KR20160058473A - LED lighting apparatus improved color rendering index - Google Patents

LED lighting apparatus improved color rendering index Download PDF

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Publication number
KR20160058473A
KR20160058473A KR1020140159999A KR20140159999A KR20160058473A KR 20160058473 A KR20160058473 A KR 20160058473A KR 1020140159999 A KR1020140159999 A KR 1020140159999A KR 20140159999 A KR20140159999 A KR 20140159999A KR 20160058473 A KR20160058473 A KR 20160058473A
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KR
South Korea
Prior art keywords
phosphor
led lighting
light
converting
fluorescent dye
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KR1020140159999A
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Korean (ko)
Inventor
정상옥
Original Assignee
인스엘이디 주식회사
정상옥
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Priority to KR1020140159999A priority Critical patent/KR20160058473A/en
Publication of KR20160058473A publication Critical patent/KR20160058473A/en

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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
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/05—Optical design plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/02—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for simulating daylight
    • 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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
    • F21V9/32—Elements containing photoluminescent material distinct from or spaced from the light source characterised by the arrangement of the photoluminescent material
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F21Y2105/14—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array
    • 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)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Led Device Packages (AREA)

Abstract

A color LED lighting apparatus according to an embodiment of the present invention includes a translucent plate having an upper phosphor film on a lower surface thereof; A side frame plate joined to at least both ends of the transparent plate; A plurality of LED chips are mounted on the upper surface of the substrate by a silicon optical bench (SiOB) provided at a lower portion of the side frame plate corresponding to the translucent plate, and a lower reflector surrounding the SiOB is stacked on the upper surface One printed circuit board; And a heat sink provided on a lower surface of the printed circuit board; .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color LED lighting apparatus, and more particularly, to a color LED lighting apparatus having a color rendering property similar to sunlight.

Conventional LED lighting apparatuses have a lower color rendering index than other lighting apparatuses. Specifically, the Color Rendering Index is an index indicating how close the measurement light is to natural sunlight when the color rendering index of natural sunlight is set to 100. Generally, incandescent lamps are 100, halogen lamps are 100, general fluorescent lamps are 60 ~ 70, 3 wavelength fluorescent lamps are about 85, and white color LED lamps with high color temperature are about 60 ~ 70. When the color rendering index is low, the color of the actual object is distorted, and the eyes are easily fatigued.

Incandescent lamps and halogen lamps are high in color rendering index, but have low electric efficiency and high power consumption. These incandescent lamps and halogen lamps have a lifetime of about 1000 to 2000 hours, so they must be replaced frequently. Fluorescent lamps are not only relatively low in color rendering index, but also contain environmentally harmful substances such as mercury, which requires caution when disposing. In addition, a fluorescent lamp has a disadvantage that harmful ultraviolet rays are emitted. And the lifetime of the fluorescent lamp is 7000 hours, and frequent replacement is necessary.

On the other hand, LED lighting is a next-generation lighting device, and it is applied to a semiconductor device, which is not environmentally harmful and has a long service life of 50,000 hours. However, there is a disadvantage that the white LED illumination lamp used for illumination has a low color rendering index of 60 to 75.

In particular, when comparing the spectrum of a conventional white LED illumination lamp with that of a standard sunlight, the conventional white LED illumination lamp detects less blue light of 480 nm to 540 nm and less red light of 600 nm or more.

Accordingly, there is a need to improve the low color rendering index of a white LED lamp with a color rendering index of a standard sunlight.

Patent Document: Japanese Patent Application Laid-Open No. 10-0891008

It is an object of the present invention to provide a color LED lighting apparatus for enhancing the color rendering property of a LED lighting apparatus to a color rendering property of a standard sunlight.

