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KR101191238B1 - Fluorescent fowder with magnetic core, and lighting lamp including the same - Google Patents

Fluorescent fowder with magnetic core, and lighting lamp including the same Download PDF

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KR101191238B1
KR101191238B1 KR1020100035415A KR20100035415A KR101191238B1 KR 101191238 B1 KR101191238 B1 KR 101191238B1 KR 1020100035415 A KR1020100035415 A KR 1020100035415A KR 20100035415 A KR20100035415 A KR 20100035415A KR 101191238 B1 KR101191238 B1 KR 101191238B1
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phosphor
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조재경
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경상대학교산학협력단
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133604—Direct backlight with lamps
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
    • C09K11/7777—Phosphates
    • 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
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
    • C09K11/778—Borates
    • 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
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7783—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals one of which being europium
    • C09K11/7794—Vanadates; Chromates; Molybdates; Tungstates
    • 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
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7783—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals one of which being europium
    • C09K11/7795—Phosphates
    • 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
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7783—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals one of which being europium
    • C09K11/7797—Borates
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/38—Devices for influencing the colour or wavelength of the light
    • H01J61/42—Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence
    • H01J61/44—Devices characterised by the luminescent material
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    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source

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Abstract

본 발명은 조명램프에 사용되는 형광분말에 관한 것이다. 본 발명의 실시 예에 따른 형광분말은 형광체; 및 상기 형광체 주위에 자기장을 형성하기 위한 자기 코어를 포함한다. 본 발명의 실시 예에 따른 형광분말에 의하면, 형광체로부터 가시광선의 방출이 증가하여 조명램프의 휘도를 개선할 수 있다. 즉, 본 발명의 실시 예에 따른 형광분말을 조명램프에 적용하면, 낮은 전력으로 높은 휘도를 얻을 수 있다.The present invention relates to a fluorescent powder used in an illumination lamp. Fluorescent powder according to an embodiment of the present invention is a phosphor; And a magnetic core for forming a magnetic field around the phosphor. According to the fluorescent powder according to the embodiment of the present invention, the emission of visible light from the phosphor is increased to improve the brightness of the lighting lamp. That is, when the fluorescent powder according to the embodiment of the present invention is applied to the illumination lamp, high luminance can be obtained with low power.

Description

자기 코어를 갖는 형광분말 및 그것을 포함하는 조명램프{FLUORESCENT FOWDER WITH MAGNETIC CORE, AND LIGHTING LAMP INCLUDING THE SAME}Fluorescent powder having a magnetic core and an illumination lamp comprising the same {FLUORESCENT FOWDER WITH MAGNETIC CORE, AND LIGHTING LAMP INCLUDING THE SAME}

본 발명은 형광물질에 관한 것으로, 좀 더 구체적으로 조명램프에 사용되는 형광분말에 관한 것이다.The present invention relates to a fluorescent material, and more particularly to a fluorescent powder used in an illumination lamp.

최근 녹색성장에 부응하는 에너지 절감 기술에 대한 수요가 증가함에 따라 발광 효율이 높은 조명램프가 이슈화되고 있다. 이와 관련하여 낮은 전력으로 높은 휘도를 얻을 수 있는 조명램프가 요구되고 있다.Recently, as the demand for energy-saving technology to meet the green growth has increased, lighting lamps with high luminous efficiency have been raised. In this regard, there is a demand for an illumination lamp capable of obtaining high luminance at low power.

형광등은 형광물질(형광체)을 통해 가시광선을 방출하는 조명램프이다. 형광등의 유리관 내벽에 도포되어 있는 형광물질은 자외선과 반응하여 가시광선을 방출한다. 여기서, 자외선은 전극에서 방출되는 열전자가 수은 기체와 충돌하여 방출된다. 따라서, 자외선 및 가시광선의 방출이 증가하면, 형광등의 휘도가 증가한다.Fluorescent lamps are illumination lamps that emit visible light through a fluorescent material (phosphor). Fluorescent material applied to the inner wall of the fluorescent light tube reacts with ultraviolet light to emit visible light. Here, ultraviolet rays are emitted when hot electrons emitted from an electrode collide with mercury gas. Therefore, as the emission of ultraviolet rays and visible light increases, the luminance of the fluorescent lamp increases.

