEDs, and which transmits 90% or more of light in the wavelength band of 520 nm or more; and a light diffusion part which is arranged in an upper part of the blue-light blocking part, and which augments diffusion of light emitted from a number of LEDs and mixes different illuminating lights.

Description

색혼합 및 청색광 차단 기능을 갖는 발광 다이오드 모듈 및 이를 포함한 조명 장치 LED module having color mixing and blue light blocking function and lighting device including the same
본 발명은 색혼합 및 청색광 차단 기능을 갖는 발광 다이오드 모듈 및 이를 포함한 조명 장치에 관한 것으로, 보다 상세하게는 서로 상이한 색의 발광 다이오드의 출사광을 혼합하여, 2550K 이하의 낮은 색온도를 가지면서 연색지수는 높은 발광 다이오드 모듈 및 이를 포함한 조명 장치에 관한 것이다.The present invention relates to a light emitting diode module having a color mixing and blue light blocking function and a lighting device including the same. More specifically, by mixing the light emitted from the light emitting diodes of different colors, the color rendering index while having a low color temperature of less than 2550K Relates to a high light emitting diode module and a lighting device including the same.
발광 다이오드(Light emitting diode, 이하 LED라 함) 조명장치는 백색광을 방출하는 LED에서 나오는 빛에 의해 조명광의 색온도/연색성/전력효율이 결정된다. 통상적으로 조명에 사용되는 LED는 5,000K 에서 8,000K 사이의 색온도를 가지는 빛을 방출하는 주광색(Pure White) 계열의 LED와 3,500K ~ 4,500K 사이의 색온도를 가지는 빛을 방출하는 주백색 (Natural white) 계열의 LED와 2,500K ~ 3,500K 사이의 색온도를 가지는 빛을 방출하는 온백색 (Warm White) 계열의 LED가 주로 사용된다. Light emitting diode (hereinafter referred to as LED) lighting device is a color temperature / color rendering / power efficiency of the illumination light is determined by the light emitted from the LED emitting white light. Commonly used LEDs are pure white LEDs that emit light with a color temperature between 5,000K and 8,000K and natural white that emits light with a color temperature between 3,500K and 4,500K. ) LED and Warm White LED which emits light with color temperature between 2,500K and 3,500K are mainly used.
한편, 도로나 인도의 가로등의 조명장치로 사용되는 1,800K ~ 2,200K 영역의 색온도를 갖는 나트륨등(Sodium Lamp)의 경우에는 도 2에 도시된 바와 같은 분광 특성에 기인하여 조명관의 색재현율 연색지수가 마이너스값이거나, 20 정도의 낮은 연색지수를 가지므로 색구별을 하기 어려운 문제점이 있었다.Meanwhile, in the case of a sodium lamp having a color temperature in the range of 1,800 K to 2,200 K, which is used as a lighting device of a road or a street lamp of India, the color reproducibility of the light tube is rendered due to the spectral characteristics as shown in FIG. Since the index is negative or has a low color rendering index of about 20, there is a problem that it is difficult to distinguish the color.
이러한 나트륨등을 이용한 가로등 조명장치를 LED를 이용한 조명장치로 대체하기 위하여 도 1에 도시된 바와 같이 복수의 LED 즉, 적색광 LED, 백색광 LED 및 황색광 LED의 조합으로 구성된 발광 다이오드 모듈을 광원으로 이용한 조명장치가 개발된 바 있다. 그러나, 복수개의 LED로 구성된 발광 다이오드 모듈의 경우 조명광 영역에서 색분리 현상이 발생하고, 이로 인하여 조명광의 색균일도가 떨어지게 되는 문제점이 있었다.In order to replace the street lamp lighting apparatus using the sodium lamp with the lighting apparatus using the LED, as shown in FIG. 1, a light emitting diode module including a combination of a plurality of LEDs, that is, a red light LED, a white light LED, and a yellow light LED, is used as a light source. Lighting devices have been developed. However, in the case of a light emitting diode module composed of a plurality of LEDs, color separation occurs in the illumination light region, which causes a problem that the color uniformity of the illumination light falls.
또한, 색온도 2,550K 이하의 LED 조명장치를 구현하기 위하여, CIE1931 x,y 색좌표계에 표시된 흑체곡선(Black Body Curve, 또는 Plank Locus라고도 불림) 부근에서 x,y 색좌표를 갖게하기 위해 청색광 LED에 형광체를 주입하여 청색광을 백색광 영역의 빛으로 변환하여 조명광을 이용하기도 하였다. 그러나, 이 경우 2,550K 이하의 낮은 색온도를 구현하기 위해서는 LED에 사용되는 형광체의 농도를 충분히 조절하여 녹색과 붉은색 영역의 빛을 가급적 많이 확보하여야 하는데, 이 경우 전력효율이 4,000K 이상의 LED 에 비하여 약 30% ~ 40% 정도 떨어지게 문제점이 있었다.In addition, in order to implement an LED lighting device having a color temperature of 2,550K or less, a blue phosphor LED has a phosphor to have an x, y color coordinate near a black body curve (also called a black body curve, or Plank Locus) indicated in the CIE1931 x, y color coordinate system. Was injected to convert the blue light into the light of the white light region to use the illumination light. However, in this case, in order to realize a low color temperature of 2,550K or less, it is necessary to sufficiently control the concentration of the phosphor used in the LED to secure as much light as possible in the green and red regions, in which case the power efficiency is higher than 4,000K or more. There was a problem to drop about 30% ~ 40%.