A color LED lighting apparatus according to an embodiment of the present invention includes a translucent plate having an upper phosphor film on a lower surface thereof; A side frame plate joined to at least both ends of the transparent plate; A plurality of LED chips are mounted on the upper surface of the substrate by a silicon optical bench (SiOB) provided at a lower portion of the side frame plate corresponding to the translucent plate, and a lower reflector surrounding the SiOB is stacked on the upper surface One printed circuit board; And a heat sink provided on a lower surface of the printed circuit board; .

The color LED lighting apparatus according to an embodiment of the present invention further includes a lower phosphor film covering the lower reflector and surrounding the LED chip.

In the color LED lighting device according to the embodiment of the present invention, the side frame plate is provided with a side reflector and a side fluorescent film sequentially in the inward direction.

In the color LED lighting apparatus according to the embodiment of the present invention, the upper phosphor film includes nanoparticle phosphors or fluorescent dyes for converting into blue light, green light or red light.

The phosphor of the nanoparticle for converting into blue light includes BaMg2Al16O27: Eu2 + , and the phosphor of the nanoparticle for converting into green light is SrGa2S4: Eu2 + or YAG: Eu2 + Ga, includes Ce, the phosphor of the nanoparticles to the red light is converted to CdSe, InP, InGaP, CuInS 2 , (Sr, Ca) AlSiN 3: Eu, CaAlSiN 3: Eu, SrB4O7: Sm 2+, SrS: Eu and YAG: Gd and Ce.

In the color LED lighting apparatus according to the embodiment of the present invention, the fluorescent dye contains any one of chromium oxide (Cr 2 O 3 ), MnO, NiO, MoCl 5 and BiI 3 as a green fluorescent dye, WCl 6 and is characterized in that it contains any one of copper-based oxide (Cu 2 O), iron-based oxide (Fe 2 O 3 ), ZnTe, [Ru (bpy) 3 ] Cl 2 and PdCl 2 as a red fluorescent dye .

In the color LED lighting apparatus according to an embodiment of the present invention, the lower phosphor film includes nanoparticle phosphors or fluorescent dyes for converting into blue light, green light, or red light.

In the color LED lighting apparatus according to the embodiment of the present invention, the SiOB is electrically connected to the LED chip by providing a via in the SiOB.

In the color LED lighting apparatus according to the embodiment of the present invention, the SiOB may have a thickness equal to or higher than the total thickness of the lower reflector and the lower phosphor film.

In the color LED lighting apparatus according to an embodiment of the present invention, the side frame plate may have a disk shape and at least two fins on the outer surface.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to this, terms and words used in the present specification and claims should not be construed in a conventional, dictionary sense, and should not be construed as defining the concept of a term appropriately in order to describe the inventor in his or her best way. It should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

The color LED lighting device according to the embodiment of the present invention has the effect of realizing a lighting device having the color rendering property of sunlight by emitting light including blue-green light or red light.

1 is an exploded perspective view of a color LED lighting apparatus according to a first embodiment of the present invention;
Fig. 2 is a cross-sectional view showing a cross section cut along the line AA in Fig. 1; Fig.
FIG. 3A is an enlarged view of a portion B in FIG. 2; FIG.
Fig. 3B is an enlarged view showing another form of the portion B in Fig. 2; Fig.
4 is an exploded perspective view of a color LED lighting apparatus according to a second embodiment of the present invention;
5 is a cross-sectional view showing a cross section cut along the CC line in Fig. 4;
FIG. 6 is a graph showing a result of detecting the color rendering property of the color LED lighting device according to the first embodiment of the present invention. FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The objects, particular advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements have the same numerical numbers as much as possible even if they are displayed on different drawings. Also, the terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is an exploded perspective view of a color LED lighting apparatus according to a first embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA in FIG. 1, Fig. 3B is an enlarged view showing another form of the portion B in Fig. 2. Fig.