일반적으로, 텅스텐산칼슘(청색), 텅스텐산마그네슘(청백색), 규산아연(녹색), 규산아연베릴륨(황색), 염화인산카드뮴(오렌지색), 규산카드뮴(담홍색) 등과 같은 형광물질이 형광등에 사용된다.Generally, fluorescent materials such as calcium tungstate (blue), magnesium tungstate (blue white), zinc silicate (green), zinc beryllium silicate (yellow), cadmium chloride (orange), cadmium silicate (pink), etc. are used for fluorescent lamps. do.

본 발명의 목적은 자기장을 통해 주위의 전자 밀도를 증가시키기 위한 형광분말을 제공하는 데 있다.It is an object of the present invention to provide a fluorescent powder for increasing the electron density of the surroundings through a magnetic field.

본 발명의 실시 예에 따른 형광분말은 형광체; 및 상기 형광체 주위에 자기장을 형성하기 위한 자기 코어를 포함한다.Fluorescent powder according to an embodiment of the present invention is a phosphor; And a magnetic core for forming a magnetic field around the phosphor.

실시 예에 있어서, 상기 자기 코어는 페라이트 자석 분말을 포함한다. 그리고, 상기 페트라이트 자석 분말은 바륨페라이트(BaFe12O19) 분말인 것을 특징으로 한다.In an embodiment, the magnetic core comprises ferrite magnet powder. In addition, the ferrite magnet powder is characterized in that the barium ferrite (BaFe 12 O 19 ) powder.

실시 예에 있어서, 상기 형광체는 적색 형광체, 녹색 형광체 및 청색 형광체를 포함한다.In an embodiment, the phosphor includes a red phosphor, a green phosphor, and a blue phosphor.

실시 예에 있어서, 상기 자기 코어는 상기 형광체 내부에 포함된 구조인 것을 특징으로 한다.In an embodiment, the magnetic core may be a structure included in the phosphor.

실시 예에 있어서, 상기 형광체는 자외선에 반응하여 가시광선을 방출한다.In an embodiment, the phosphor emits visible light in response to ultraviolet light.

본 발명의 실시 예에 따른 조명램프는 램프관; 및 상기 램프관 내부로 전자들을 방출하기 위한 전극을 포함한다. 그리고, 상기 형광분말은 형광체; 및 상기 형광체 주위에 자기장을 형성하기 위한 자기 코어를 포함한다.Lighting lamp according to an embodiment of the present invention is a lamp tube; And an electrode for emitting electrons into the lamp tube. And, the fluorescent powder is a phosphor; And a magnetic core for forming a magnetic field around the phosphor.

실시 예에 있어서, 상기 램프관은 내부에 수은 증기를 포함한다. 그리고, 상기 전극으로부터 방출되는 전자들은 상기 자기장으로 인해 상기 형광분말 주위에 응집되는 것을 특징으로 한다.In an embodiment, the lamp tube includes mercury vapor therein. The electrons emitted from the electrode are agglomerated around the fluorescent powder due to the magnetic field.

본 발명의 실시 예에 따른 형광분말에 의하면, 형광체로부터 가시광선의 방출이 증가하여 조명램프의 휘도를 개선할 수 있다. 즉, 본 발명의 실시 예에 따른 형광분말을 조명램프에 적용하면, 낮은 전력으로 높은 휘도를 얻을 수 있다.According to the fluorescent powder according to the embodiment of the present invention, the emission of visible light from the phosphor is increased to improve the brightness of the lighting lamp. That is, when the fluorescent powder according to the embodiment of the present invention is applied to the illumination lamp, high luminance can be obtained with low power.