본 발명은 상술한 종래의 문제점을 극복하기 위한 것으로서, 본 발명이 해결하고자 하는 과제는 서로 상이한 색의 발광 다이오드의 출사광을 혼합하여, 2550K 이하의 낮은 색온도를 가지면서 연색지수는 높으며, 전력 효율이 개선된 발광 다이오드 모듈 및 이를 포함한 조명 장치을 제공하기 위한 것이다.The present invention is to overcome the above-mentioned conventional problems, the problem to be solved by the present invention by mixing the emission light of the light emitting diodes of different colors, having a low color temperature of 2550K or less, high color rendering index, power efficiency It is to provide an improved light emitting diode module and a lighting device including the same.
본 발명의 예시적인 실시예에 따르면, 백색광을 조사하는 적어도 하나 이상의 백색광 LED; 적색광을 조사하는 적어도 하나 이상의 적색광 LED 또는 황색광을 조사하는 적어도 하나 이상의 황색광 LED 또는 상기 적어도 하나 이상의 적색광 LED와 적어도 하나 이상의 황색광 LED 조합 중 선택된 LED; 지지 부재에 지지되며, 상기 백색광 LED에서 출사되는 400nm ~ 450nm 구간의 청색광을 10% 이하로 투과시키며, 520 nm 이상의 파장대의 광을 90% 이상 투과시키는 청색광 차단부; 및 상기 청색광 차단부 상부에 배치되어, 다수의 LED로부터 출사되는 광의 확산을 증대시켜서 서로 다른 조명광을 혼합하는 광 확산부;를 포함하는 것을 특징으로 하는 색혼합 및 청색광 차단 기능을 갖는 발광 다이오드 모듈가 제공된다.According to an exemplary embodiment of the present invention, at least one white light LED for emitting white light; At least one red light LED for emitting red light or at least one yellow light LED for emitting yellow light or a combination of the at least one red light LED and at least one yellow light LED; A blue light blocking unit which is supported by the support member and transmits blue light in a range of 400 nm to 450 nm emitted from the white light LED to 10% or less, and transmits 90% or more of light in a wavelength range of 520 nm or more; And a light diffusion unit disposed on the blue light blocking unit to increase diffusion of light emitted from the plurality of LEDs and to mix different illumination light beams, wherein the LED module has color mixing and blue light blocking functions. do.
상기 적색광 LED는 주파장 대역이 610 nm ~ 670 nm 대역에서 최대 강도(Intensity)를 가지는 LED일 수 있다.The red light LED may be an LED having a maximum intensity in a main wavelength band of 610 nm to 670 nm.
상기 황색광 LED는 주파장 대역이 570 nm ~ 610 nm 대역에서 최대 강도를 가지는 LED일 수 있다.The yellow light LED may be an LED having a maximum intensity in a main wavelength band of 570 nm to 610 nm.
상기 백색광 LED는 CIE1931 x,y 색공간에 지정된 흑체곡선의 색온도 2,550 K 이상의 LED로서, 영역은 CIE1931 xy색공간에서 (x,y)좌표가 (0.28, 0.30), (0.30, 0.28), (0.34,0.32),(0.44, 0.36), (0.49,0.45), (0.39,0.42), (0.35, 0.40), (0.29, 0.36) 8개 좌표를 잇는 폐곡선 영역인 것을 특징으로 한다. The white light LED is an LED having a color temperature of 2,550 K or more of a black body curve specified in the CIE1931 x, y color space, and the region has (x, y) coordinates of (0.28, 0.30), (0.30, 0.28), (0.34) in the CIE1931 xy color space. , 0.32), (0.44, 0.36), (0.49,0.45), (0.39,0.42), (0.35, 0.40), (0.29, 0.36) It is characterized in that the closed curve region connecting the eight coordinates.
상기 광 확산부는 광 투과성 투명수지로 이루어진 광 확산 베이스 플레이트와, 상기 광 확산 베이스 플레이트 내부에 상호 이격되게 배치된 다수의 마이크로 비즈를 포함한다.The light diffusing unit includes a light diffusing base plate made of a light transmissive transparent resin and a plurality of micro beads spaced apart from each other inside the light diffusing base plate.
상기 광 확산부는 광 확산 베이스 플레이트의 최외측 표면을 불균일하게 처리하여 표면에 다수의 불규칙한 돌기나 홈을 형성한다. The light diffusing portion unevenly treats the outermost surface of the light diffusing base plate to form a plurality of irregular protrusions or grooves on the surface.
상기 광 확산부는 광 투과성 투명수지로 이루어진 광 확산 베이스 플레이트와, 상기 광 확산 베이스 플레이트의 상부 표면에 형성된 마이크로 렌즈 어레이;를 포함한다. The light diffusing part includes a light diffusing base plate made of a light transmissive transparent resin and a micro lens array formed on an upper surface of the light diffusing base plate.