The color LED lighting apparatus 100 according to the first embodiment of the present invention is a rectangular type lighting apparatus comprising a translucent plate 110 having an upper phosphor film 131 on a lower surface thereof, The LED chip 150 is mounted on the lower side of the side frame plate 120 in correspondence with the transparent plate 110 and is interposed between the SiOB 140 and the silicon optical bench 149, A printed circuit board 141 having a lower reflector 143 and a lower phosphor film 133 stacked on the upper surface and mounted on the upper surface of the printed circuit board 141 and surrounding the SiOB 149, And includes a heat sink (160).

Specifically, the translucent plate 110 is a member that transmits light generated from the LED chip 150 or light passing through the phosphor film and protects against external factors. Considering such durability and transparency, the transparent plate 110 may be formed of, for example, polyethylene terephthalate (PET), polycarbonate (PC), polymethylmethacrylate (PMMA), polyethylene naphthalate (PEN) (PES), a cyclic olefin polymer (COC), a TAC (triacetylcellulose) film, a polyvinyl alcohol (PVA) film, a polyimide (PI) film, a polystyrene (PS), a biaxially oriented polystyrene oriented PS, BOPS), glass or tempered glass. In particular, polyethylene terephthalate (PET) may be used for transparency, strength and warpage of the transparent plate 110, and polycarbonate may be used when heat resistance and chemical resistance are required. Of course, the present invention is not limited thereto.

The upper phosphor film 131 provided on the lower surface of the translucent plate 110 is a phosphor film that converts light generated from the LED chip 150 into light having a different wavelength. For example, light emitted from the LED chip 150 May be a plurality of nano-particle phosphors for converting blue light, green light or red light.

Specifically, the fluorescent substance of the nanoparticles, for example BaMg2Al16O27 for blue fluorescence: Eu 2+, SrGa2S4 Green Fluorescent: Eu 2+, CdSe, InP, InGaP for the red phosphor, CuInS 2, (Sr, Ca) AlSiN 3: Eu, CaAlSiN 3: Eu , SrB4O7: Sm 2+ and SrS: Eu of the fluorescent material may comprise a series.

Particularly, the phosphor of the nanoparticle may include a garnet composition phosphor, and may include a YAG: Ga, Ce phosphor for green fluorescence or a YAG: Gd, Ce phosphor for red fluorescence.

Of course, chromium oxide (Cr 2 O 3 ), MnO, NiO, MoCl 5 or BiI 3 can be used as the green fluorescent dye selectively, and as the blue fluorescent dye, for example, WCl 6 (Cu 2 O), iron-based oxide (Fe 2 O 3 ), ZnTe, [Ru (bpy) 3 ] Cl 2 and PdCl 2 can be used as the red fluorescent dye.

The side frame plate 120 may be sealingly joined along the rim of the translucent plate 110 and may include a side reflector 145 and a side fluorescent film 132 sequentially in the inward direction. The side reflector 145 is formed on the inner surface of the base substrate made of any one of stainless steel, brass, aluminum, and polyethylene terephthalate (PET), for example, ) Or titanium (TiO 2 ) as a coating material. Of course, the side reflector 145 may be made of a silver or titanium coating without a base substrate. The side fluorescent film 132 may be formed using the same material as that of the upper fluorescent film 131 described above.

3A, the printed circuit board 141 includes an internal wiring 141-3 and a plurality of SiOB 149 and a lower reflector 143 surrounding the SiOB 149 and surrounding the SiOB 149, And a lower phosphor film 133 surrounding the lower reflector 143 and surrounding the SiOB 149 is stacked. At this time, the internal wiring 141-3 of the printed circuit board 141 is electrically connected to the LED chip 150 via the via 149-2 of the SiOB 149.

Here, the lower phosphor layer 133 may be formed by applying the same material as the material of the upper phosphor layer 131 to a region excluding a plurality of SiOBs 149 through a screen printing method.

The lower reflector 143 is formed in the same manner as the side reflector 145 described above and is made of any one of stainless steel, brass, aluminum, and polyethylene terephthalate (PET), for example. The inner surface of the base substrate may be coated with a coating material of silver or titanium (TiO 2 ) having excellent reflection efficiency, or a coating material of silver or titanium without a base substrate.