도 1은 본 발명의 실시 예에 따른 형광분말의 모식도이다.
도 2는 본 발명의 실시 예에 따른 형광분말을 포함하는 조명램프를 보여주는 도면이다.1 is a schematic diagram of a fluorescent powder according to an embodiment of the present invention.
2 is a view showing an illumination lamp including a fluorescent powder according to an embodiment of the present invention.

이하, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 본 발명의 기술적 사상을 용이하게 실시할 수 있을 정도로 상세히 설명하기 위하여, 본 발명의 실시 예를 첨부된 도면을 참조하여 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the technical idea of the present invention.

본 발명의 실시 예에 따른 형광분말은 형광체 내부에 자기 코어를 포함한다. 형광체 내부의 자기 코어에 의해 형광체 주변에 자기장이 형성되고, 전극에서 방출되는 열전자는 이러한 자기장의 자기력선에 응집한다. 이는 형광체 주변의 전자 밀도가 증가함을 의미한다. 따라서, 수은 증기와 충돌하는 전자가 증가하여 자외선 및 가시광선의 방출이 증가한다. 결국, 본 발명의 실시 예에 따른 형광분말에 의하면, 이를 사용하는 조명램프의 휘도를 개선할 수 있다.The fluorescent powder according to the embodiment of the present invention includes a magnetic core inside the phosphor. A magnetic field is formed around the phosphor by the magnetic core inside the phosphor, and hot electrons emitted from the electrode aggregate to the magnetic field lines of the magnetic field. This means that the electron density around the phosphor increases. Thus, the electrons colliding with the mercury vapor increase to increase the emission of ultraviolet and visible light. As a result, according to the fluorescent powder according to the embodiment of the present invention, it is possible to improve the brightness of the lighting lamp using the same.

도 1은 본 발명의 실시 예에 따른 형광분말의 모식도이다. 도 1을 참조하면, 본 발명의 실시 예에 따른 형광분말(100)은 형광체(110) 및 자기 코어(120)를 포함한다.1 is a schematic diagram of a fluorescent powder according to an embodiment of the present invention. Referring to FIG. 1, the fluorescent powder 100 according to the embodiment of the present invention includes a phosphor 110 and a magnetic core 120.

형광체(110)는 발광 색깔에 따라 적색 형광체, 녹색 형광체, 청색 형광체 및 백색 형광체로 구분될 수 있다. 여기서, 백색 형광체 대신 적색 형광체, 녹색 형광체 및 청색 형광체가 혼합되어 사용될 수 있다.The phosphor 110 may be classified into a red phosphor, a green phosphor, a blue phosphor, and a white phosphor according to the emission color. Here, a red phosphor, a green phosphor, and a blue phosphor may be mixed and used instead of the white phosphor.

적색 형광체로서 (Y,Gd)BO3:Eu, Y2O3:Eu, Y(P,V)O4:Eu 등이 사용될 수 있다. 녹색 형광체로서 LaPO4:(Ce,Tb), Zn2SiO4:Mn, GdMgB5O10:(Ce,Tb), CeMgAl11O19:Tb 등이 사용될 수 있다. 청색 형광체로서 CaMgSi2O6:Eu, BaMgAl10O17:Eu 등이 사용될 수 있다. 그리고, 백색 형광체로서 Ca10(PO4)6FCl:(Sb,Mn) 등이 사용될 수 있다.As the red phosphor, (Y, Gd) BO 3 : Eu, Y 2 O 3 : Eu, Y (P, V) O 4 : Eu, and the like can be used. As the green phosphor, LaPO 4 : (Ce, Tb), Zn 2 SiO 4 : Mn, GdMgB 5 O 10 : (Ce, Tb), CeMgAl 11 O 19 : Tb and the like may be used. CaMgSi 2 O 6 : Eu, BaMgAl 10 O 17 : Eu, etc. may be used as the blue phosphor. As the white phosphor, Ca 10 (PO 4 ) 6 FCl: (Sb, Mn) or the like may be used.