상기 청색광 차단부는 제1 지지 부재를 통하여 상기 백색광 LED의 상부에만 배치되며, 상기 광 확산부는 제2 지지 부재를 통하여 전체 LED의 상부에 배치된다. The blue light blocking unit is disposed only on the white light LED through the first supporting member, and the light diffusing unit is disposed on the entire LED through the second supporting member.
본 발명의 다른 측면에 따르면, 본 실시예 따른 특징을 갖는 발광 다이오드 모듈을 수납하기 위한 수납 공간을 제공하는 하우징; 상용 전원을 입력받아 상기 발광 다이오드 모듈을 구동하기 위한 구동 전압으로 변환하여 출력하는 구동회로 모듈; 및 상기 발광 다이오드 모듈 및 구동회로 모듈의 동작을 제어하는 제어 모듈을 포함하는 조명 장치가 제공된다.According to another aspect of the invention, the housing for providing an accommodation space for receiving a light emitting diode module having a feature according to the embodiment; A driving circuit module for receiving commercial power and converting the driving voltage into a driving voltage for driving the light emitting diode module; And a control module for controlling the operation of the light emitting diode module and the driving circuit module.
상기 조명 장치에서 출사되는 광은 2550K 이하의 색온도를 갖는 것을 특징으로 한다.Light emitted from the lighting device is characterized by having a color temperature of less than 2550K.
본 발명에서와 같이, 청색광 차단부와 광 확산부를 구성함으로써, 서로 상이한 색의 발광 다이오드의 출사광을 혼합하여, 2550K 이하의 낮은 색온도를 가지면서 연색지수는 높으며, 전력 효율이 개선된 발광 다이오드 모듈 및 이를 포함한 조명 장치을 제공할 수 있게 된다.As in the present invention, by combining the blue light blocking unit and the light diffusion unit, by mixing the emission light of the light emitting diodes of different colors, the color rendering index has a high color rendering index of less than 2550K, the power efficiency is improved LED module And it is possible to provide a lighting device including the same.
도 1은 종래 기술에 따른 발광 다이오드 모듈의 개략적인 구성도이다.1 is a schematic configuration diagram of a light emitting diode module according to the prior art.
도 2는 종래 기술에 따른 나트륨등의 분광 곡선을 나타낸 도이다.2 is a view showing a spectral curve of sodium lamp according to the prior art.
도 3은 본 발명의 일 실시예에 따른 색혼합 및 청색광 차단 기능을 갖는 발광 다이오드 모듈의 개략적인 구성도이다.3 is a schematic diagram of a light emitting diode module having color mixing and blue light blocking functions according to an embodiment of the present invention.
도 4는 도 3의 발광 다이오드 모듈의 개략적인 평면도이다.4 is a schematic plan view of the light emitting diode module of FIG. 3.
도 5는 CIE1931 xy 색좌표 및 흑체 곡선을 나타낸 도이다.5 is a diagram illustrating a CIE1931 xy color coordinate and a black body curve.
도 6은 본 발명의 일 실시예에 사용된 백색광 LED xy 좌표 영역을 나타낸 도이다.6 is a diagram illustrating a white light LED xy coordinate region used in an embodiment of the present invention.
도 7은 본 발명의 일 실시예 사용된 적색광 LED의 분광 곡선을 나타낸 도이다.Figure 7 is a diagram showing the spectral curve of the red light LED used in one embodiment of the present invention.
도 8은 본 발명의 일 실시예에 사용된 황색광 LED의 분광 곡선을 나타낸 도이다.8 is a diagram showing a spectral curve of a yellow light LED used in an embodiment of the present invention.
도 9는 색온도 5,000K을 가지는 통상의 백색광 LED로부터 나오는 조명광의 분광곡선을 나타낸 도이다.9 is a diagram showing a spectral curve of illumination light emitted from a normal white light LED having a color temperature of 5,000K.
도 10은 청색광 차단부의 분광 투과 곡선을 나타낸 도이다.10 is a diagram illustrating a spectral transmission curve of a blue light blocking unit.
도 11은 본 발명의 일 실시예의 광 확산부의 일 예를 나타낸 개략 구성도이다.11 is a schematic structural diagram showing an example of a light diffusing portion according to an embodiment of the present invention.
도 12는 광 확산부의 다른 예를 나타낸 개략 구성도이다.12 is a schematic configuration diagram showing another example of the light diffusing portion.
도 13은 광 확산부의 또 다른 예를 나타낸 개략 구성도이다.It is a schematic block diagram which shows the another example of the light-diffusion part.
도 14는 본 발명의 일 실시예에 따른 색혼합 및 청색광 차단 기능을 갖는 발광 다이오드 모듈을 포함하는 조명장치에서 출사되는 광의 분광 곡선을 나타낸 도이다.FIG. 14 is a diagram illustrating a spectral curve of light emitted from an illumination device including a light emitting diode module having color mixing and blue light blocking functions according to an embodiment of the present invention.
도 15는 본 발명의 다른 실시예에 따른 색혼합 및 청색광 차단 기능을 갖는 발광 다이오드 모듈의 개략적인 구성도이다.15 is a schematic diagram of a light emitting diode module having color mixing and blue light blocking functions according to another embodiment of the present invention.
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예에 대해 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.