At this time, the lower reflector 143 may be formed to have a spacing tolerance (t) of 1 to 4 mm from the SiOB 149 in consideration of the tolerance of the forming process.

The SiOB 149 is a structure for positioning the LED chip 150 higher than the lower reflector 143 and the lower phosphor film 133. The SiOB 149 has a thickness equal to or higher than the total thickness of the lower reflector 143 and the lower phosphor film 133 . Since the LED chip 150 is positioned higher than the lower phosphor film 133 through the SiOB 149, the light emitted from the LED chip 150 is shielded by the lower reflector 143 and the lower phosphor film 133 So that the light conversion efficiency and the light emission efficiency can be improved.

The SiOB 149 is provided to have the same cross section as that of the LED chip 150 or a cross section less than the LED chip 150 to prevent the outgoing light of the LED chip 150 entering the lower reflector 143 from being blocked can do.

As shown in FIG. 3B, the mounted LED chip 150 may further include a lens 155 on the upper portion thereof to diffuse the derived light from the LED chip 150.

The heat sink 160 is provided on the lower surface of the printed circuit board 141 to support the printed circuit board 141 or to discharge the heat transmitted through the printed circuit board 141 to the outside.

In the color LED lighting apparatus 100 according to the first embodiment of the present invention configured as described above, the light generated from the LED chip 150 positioned higher than the lower reflective plate 143 and the lower phosphor film 133 is converted to a phosphor The light can be converted into light including blue-green light or red light through the upper phosphor film 131, the side phosphor film 132, or the lower phosphor film 133 made of a film composed of a plurality of films or fluorescent dyes.

Accordingly, the color LED lighting apparatus 100 according to the first embodiment of the present invention can emit light having a color rendering property of sunlight including blue-green light or red light through the transparent plate 110.

Hereinafter, a color LED lighting apparatus 200 according to a second embodiment of the present invention will be described with reference to FIGS. 4 and 5. FIG. FIG. 4 is an exploded perspective view of a color LED lighting device according to a second embodiment of the present invention, and FIG. 5 is a cross-sectional view taken along line C-C of FIG. The description of the color LED lighting apparatus 200 according to the second embodiment of the present invention will be omitted from the description of the color LED lighting apparatus 100 according to the first embodiment of the present invention.

The color LED lighting apparatus 200 according to the second embodiment of the present invention is a rectangle-shaped lighting apparatus that replaces a fluorescent lamp, and includes a translucent plate 210 having an upper phosphor film 231 on its lower surface, a translucent plate 210 A side frame plate 220 sealingly joined to both ends of the side frame plate 220 and having at least two fins 225 on the outer surface thereof, A printed circuit board 241 having a lower reflector 243 and a lower phosphor film 233 stacked on the upper surface and mounting the LED chip 250 on the upper surface and surrounding the SiOB 249, And a heat sink 260 provided on a lower surface of the heat sink 260. [

The translucent plate 210 is formed by combining light generated from the LED chip 250 and mixed light including blue light or red light converted through the upper fluorescent film 231, the side fluorescent film 232, or the lower fluorescent film 233 But it is not limited to this, and it may be provided in a form having a "C" -shaped shape.

The side frame plate 220 is seal-bonded to both ends of the translucent plate 210 in a circular plate shape and has at least two pins 225 on its outer surface. At this time, the side frame plate 220 can be deformed according to the shape of both side ends of the transparent plate 210, so that if the transparent plate 210 has both sides of an angle, the side frame plate 220 has a polygonal Or in the form of a plate.

The side frame plate 220 is shown to have at least two pins 225 electrically connected to the inner wiring 141-3 on its outer surface. However, the present invention is not limited thereto, and four or more pins 225 may be provided. Can be provided.