형광체(110)는 형광원료들을 평량(질량 측정)하여 일정한 배합비로 혼합한 후 가열 및 소성 과정을 통해 제조된다. 예를 들면, 녹색 형광체로서 사용되는 LaPO4:(Ce,Tb)는 주원료로서 La2O3 및 P2O5을 1:1의 비율로 배합하고, 도핑원료로서 수 중량%의 Ce2O3 및 Tb2O3를 첨가하여 볼밀(ball mill) 등에 의해 혼합한 후 전기로에서 가열 및 소성 과정을 통해 제조된다. 여기서, LaPO4:(Ce,Tb)는 LaPO4에 소량의 Ce와 Tb가 도핑됨을 의미한다.The phosphor 110 is manufactured through a heating and firing process after mixing the basis weight (mass measurement) of the fluorescent material in a constant mixing ratio. For example, LaPO 4 : (Ce, Tb), which is used as a green phosphor, mixes La 2 O 3 and P 2 O 5 in a ratio of 1: 1 as a main raw material, and several weight percent of Ce 2 O 3 is used as a doping raw material. And Tb 2 O 3 It is prepared through a heating and firing process in an electric furnace after mixing by a ball mill (ball mill) and the like. Here, LaPO 4 : (Ce, Tb) means that a small amount of Ce and Tb is doped in LaPO 4 .

자기 코어(120)는 형광분말(100) 주변에 자기장을 형성한다. 형광등의 유리관 내부를 가정하면, 전극으로부터 방출되는 열전자(EL)는 자기 코어(120)가 형성하는 자기장으로 인해 로렌츠 힘을 받아 자기력선(ML)에 휘감기는 운동을 하여 형광분말(100) 주변에 응집된다. 이는 형광체(110) 주변의 전자 밀도가 증가함을 의미한다.The magnetic core 120 forms a magnetic field around the fluorescent powder 100. Assuming the inside of the glass tube of the fluorescent lamp, the hot electrons (EL) emitted from the electrode is subjected to Lorentz force due to the magnetic field formed by the magnetic core 120 to be wound around the magnetic force line (ML) to agglomerate around the fluorescent powder 100 do. This means that the electron density around the phosphor 110 increases.

이로 인해, 유리관 내부에 봉입 되어 있는 수은가스 및 아르곤가스와 충돌하는 열전자가 증가하여 자외선의 방출이 증가한다. 그리고, 형광체(110)를 자극하는 자외선의 방출이 증가하면, 형광체(110)로부터 가시광선의 방출이 증가한다. 결국, 가시광선의 방출이 증가함에 따라 형광등의 휘도도 증가할 것이다.As a result, hot electrons colliding with the mercury gas and the argon gas enclosed in the glass tube are increased to increase the emission of ultraviolet rays. In addition, when the emission of ultraviolet rays stimulating the phosphor 110 increases, the emission of visible light from the phosphor 110 increases. As a result, as the emission of visible light increases, the luminance of the fluorescent lamp will increase.

자기 코어(120)로서 바륨페라이트(BaFe12O19) 등과 같은 페라이트 자석, 알니코 자석, 희토류 자석(Nd 자석, Sm 자석) 등이 사용될 수 있다. 자기 코어(120)는 자석원료들을 평량(질량 측정)하여 일정한 배합비로 혼합한 후 가열 및 소성 과정을 통해 제조된다. 예를 들면, 바륨페라이트(BaFe12O19)는 BaCO3 및 Fe2O3을 1:1의 비율로 배합하여 볼밀 등에 의해 혼합한 후 전기로에서 가열 및 소성 과정을 통해 제조된다.As the magnetic core 120, a ferrite magnet such as barium ferrite (BaFe 12 O 19 ), an alnico magnet, a rare earth magnet (Nd magnet, Sm magnet), or the like may be used. The magnetic core 120 is manufactured through a heating and baking process after mixing the basis weight (mass measurement) of the magnetic raw materials in a constant mixing ratio. For example, barium ferrite (BaFe 12 O 19 ) is a mixture of BaCO 3 and Fe 2 O 3 in a ratio of 1: 1 is mixed by a ball mill and the like is produced by heating and baking in an electric furnace.