도 3은 본 발명의 일 실시예에 따른 색혼합 및 청색광 차단 기능을 갖는 발광 다이오드 모듈의 개략적인 구성도이며, 도 4는 도 3의 발광 다이오드 모듈의 개략적인 평면도이며, 도 5는 CIE1931 xy 색좌표 및 흑체 곡선을 나타낸 도이고, 도 6은 본 발명의 일 실시예에 사용된 백색광 LED xy 좌표 영역을 나타낸 도이며, 도 7은 본 발명의 일 실시예 사용된 적색광 LED의 분광 곡선을 나타낸 도이고, 도 8은 본 발명의 일 실시예에 사용된 황색광 LED의 분광 곡선을 나타낸 도이며, 도 9는 색온도 5,000K을 가지는 통상의 백색광 LED로부터 나오는 조명광의 분광곡선을 나타낸 도이며, 도 10은 청색광 차단부의 분광 투과 곡선을 나타낸 도이다.3 is a schematic configuration diagram of a light emitting diode module having a color mixing and blue light blocking function according to an embodiment of the present invention, FIG. 4 is a schematic plan view of the light emitting diode module of FIG. 3, and FIG. 5 is a CIE1931 xy color coordinate. And a black body curve, FIG. 6 is a diagram showing a white light LED xy coordinate region used in an embodiment of the present invention, and FIG. 7 is a diagram showing a spectral curve of a red light LED used in an embodiment of the present invention. 8 is a view showing a spectral curve of the yellow light LED used in an embodiment of the present invention, Figure 9 is a view showing a spectral curve of the illumination light from a conventional white light LED having a color temperature of 5,000K, Figure 10 The figure which shows the spectral transmission curve of a blue light blocking part.
도 3 내지 도 10를 참조하면, 본 실시예에 따른 색혼합 및 청색광 차단 기능을 갖는 발광 다이오드 모듈은 기판(10), 적어도 하나 이상의 백색광 LED(100), 적어도 하나 이상의 적색광 LED(200), 적어도 하나 이상의 황색광 LED(300), 청색광 차단부(400) 및 광 확산부(500)를 포함한다.3 to 10, a light emitting diode module having color mixing and blue light blocking functions according to the present embodiment may include a substrate 10, at least one white light LED 100, at least one red light LED 200, at least One or more yellow light LEDs 300, a blue light blocking unit 400, and a light diffusing unit 500 are included.
백색광 LED(100), 적색광 LED(200) 및 황색광 LED(300)는 기판(100) 상에 상호 이격배치된 상태로 실장된다. 기판(10)상에 실장된 각 발광 다이오드는 발광칩, 리드 프레임, 와이어, 몰딩부 및 기판으로 구성된다. 기판 상에 리드 프레임이 배치되며, 발광칩은 기판 상에 실장되며, 와이어를 통하여 리드 프레임과 전기적으로 연결된다. 몰딩부는 기판 상에 실장된 발광칩을 봉지하여, 발광칩을 보호하며, 발광칩에서 방사되는 광의 지향각을 조절한다. The white light LED 100, the red light LED 200, and the yellow light LED 300 are mounted on the substrate 100 while being spaced apart from each other. Each light emitting diode mounted on the substrate 10 includes a light emitting chip, a lead frame, a wire, a molding part, and a substrate. The lead frame is disposed on the substrate, and the light emitting chip is mounted on the substrate and electrically connected to the lead frame through a wire. The molding part encapsulates the light emitting chip mounted on the substrate to protect the light emitting chip and to adjust the directivity angle of the light emitted from the light emitting chip.
백색광 LED(100), 적색광 LED(200) 및 황색광 LED(300)는 매트릭스 형태로 상호 이격되게 배치된다(도 4 참조). 도 4의 경우, 4X4 형태의 매트릭스로 배열되는 것으로 설명하고 있으나, 이에 한정되는 것은 아니다. 도 4에서, 백색광 LED는 12개, 적색광 LED는 2개, 황색광 LED는 2개를 이용하여 배치하고 있으나, 이러한 LED의 개수 및 위치는 이에 한정되는 것은 아니며, 변경 가능하다.The white light LED 100, the red light LED 200, and the yellow light LED 300 are disposed to be spaced apart from each other in a matrix form (see FIG. 4). In the case of Figure 4, it is described as being arranged in a matrix of the 4X4 form, but is not limited thereto. In FIG. 4, 12 white light LEDs, 2 red light LEDs, and 2 yellow light LEDs are disposed, but the number and positions of the LEDs are not limited thereto and may be changed.
본 실시예의 경우, 광원으로 하나 이상의 백색광 LED(100), 하나 이상의 적색광 LED(200) 및 하나 이상의 황색광 LED(300)의 조합을 사용하였으나, 경우에 따라서는 적어도 하나 이상의 백색광 LED(100)와 적어도 하나 이상의 적색광 LED(200)의 조합으로 광원을 구성할 수도 있으며, 적어도 하나 이상의 백색광 LED(100)와 적어도 하나 이상의 황색광 LED(300)의 조합으로 광원을 구성할 수도 있다.In the present embodiment, a combination of one or more white light LEDs 100, one or more red light LEDs 200, and one or more yellow light LEDs 300 is used as a light source. The light source may be configured by a combination of at least one red light LED 200, or may be configured by a combination of at least one white light LED 100 and at least one yellow light LED 300.