The color LED lighting device 200 according to the second embodiment of the present invention is a lighting device that can emit light having a color rendering property of sunlight including blue light or red light by fitting a pin 225 to a fluorescent light terminal Can be implemented.

Hereinafter, the color rendering property using the upper phosphor film 131, the side phosphor film 132, and the lower phosphor film 133 in the color LED lighting apparatus according to the embodiment of the present invention will be described.

Comparative Example

The comparative example is realized by removing the upper phosphor film 131, the side phosphor film 132 and the lower phosphor film 133 from the color LED lighting apparatus 100 shown in FIGS. 1 and 2, JIS Z 8726-1990) using a spectrometer.

Example

In the embodiment, the upper fluorescent film 131, the side fluorescent film 132, and the lower fluorescent film 133 in the color LED lighting device 100 shown in FIGS. 1 and 2 are formed of YAG: Gd, Ce nano And a color rendering index was detected using a spectrometer according to Japanese Industrial Standard (JIS Z 8726-1990).

The color rendering index detection result of each of the comparative example and the example is shown in Fig. 6, the color rendering index result according to the comparative example is shown as "I ", and the color rendering index result according to the embodiment is shown as" II ". As shown in FIG. 6, the color rendering index result according to the embodiment can detect the spectrum of the wavelength including the red light.

Accordingly, in the color LED lighting apparatus according to the embodiment, the upper phosphor layer 131, the side phosphor layer 132, and the lower phosphor layer 133 may be formed of a nanoparticle phosphor for blue or green fluorescence, It can be realized with a film containing a fluorescent dye and can have a color rendering property close to sunlight.

Although the technical idea of the present invention has been specifically described according to the above preferred embodiments, it is to be noted that the above-described embodiments are intended to be illustrative and not restrictive.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention.

100, 200: color rendering LED lighting device 110, 210: translucent plate
120, 220: side frame plates 131, 231: upper phosphor film
132, 232: side fluorescent film 133, 233: lower fluorescent film
141, 241: printed circuit board 141-3: internal wiring
149, 249: SiOB 150, 250: LED chip
155: lens 160, 260: heat sink
225: pin

Claims (14)

