[go: up one dir, main page]

JP2005264031A - White light-emitting device - Google Patents

White light-emitting device Download PDF

Info

Publication number
JP2005264031A
JP2005264031A JP2004080248A JP2004080248A JP2005264031A JP 2005264031 A JP2005264031 A JP 2005264031A JP 2004080248 A JP2004080248 A JP 2004080248A JP 2004080248 A JP2004080248 A JP 2004080248A JP 2005264031 A JP2005264031 A JP 2005264031A
Authority
JP
Japan
Prior art keywords
light
phosphor
activator
emitting device
colored
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2004080248A
Other languages
Japanese (ja)
Inventor
Kun-Chui Lee
坤錐 李
Tzu-Chi Cheng
子淇 鄭
Jung-Pin Cheng
栄彬 鄭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP2004080248A priority Critical patent/JP2005264031A/en
Publication of JP2005264031A publication Critical patent/JP2005264031A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Landscapes

  • Luminescent Compositions (AREA)
  • Led Device Packages (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a white light-emitting device capable of emitting a white light with defined contrast. <P>SOLUTION: The white light-emitting device mainly comprises a device and a fluorescent substance. The device includes at least one or more optical semiconductors (LED), and can emit the light between blue color and green color by using the optical semiconductor (LED) as a light source. The fluorescent substance is constituted by mixing or combining different materials. The fluorescent substance is excited by effectively absorbing the light of the light source and emits the second colored light and the first colored light. The light-emitting device can emit the white light having rich expressive power by mixing the first and the second colored lights and a part of the light of the light source. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、一種の白色発光装置の技術分野に属する。特に一種の白色発光色彩が優れ、蛍光体が変質しにくく、白色光の安定性と信頼性を長期にわたって確保可能である白色発光装置の技術分野に属する。   The present invention belongs to the technical field of a kind of white light emitting device. In particular, the present invention belongs to the technical field of white light emitting devices that are excellent in a kind of white light emission color, are not easily altered in phosphor, and can secure the stability and reliability of white light over a long period.

Ｕ．Ｓ６，３５１，０６９Ｂ１発光装置特許案が示す蛍光体はＳｒＳ：Ｅｕ及びＹＡＧ：Ｐｒ３＋の二種の材料により構成される。
上記構造においては発光ダイオードが発する青色を光源とし、該光源がＳｒＳ：Ｅｕ材質の蛍光体を励起し、異なる波長（Wavelength）の光（すなわち第一有色光）を発する。光源は同時にＹＡＧ：Ｐｒ３＋材質の蛍光体を励起し、さらに異なる波長の光（すなわち第二有色光）を発する。該二種の異なる波長の光（すなわち第一、二有色光）と光源の一部は相互に混じり合った後、放出され、人の目により白色光として定義される。
しかし、上記特許案のＳｒＳ：Ｅｕ材質の蛍光体は、硫酸の化学的特性により耐熱性が低く、環境温度の上昇により、しばしば酸化、変質する。そのため、既に変質したＳｒＳ：Ｅｕが光源の照射により励起され発する光の波長（すなわち第一有色光）を予定の範囲に制御するのは困難で、長期間品質を保ちながら目的の色彩の演出を行うことはできない。
Ｕ．Ｓ６，５０４，１７９Ｂ１ ＬＥＤ−ＢＡＳＤ ＷＨＩＴＥ−ＥＭＩＴＴＩＮＧ ＩＬＬＵＭＩＮＡＴＩＯＮ ＵＮＩＴ特許案では、その蛍光体の材質は（１）光源が励起され発する色が緑色である緑色蛍光体（ｇｒｅｅｎ ｅｍｉｔｔｉｎｇ ｐｈｏｓｐｈｏｒ）と（２）光源が励起され発する色が黄色である黄色蛍光体（ｙｅｌｌｏｗ ｅｍｉｔｔｉｎｇ ｐｈｏｓｐｈｏｒ）を混合するもので、ＬＥＤが発する青色光を光源とするため、光源の一部の青色と上記異なる波長の黄色と緑色の光が混合し、白色を現出するものである。
しかし、該特許案の蛍光体が青色光源により励起され発する異なる波長の二つの有色光は赤色系の波長を欠いているため、白色光の演出性はいささか劣る（すなわち白色の表現が暗い）。 U. Phosphor indicated S6,351,069B1 emitting device patent proposal SrS: E u and YAG: constituted by two materials of Pr 3+.
In the above structure as a light source a blue emitting light emitting diode, the light source is SrS: excites the phosphor of the E u material emits light (or first colored light) having different wavelengths (the Wavelength). The light source simultaneously excites a phosphor made of YAG: Pr 3+ and emits light of a different wavelength (ie, second colored light). The two different wavelengths of light (ie, first and second colored light) and a portion of the light source are mixed together and then emitted and defined as white light by the human eye.
However, SrS of Patent proposal: phosphor E u material has low heat resistance chemical properties of the sulfuric acid, the increase in environmental temperature, often oxidized to alteration. Therefore, SrS already altered: E u is is difficult to control the range of expected wavelength of the light emitted is excited (i.e. the first colored light) by the irradiation of a light source, directing the desired color extended period while maintaining the quality Can not do.
U. S6,504,179B1 LED-BASD WHITE-EMITTING ILLUMINATION UNIT In the patent proposal, the phosphor is made of (1) a green phosphor that emits green light when the light source is excited and (2) a light source. This is a mixture of yellow phosphors that are excited and emitted yellow, and the blue light emitted from the LED is used as the light source. Mix to reveal white color.
However, the two colored lights having different wavelengths that are emitted from the phosphor of the patent proposal when excited by a blue light source lack a red wavelength, so that white light is not very effective (that is, the white expression is dark).