청색광 차단부(400)는 지지 부재에 지지되며, 다수의 LED 상부에 배치된다. 청색광 차단부(400)는 백색광 LED에서 출사되는 400nm ~ 450nm 구간의 청색광을 10% 이하로 투과시키도록 하며, 520 nm 이상의 파장대의 광을 90% 이상 투과시키는 기능을 수행한다.The blue light blocking unit 400 is supported by the support member and is disposed on the plurality of LEDs. The blue light blocking unit 400 transmits the blue light of the 400 nm to 450 nm section emitted from the white light LED to 10% or less, and transmits 90% or more of the light in the wavelength range of 520 nm or more.
광 확산부(500)는 청색광 차단부(400) 상부에 배치되어, 다수의 LED로부터 출사되는 광의 확산을 증대시켜서 서로 다른 조명광을 혼합하는 기능을 수행한다.The light diffusion unit 500 is disposed above the blue light blocking unit 400 to increase the diffusion of the light emitted from the plurality of LEDs and to mix different illumination light.
각, 구성요소를 보다 상세히 살펴보면, 백색광 LED(100)는 색온도 2,550K 이상의 백색광을 출사하는 LED이다. 보다 구체적으로는 CIE1931 x,y 색공간에 지정된 흑체곡선의 색온도 2,550 K 이상의 백색광 LED로 영역은 CIE1931 xy색공간에서 (x,y)좌표가 (0.28, 0.30), (0.30, 0.28), (0.34,0.32),(0.44, 0.36), (0.49,0.45), (0.39,0.42), (0.35, 0.40), (0.29, 0.36) 8개 좌표를 잇는 폐곡선 영역 이내이다(도 5, 도 6 참조).Looking at each component in more detail, the white light LED 100 is an LED that emits white light with a color temperature of more than 2,550K. More specifically, the white light LED with a color temperature of 2,550 K or higher of the blackbody curve specified in the CIE1931 x, y color space is defined as the (x, y) coordinates (0.28, 0.30), (0.30, 0.28), (0.34) in the CIE1931 xy color space. , 0.32), (0.44, 0.36), (0.49,0.45), (0.39,0.42), (0.35, 0.40), and (0.29, 0.36) are within the closed curve region connecting eight coordinates (see FIGS. 5 and 6). .
적색광 LED(200)는 주파장 대역이 610 nm ~ 670 nm 대역에서 최대 강도(Intensity)를 가지는 LED를 이용한다. 도 7에는 주파장이 630nm에서 분광강도 피크(Peak)를 가지는 적색광 LED의 분광 곡선이 도시된다.The red light LED 200 uses an LED having a maximum intensity in the main wavelength band of 610 nm to 670 nm. FIG. 7 shows a spectral curve of a red light LED having a spectral intensity peak at 630 nm.
황색광 LED(300)는 주파장 대역이 570 nm ~ 610 nm 대역에서 최대 강도를 가지는 LED를 이용한다. 도 8에는 주파장이 590nm에서 분광강도 피크(Peak)를 가지는 황색광 LED의 분광 곡선이 도시된다.The yellow light LED 300 uses an LED having a maximum intensity in the main wavelength band of 570 nm to 610 nm. 8 shows the spectral curve of a yellow light LED whose dominant wavelength has a spectral intensity peak at 590 nm.
청색광 차단부(400)는 도 10 도시된 바와 같이, 520 nm 이상 파장대의 광은 90% 정도 효율로 투과시키며, 400 nm ~ 450 nm 사이의 광의 평균투과율은 10 % 이하가 된다.As illustrated in FIG. 10, the blue light blocking unit 400 transmits light having a wavelength range of 520 nm or more with about 90% efficiency, and an average transmittance of light between 400 nm and 450 nm is 10% or less.
이러한 청색광 차단부(400)는 우레탄 아크릴레이트 올리고머 97~99.8 중량% 및 광중합 개시제 0.2~3 중량%를 포함하는 광중합 조성물에 자외선을 500~5000 mJ/㎠의 조사량으로 조사하여 경화시킨 후, 경화된 광중합조성물을 열처리하여 제조한다. 우레탄 아크릴레이트 올리고머는 주쇄에 우레탄 결합을 포함하며 2 내지 12개의 아크릴 관능기수를 갖는다. The blue light blocking unit 400 is cured by irradiating UV light at an irradiation amount of 500 to 5000 mJ / cm 2 to a photopolymer composition comprising urethane acrylate oligomer 97 to 99.9 wt% and a photopolymerization initiator 0.2 to 3 wt%. The photopolymerization composition is prepared by heat treatment. Urethane acrylate oligomers contain urethane bonds in the main chain and have 2 to 12 acrylic functional groups.