A translucent plate provided on the lower surface of the upper phosphor film;
A side frame plate joined to at least both ends of the transparent plate;
A plurality of LED chips are mounted on the upper surface of the substrate by a silicon optical bench (SiOB) provided at a lower portion of the side frame plate corresponding to the translucent plate, and a lower reflector surrounding the SiOB is stacked on the upper surface One printed circuit board; And
A heat sink provided on a lower surface of the printed circuit board;
The LED lighting fixture comprising:
The method according to claim 1,
And a lower phosphor film covering the lower reflector and surrounding the LED chip.
The method according to claim 1,
Wherein the side frame plate comprises a side reflector and a side fluorescent film sequentially in the inward direction.
The method according to claim 1,
Wherein the upper phosphor film comprises a phosphor of a nanoparticle or a fluorescent dye for converting into blue light, green light or red light.
5. The method of claim 4,
The phosphor of the nanoparticle for converting into blue light includes BaMg2Al16O27: Eu2 +
The phosphor of the nanoparticle for converting into green light includes SrGa2S4: Eu2 + or YAG: Ga, Ce,
Phosphor of the nanoparticles to the red light is converted to CdSe, InP, InGaP, CuInS 2 , (Sr, Ca) AlSiN 3: Eu, CaAlSiN 3: Eu, SrB4O7: Sm 2+, SrS: Eu and YAG: Gd, Ce Wherein the LED lighting device comprises a light emitting diode.
5. The method of claim 4,
The fluorescent dye
(Cr 2 O 3 ), MnO, NiO, MoCl 5 and BiI 3 as a green fluorescent dye, WCl 6 as a blue fluorescent dye, and a copper-based oxide (Cu 2 O), iron oxide (Fe 2 O 3), ZnTe , [Ru (bpy) 3] Color rendering the LED lighting fixture comprises one of a Cl 2, and PdCl 2.
3. The method of claim 2,
Wherein the lower phosphor film comprises a phosphor or a fluorescent dye of nanoparticles for converting into blue light, green light or red light.
8. The method of claim 7,
The phosphor of the nanoparticle for converting into blue light includes BaMg2Al16O27: Eu2 +
The phosphor of the nanoparticle for converting into green light includes SrGa2S4: Eu2 + or YAG: Ga, Ce,
Phosphor of the nanoparticles to the red light is converted to CdSe, InP, InGaP, CuInS 2 , (Sr, Ca) AlSiN 3: Eu, CaAlSiN 3: Eu, SrB4O7: Sm 2+, SrS: Eu and YAG: Gd, Ce Wherein the LED lighting device comprises a light emitting diode.
The method of claim 3,
Wherein the side surface phosphor film comprises a phosphor or a fluorescent dye of nanoparticles for converting into blue light, green light or red light.
10. The method of claim 9,
The phosphor of the nanoparticle for converting into blue light includes BaMg2Al16O27: Eu2 +
The phosphor of the nanoparticle for converting into green light includes SrGa2S4: Eu2 + or YAG: Ga, Ce,
Phosphor of the nanoparticles to the red light is converted to CdSe, InP, InGaP, CuInS 2 , (Sr, Ca) AlSiN 3: Eu, CaAlSiN 3: Eu, SrB4O7: Sm 2+, SrS: Eu and YAG: Gd, Ce Wherein the LED lighting device comprises a light emitting diode.
10. The method of claim 9,
The fluorescent dye
(Cr 2 O 3 ), MnO, NiO, MoCl 5 and BiI 3 as a green fluorescent dye, WCl 6 as a blue fluorescent dye, and a copper-based oxide (Cu 2 O), iron oxide (Fe 2 O 3), ZnTe , [Ru (bpy) 3] Color rendering the LED lighting fixture comprises one of a Cl 2, and PdCl 2.
The method according to claim 1,
Wherein the SiOB is electrically connected to the LED chip by providing a via in the SiOB.
3. The method of claim 2,
Wherein the SiOB is equal to or higher than the total thickness of the lower reflector and the lower phosphor film.
The method according to claim 1,
Wherein the side frame plate has a disk shape and at least two fins on an outer surface thereof.
KR1020140159999A 2014-11-17 2014-11-17 LED lighting apparatus improved color rendering index KR20160058473A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180119540A (en) * 2018-10-15 2018-11-02 주식회사 소룩스 Lighting apparatus based on fluorescent printed type PCB substrate
KR101970437B1 (en) * 2018-08-17 2019-04-18 주식회사 소룩스 Led lighting apparatus realizing color temperature and high color rendering of korean industrial standards
KR20200085854A (en) * 2017-11-13 2020-07-15 덴카 주식회사 Lighting device with mounting board for LED lighting

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200085854A (en) * 2017-11-13 2020-07-15 덴카 주식회사 Lighting device with mounting board for LED lighting
JP2020198311A (en) * 2017-11-13 2020-12-10 デンカ株式会社 Lighting device having mounting substrate for led lighting
EP3712495A4 (en) * 2017-11-13 2020-12-16 Denka Company Limited Lighting apparatus having mounting substrate for led lighting
US11482646B2 (en) 2017-11-13 2022-10-25 Denka Company Limited Lighting apparatus having mounting substrate for LED lighting
TWI802609B (en) * 2017-11-13 2023-05-21 日商電化股份有限公司 Illumination device with mounting substrate for LED lighting
KR101970437B1 (en) * 2018-08-17 2019-04-18 주식회사 소룩스 Led lighting apparatus realizing color temperature and high color rendering of korean industrial standards
KR20180119540A (en) * 2018-10-15 2018-11-02 주식회사 소룩스 Lighting apparatus based on fluorescent printed type PCB substrate

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