형광분말(100)은 형광체(110)로서 사용되는 분말과 자기 코어(120)로서 사용되는 분말을 일정한 부피 비로 혼합한 후 가열 및 소성 과정을 통해 제조될 수 있다. 예를 들면, 형광분말(100)은 형광체(110)로서 사용되는 분말 및 자기 코어(120)로서 사용되는 분말을 10:1의 부피 비로 혼합될 수 있다. 그리고, 가열 및 소성 과정을 통해 형광체(110)로서 사용되는 분말이 자기 코어(120)로서 사용되는 분말의 경계면과 반응한다. 이로 인해, 형광체(110)가 자기 코어(120)에 코팅된 구조의 형광분말(100)을 얻어낼 수 있다.The fluorescent powder 100 may be prepared by mixing the powder used as the phosphor 110 and the powder used as the magnetic core 120 in a constant volume ratio and then heating and firing. For example, the fluorescent powder 100 may be mixed with the powder used as the phosphor 110 and the powder used as the magnetic core 120 in a volume ratio of 10: 1. Then, the powder used as the phosphor 110 reacts with the interface of the powder used as the magnetic core 120 through the heating and firing process. Thus, the fluorescent powder 100 having the structure in which the phosphor 110 is coated on the magnetic core 120 may be obtained.

본 발명에 따른 형광체(110) 내부에 자기 코어(120)를 갖는 형광분말(100)은 형광등과 같은 조명램프에 사용될 수 있다. The fluorescent powder 100 having the magnetic core 120 inside the phosphor 110 according to the present invention may be used in an illumination lamp such as a fluorescent lamp.

도 2는 본 발명의 실시 예에 따른 형광분말을 포함하는 조명램프를 보여주는 도면이다.2 is a view showing an illumination lamp including a fluorescent powder according to an embodiment of the present invention.

도 2에 도시된 바와 같이, 조명램프(1)는 딥핑법에 의해 형광층(12)이 형성된 진공 유리관으로 이루어지는 램프관(10)과, 전원(30)에 전기적으로 연결되며 램프관(10) 내부로 전자들을 방출하기 위한 전자방출부재(22)를 갖는 전극(20)을 포함한다. As shown in FIG. 2, the illumination lamp 1 is a lamp tube 10 made of a vacuum glass tube in which a fluorescent layer 12 is formed by a dipping method, and is electrically connected to a power source 30. And an electrode 20 having an electron-emitting member 22 for emitting electrons therein.

램프관(10) 내부에는 수은(Hg) 및 비활성 기체(예컨대 아르곤 가스) 증기를 포함하는 방전 기체(14)가 충전되며, 램프관(10)의 형광층(12)은 형광분말(100)을 바인더 용액 및 솔벤트와 혼합하여 만들어진 형광분말 슬러리를 램프관(10)으로 사용되는 유리관 내부에 코팅한 후 가열 건조하여 방식으로 형성된다. 여기서, 바인더 용액은 수용성 바인더 용액 또는 니트로셀룰로오스와 같은 유기 바인더 용액일 수 있다. The lamp tube 10 is filled with a discharge gas 14 including mercury (Hg) and an inert gas (eg, argon gas) vapor, and the fluorescent layer 12 of the lamp tube 10 receives the fluorescent powder 100. The fluorescent powder slurry made by mixing with the binder solution and the solvent is coated in the glass tube used as the lamp tube 10, and then heated and dried to form a slurry. Here, the binder solution may be an aqueous binder solution or an organic binder solution such as nitrocellulose.