청색광 차단부의 다른 제조 방법은 500nm 이하의 단파장에서 광을 흡수하는 염료 또는 안료를 열 또는 광으로 경화시키는 경화성 수지나 열가소성 수지에 혼합한 후, 혼합물을 플레이트 또는 곡면 형태로 성형한다. 500nm 이하의 단파장에서 광을 흡수하는 염료로 아세테이트 염료, 안트라퀴논계 염료 및 아조계 염료를 이용하며, 안료는 크롬산납계, 황색산화철계, 카드뮴계, 티타늄계 등의 무기 안료 또는 아조계 안료 및 프탈로시아닌계 안료를 이용한다. 아세테이트 염료, 안트라퀴논계 염료, 아조계 염료를 이용하며, 안료로는 니느로계 안료, 아조계 안료, 인단트렌계 안료를 이용한다. 또한, 열 또는 광으로 경화되는 수지는 아크릴레이트(acrylate) 수지 또는 에폭시(epoxy) 수지를 이용하며, 열가소성 수지로는 폴리카보네이트(Polycarbonate), 폴리메틸메타크릴레이트(PMMA)를 이용한다. Another manufacturing method of the blue light blocking portion is mixed with a curable resin or a thermoplastic resin which cures the dye or pigment which absorbs light at a short wavelength of 500 nm or less with heat or light, and then forms the mixture into a plate or curved shape. Acetate dyes, anthraquinone dyes and azo dyes are used as dyes for absorbing light at short wavelengths of 500 nm or less, and the pigments include inorganic pigments such as lead chromate, iron oxide oxide, cadmium, titanium, and azo pigments; Phthalocyanine type pigment is used. Acetate dyes, anthraquinone dyes, and azo dyes are used, and as pigments, nitro pigments, azo pigments, and indanthrene pigments are used. In addition, the resin that is cured by heat or light is used an acrylate (acrylate) or epoxy (epoxy) resin, the thermoplastic resin is a polycarbonate (Polycarbonate), polymethyl methacrylate (PMMA) is used.
도 11은 본 발명의 일 실시예의 광 확산부의 일 예를 나타낸 개략 구성도이다.11 is a schematic structural diagram showing an example of a light diffusing portion according to an embodiment of the present invention.
도 11을 참조하면, 본 실시예의 광 확산부(510)는 청색광 차단부(400)의 상부에 설치되며, 광 확산 베이스 플레이트(511)와 다수의 마이크로 비즈(micro beads)(515)로 구성된다. 광 확산 베이스 플레이트(511)는 광 투과성 투명 수지를 이용하며, 다수의 마이크로 비즈(515)는 광 확산 베이스 플레이트(511) 내부에 상호 이격되게 배치된다.Referring to FIG. 11, the light diffusion part 510 of the present embodiment is installed on the blue light blocking part 400 and includes a light diffusion base plate 511 and a plurality of micro beads 515. . The light diffusion base plate 511 uses a light transmissive transparent resin, and the plurality of micro beads 515 are disposed to be spaced apart from each other in the light diffusion base plate 511.
청색광 차단부(400)를 통과한 광은 다수의 마이크로 비즈에 의해 반사 및 확산되어 다수의 LED로부터 출사되는 광의 확산을 증대시켜서 서로 다른 조명광을 혼합한다.The light passing through the blue light blocking unit 400 is reflected and diffused by the plurality of microbeads to increase the diffusion of the light emitted from the plurality of LEDs to mix different illumination light.
도 12는 광 확산부의 다른 예를 나타낸 개략 구성도이다.12 is a schematic configuration diagram showing another example of the light diffusing portion.
도 12를 참조하면, 본 실시예에 따른 광 확산부(520)는 광 확산 베이스 플레이트의 최외측 표면을 불균일하게 처리하여 표면에 다수의 불규칙한 돌기나 홈을 형성하여 광의 확산을 증대시킨다.Referring to FIG. 12, the light diffusing unit 520 according to the present exemplary embodiment non-uniformly processes the outermost surface of the light diffusing base plate to form a plurality of irregular protrusions or grooves on the surface to increase light diffusion.
도 13은 광 확산부의 또 다른 예를 나타낸 개략 구성도이며, 도 14는 본 발명의 일 실시예에 따른 색혼합 및 청색광 차단 기능을 갖는 발광 다이오드 모듈을 포함하는 조명장치에서 출사되는 광의 분광 곡선을 나타낸 도이다.FIG. 13 is a schematic diagram illustrating another example of the light diffusion unit, and FIG. 14 illustrates a spectral curve of light emitted from an illumination device including a light emitting diode module having color mixing and blue light blocking functions according to an embodiment of the present invention. The figure shown.
도 13을 참조하면, 본 실시예에 따른 광 확산부(530)는 광 확산 베이스 플레이트(531) 및 마이크로 렌즈 어레이(535)로 구성된다. 광 확산 베이스 플레이트(531)는 청색광 차단부(400) 상에 배치되며, 마이크로 렌즈 어레이(535)는 광 확산 베이스 플레이트의 상부 표면을 렌즈 형태로 식각하여 형성한다. 별도로 형성한 마이크로 렌즈 어레이를 광 확산 베이스 플레이트 상에 부착하여 형성할 수도 있다.Referring to FIG. 13, the light diffusion part 530 according to the present exemplary embodiment includes a light diffusion base plate 531 and a micro lens array 535. The light diffusion base plate 531 is disposed on the blue light blocking unit 400, and the micro lens array 535 is formed by etching the upper surface of the light diffusion base plate in the form of a lens. A separately formed micro lens array may be attached to the light diffusion base plate.
도 14는 본 발명의 일 실시예에 따른 색혼합 및 청색광 차단 기능을 갖는 발광 다이오드 모듈을 포함하는 조명장치에서 출사되는 광의 분광곡선으로서, 색온도 2,070K, 연색지수 (CRI)82 를 갖는다. 본 실시예에 따른 색혼합 및 청색광 차단 기능을 갖는 발광 다이오드 모듈을 포함하는 조명장치는 발광 다이오드 모듈을 수납하기 위한 수납 공간을 제공하는 하우징과, 상용 전원을 입력받아 발광 다이오드 모듈을 구동하기 위한 구동 전압으로 변환하여 출력하는 구동회로 모듈 및 발광 다이오드 모듈 및 구동회로 모듈의 동작을 제어하는 제어 모듈로 구성된다.14 is a spectral curve of light emitted from an illumination device including a light emitting diode module having color mixing and blue light blocking functions according to an embodiment of the present invention, and has a color temperature of 2,070 K and a color rendering index (CRI) 82. The lighting apparatus including a light emitting diode module having color mixing and blue light blocking functions according to the present embodiment includes a housing providing an accommodation space for accommodating the light emitting diode module, and a drive for driving the light emitting diode module by receiving commercial power. And a control module for controlling the operation of the driving circuit module, the light emitting diode module, and the driving circuit module for converting and outputting the voltage.
도 15는 본 발명의 다른 실시예에 따른 색혼합 및 청색광 차단 기능을 갖는 발광 다이오드 모듈의 개략적인 구성도이다.15 is a schematic diagram of a light emitting diode module having color mixing and blue light blocking functions according to another embodiment of the present invention.
도 15를 참조하면, 본 실시예에 따른 발광 다이오드 모듈은 기판(10), 적어도 하나 이상의 백색광 LED(100), 적어도 하나 이상의 적색광 LED(200), 적어도 하나 이상의 황색광 LED(300), 청색광 차단부(450) 및 광 확산부(500)를 포함한다.Referring to FIG. 15, the light emitting diode module according to the present embodiment includes a substrate 10, at least one white light LED 100, at least one red light LED 200, at least one yellow light LED 300, and blue light blocking. The unit 450 and the light diffuser 500 are included.
청색광 차단부(450)는 제1 지지 부재를 통하여 백색광 LED(100)의 상부에만 배치되며, 광 확산부는 제2 지지 부재를 통하여 전체 LED의 상부에 배치된다.The blue light blocking unit 450 is disposed only on the upper portion of the white light LED 100 through the first supporting member, and the light diffusing portion is disposed on the entire LED through the second supporting member.
이상에서 설명한 것은 본 발명에 따른 색혼합 및 청색광 차단 기능을 갖는 발광 다이오드 모듈 및 이를 포함한 조명 장치의 예시적인 실시예에 불과한 것으로서, 본 발명은 상기한 실시예에 한정되지 않고, 이하의 특허청구범위에서 청구하는 바와 같이, 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변경 실시가 가능한 범위까지 본 발명의 기술적 정신이 있다고 할 것이다.What has been described above is only an exemplary embodiment of a light emitting diode module having a color mixing and blue light blocking function and a lighting apparatus including the same according to the present invention, and the present invention is not limited to the above-described embodiment, the following claims As claimed in the present invention, those skilled in the art to which the present invention pertains without departing from the gist of the present invention will have the technical spirit of the present invention to the extent that various modifications can be made.
** 주요 도면 부호의 설명 **** Description of Main References **
100 : 백색광 LED 100: white light LED
200 : 적색광 LED200: red light LED
300 : 황색광 LED300: yellow light LED
400 : 청색광 차단부400: blue light blocking unit
500 : 광 확산부500: light diffuser

Claims (10)

  1. 백색광을 조사하는 적어도 하나 이상의 백색광 LED;At least one white light LED for emitting white light;
    적색광을 조사하는 적어도 하나 이상의 적색광 LED 또는 황색광을 조사하는 적어도 하나 이상의 황색광 LED 또는 상기 적어도 하나 이상의 적색광 LED와 적어도 하나 이상의 황색광 LED 조합 중 선택된 LED;At least one red light LED for emitting red light or at least one yellow light LED for emitting yellow light or a combination of the at least one red light LED and at least one yellow light LED;
    지지 부재에 지지되며, 상기 백색광 LED에서 출사되는 400nm ~ 450nm 구간의 청색광을 10% 이하로 투과시키며, 520 nm 이상의 파장대의 광을 90% 이상 투과시키는 청색광 차단부; 및 A blue light blocking unit which is supported by the support member and transmits blue light in a range of 400 nm to 450 nm emitted from the white light LED to 10% or less, and transmits 90% or more of light in a wavelength range of 520 nm or more; And
    상기 청색광 차단부 상부에 배치되어, 다수의 LED로부터 출사되는 광의 확산을 증대시켜서 서로 다른 조명광을 혼합하는 광 확산부;를 포함하는 것을 특징으로 하는 색혼합 및 청색광 차단 기능을 갖는 발광 다이오드 모듈.The light emitting diode module having a color mixing and blue light blocking function, comprising: a light diffusion unit disposed on the blue light blocking unit, to increase the diffusion of light emitted from the plurality of LEDs to mix different illumination light.