전원(30)으로부터 교류가 전극(20)에 인가되면 전극(20)의 전자방출부재(22)로부터 전자 입자가 방출되어 내부의 수은 및 아르곤 가스와 충돌하여 자외선이 방출되고 이 자외선이 형광층(12)의 형광분말(100)과 충돌하여 발광이 이루어진다. When alternating current is applied to the electrode 20 from the power supply 30, electron particles are emitted from the electron-emitting member 22 of the electrode 20 and collide with mercury and argon gas therein to emit ultraviolet light, and the ultraviolet light is emitted from the fluorescent layer ( The light is emitted by colliding with the fluorescent powder 100 of 12).

본 발명의 범위 또는 기술적 사상을 벗어나지 않고 본 발명의 구조가 다양하게 수정되거나 변경될 수 있음은 이 분야에 숙련된 자들에게 자명하다. 상술한 내용을 고려하여 볼 때, 만약 본 발명의 수정 및 변경이 아래의 청구항들 및 동등물의 범주 내에 속한다면, 본 발명이 이 발명의 변경 및 수정을 포함하는 것으로 여겨진다.It will be apparent to those skilled in the art that the structure of the present invention can be variously modified or changed without departing from the scope or spirit of the present invention. In view of the foregoing, it is intended that the present invention cover the modifications and variations of this invention provided they fall within the scope of the following claims and equivalents.

100: 형광분말 110: 형광체
120: 자기 코어100: fluorescent powder 110: phosphor
120: magnetic core

Claims (9)

형광분말을 포함하는 형광층을 갖는 램프관; 및
상기 램프관 내부로 전자들을 방출하기 위한 전극을 포함하고,
상기 형광분말은
형광체; 및
상기 형광체 주위에 자기장을 형성하기 위한 자기 코어를 포함하며,
상기 전극으로부터 방출되는 전자들은 상기 자기장으로 인해 상기 형광분말 주위에 응집되는 것을 특징으로 하는 조명램프.Lamp tube having a fluorescent layer containing a fluorescent powder; And
An electrode for emitting electrons into the lamp tube,
The fluorescent powder is
Phosphor; And
A magnetic core for forming a magnetic field around the phosphor,
And the electrons emitted from the electrode aggregate around the fluorescent powder due to the magnetic field. 제 1 항에 있어서,
상기 램프관은 내부에 방전 기체를 포함하는 조명램프.The method of claim 1,
The lamp tube is an illumination lamp containing a discharge gas therein. 제 1 항에 있어서,
상기 자기 코어는 페라이트 자석 분말을 포함하는 조명램프.The method of claim 1,
The magnetic core includes a ferrite magnet powder. 제 3 항에 있어서,
상기 페라이트 자석 분말은 바륨페라이트(BaFe12O19) 분말인 것을 특징으로 하는 조명램프.The method of claim 3, wherein
The ferrite magnet powder is an illumination lamp, characterized in that the barium ferrite (BaFe 12 O 19 ) powder. 제 1 항에 있어서,
상기 형광체는 적색 형광체, 녹색 형광체 및 청색 형광체를 포함하는 조명램프.The method of claim 1,
The phosphor comprises a red phosphor, a green phosphor and a blue phosphor. 제 1 항에 있어서,
상기 자기 코어는 상기 형광체 내부에 포함된 구조인 것을 특징으로 하는 조명램프.The method of claim 1,
The magnetic core is an illumination lamp, characterized in that the structure contained within the phosphor. 제 1 항에 있어서,
상기 형광체는 자외선에 반응하여 가시광선을 방출하는 조명램프.The method of claim 1,
The phosphor emits visible light in response to ultraviolet light. 삭제delete 삭제delete
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