  2. 제1항에 있어서,The method of claim 1,
    상기 적색광 LED는 주파장 대역이 610 nm ~ 670 nm 대역에서 최대 강도(Intensity)를 가지는 LED인 것을 특징으로 하는 색혼합 및 청색광 차단 기능을 갖는 발광 다이오드 모듈.The red light LED is a light emitting diode module having a color mixing and blue light blocking function, characterized in that the LED having a maximum intensity (Intensity) in the main wavelength band of 610 nm ~ 670 nm band.
  3. 제1항에 있어서,The method of claim 1,
    상기 황색광 LED는 주파장 대역이 570 nm ~ 610 nm 대역에서 최대 강도를 가지는 LED인 것을 특징으로 하는 색혼합 및 청색광 차단 기능을 갖는 발광 다이오드 모듈.The yellow light LED is a light emitting diode module having a color mixing and blue light blocking function, characterized in that the dominant wavelength band of the LED having the maximum intensity in the 570 nm ~ 610 nm band.
  4. 제1항에 있어서,The method of claim 1,
    상기 백색광 LED는 CIE1931 x,y 색공간에 지정된 흑체곡선의 색온도 2,550 K 이상의 LED로서, 영역은 CIE1931 xy색공간에서 (x,y)좌표가 (0.28, 0.30), (0.30, 0.28), (0.34,0.32),(0.44, 0.36), (0.49,0.45), (0.39,0.42), (0.35, 0.40), (0.29, 0.36) 8개 좌표를 잇는 폐곡선 영역인 것을 특징으로 하는 색혼합 및 청색광 차단 기능을 갖는 발광 다이오드 모듈.The white light LED is an LED having a color temperature of 2,550 K or more of a black body curve specified in the CIE1931 x, y color space, and the region has (x, y) coordinates of (0.28, 0.30), (0.30, 0.28), (0.34) in the CIE1931 xy color space. , 0.32), (0.44, 0.36), (0.49,0.45), (0.39,0.42), (0.35, 0.40), (0.29, 0.36) Color mixing and blue light blocking, characterized in that the closed curve area connecting eight coordinates Light emitting diode module having a function.
  5. 제1항에 있어서,The method of claim 1,
    상기 광 확산부는,The light diffusion unit,
    광 투과성 투명수지로 이루어진 광 확산 베이스 플레이트와,A light diffusion base plate made of a light transmissive transparent resin,
    상기 광 확산 베이스 플레이트 내부에 상호 이격되게 배치된 다수의 마이크로 비즈;를 포함하는 것을 특징으로 하는 색혼합 및 청색광 차단 기능을 갖는 발광 다이오드 모듈.And a plurality of micro beads disposed spaced apart from each other in the light diffusion base plate.
  6. 제1항에 있어서,The method of claim 1,
    상기 광 확산부는 광 확산 베이스 플레이트의 최외측 표면을 불균일하게 처리하여 표면에 다수의 불규칙한 돌기나 홈을 형성하는 것을 특징으로 하는 색혼합 및 청색광 차단 기능을 갖는 발광 다이오드 모듈.The light diffusing unit has a color mixing and blue light blocking function, characterized in that for processing the outermost surface of the light diffusing base plate non-uniform to form a plurality of irregular projections or grooves on the surface.
  7. 제1항에 있어서,The method of claim 1,
    상기 광 확산부는,The light diffusion unit,
    광 투과성 투명수지로 이루어진 광 확산 베이스 플레이트와,A light diffusion base plate made of a light transmissive transparent resin,
    상기 광 확산 베이스 플레이트의 상부 표면에 형성된 마이크로 렌즈 어레이;를 포함하는 것을 특징으로 하는 색혼합 및 청색광 차단 기능을 갖는 발광 다이오드 모듈.And a microlens array formed on an upper surface of the light diffusing base plate.
  8. 제1항에 있어서,The method of claim 1,
    상기 청색광 차단부는 제1 지지 부재를 통하여 상기 백색광 LED의 상부에만 배치되며, 상기 광 확산부는 제2 지지 부재를 통하여 전체 LED의 상부에 배치되는 것을 특징으로 하는 색혼합 및 청색광 차단 기능을 갖는 발광 다이오드 모듈.The blue light blocking unit is disposed only on the upper portion of the white light LED through the first support member, and the light diffusion unit is disposed on the upper portion of the entire LED through the second support member. module.
  9. 제1항 내지 제8항 중 어느 한 항에 따른 발광 다이오드 모듈;The light emitting diode module according to any one of claims 1 to 8;
    상기 발광 다이오드 모듈을 수납하기 위한 수납 공간을 제공하는 하우징;A housing providing an accommodation space for accommodating the light emitting diode module;
    상용 전원을 입력받아 상기 발광 다이오드 모듈을 구동하기 위한 구동 전압으로 변환하여 출력하는 구동회로 모듈; 및 A driving circuit module for receiving commercial power and converting the driving voltage into a driving voltage for driving the light emitting diode module; And
    상기 발광 다이오드 모듈 및 구동회로 모듈의 동작을 제어하는 제어 모듈;을 포함하는 것을 특징으로 하는 조명 장치.And a control module for controlling the operation of the light emitting diode module and the driving circuit module.
  10. 제9항에 있어서,The method of claim 9,
    상기 조명 장치에서 출사되는 광은 2550K 이하의 색온도를 갖는 것을 특징으로 하는 조명 장치.The light emitted from the lighting device has a color temperature of 2550K or less.
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