公知構造には以下の欠点があった。
すなわち、その蛍光体は硫酸を材質に含むため、硫酸の化学的特性により耐熱性が低く、環境温度の上昇により酸化、変質し易く、変質した蛍光体が光源の照射により励起され発する光の波長を予定の範囲に制御するのは困難で、長期間品質を保ちながら目的の色彩の演出を行うことはできない。
さらに、別の公知案の蛍光体が青色光源により励起され発する異なる波長の二つの有色光は赤色系の波長を欠いているため、白色の表現が暗く、白色光の演出性が劣る。
本発明は上記構造の問題点を解決した白色発光装置を提供するものである。 The known structure has the following drawbacks.
That is, since the phosphor contains sulfuric acid as a material, the heat resistance is low due to the chemical characteristics of sulfuric acid, and it is easy to oxidize and degenerate due to an increase in environmental temperature. Is difficult to control within a predetermined range, and it is impossible to produce a desired color while maintaining quality for a long period of time.
Furthermore, two colored lights having different wavelengths that are emitted when another known phosphor is excited by a blue light source lacks a red wavelength, so that white expression is dark and white light rendering is inferior.
The present invention provides a white light emitting device that solves the problems of the above structure.

上記課題を解決するため、本発明は下記の白色発光装置を提供する。
それは主に装置、蛍光体を含む。
該装置は少なくとも一個以上の光半導体（ＬＥＤ）を含み、該光半導体（ＬＥＤ）を光源とし、青色〜緑色間の光を発することができる。
該蛍光体は該光源の光を効果的に吸収し、励起され、第二有色光及び第一有色光を発し、該第一、二有色光と光源の一部の光が混ざり合った後、表現力豊かな白色光を発することができる。
すなわち、本発明は主に、該蛍光体は乙蛍光体と甲蛍光体を含み、該乙蛍光体は、
（ａ）ＹＡＧ：Ｃｅ（その活性剤はＣｅ）
（ｂ）ＴｂＡＧ：Ｃｅ（その活性剤はＣｅ）
の内の一種或いは多種の組合せ物質を採用し、
該甲蛍光体は、
（ａ）Ｇｄ３Ａ１５Ｏ１２：Ｃｅ（その活性剤はＣｅ）
（ｂ）ＹＡＧ：ＥＵ（その活性剤はＥＵ）
（ｃ）Ｔ２Ｏ３：ＥＵ，Ｂｉ（その活性剤はＥＵとＢｉの組合せ物質）
（ｄ）Ｙ（Ｇｄ）ＢＯ３：ＥＵ（その活性剤はＥＵ）
（ｅ）６ＭｇＯ．ＡＳ２Ｏ５：Ｍｎ（その活性剤はＭｎ）
（ｆ）４ＭｇＯＦ２ＧｅＯ２：Ｍｎ（その活性剤はＭｎ）
（ｇ）ＧｄＭｇＢ５Ｏ１０（その活性剤は少なくともＣｅ或いはＴｂ或いはＭｎ或いはＥｕを含むか或いはこれら活性剤の組合せ物質）
の内の一種或いは多種の組合せ物質を採用し、
さらに、該第二有色光の波長は５８０〜７００ｎｍ間となり、該第一有色光の波長は５２０〜５６５ｎｍ間となり、該第二有色光は前記甲蛍光体が光源の光により励起され発せられ、その色系は赤色系と定義され、該第一有色光は該乙蛍光体が光源の光により励起され発せられ、
さらに、光半導体（ＬＥＤ）が発する光の波長は３６０〜５６０ｎｍの間であり、該蛍光体は該光半導体（ＬＥＤ）上を覆接、或いは該光半導体（ＬＥＤ）に接近し、効果的に光源の光を吸収し、該光半導体（ＬＥＤ）の導電接続端は回路板に接続し、
さらに、該乙蛍光体の材質がＹＡＧである時、その活性剤は単独でＰｒ或いはＤｙ、或いはＰｒとＤｙの組合せ物質を選択することができ、該乙蛍光体の材質がＴｂＡＧである時、その活性剤は単独でＰｒ或いはＤｙ、或いはＰｒとＤｙの組合せ物質とすることができることを特徴とする白色発光装置である。 In order to solve the above problems, the present invention provides the following white light emitting device.
It mainly includes devices, phosphors.
The apparatus includes at least one optical semiconductor (LED), and can emit light between blue and green using the optical semiconductor (LED) as a light source.
The phosphor effectively absorbs light of the light source, is excited, emits second colored light and first colored light, and after the first and second colored light and a part of the light of the light source are mixed, It can emit white light with rich expressive power.
That is, in the present invention, the phosphor mainly includes a second phosphor and a first phosphor,
(A) YAG: C e (the active agent is C e )
(B) T b AG: C e (the activator is C e )
Adopting one or many kinds of combination materials,
The former phosphor is
(A) Gd 3 A1 5 O 12 : C e (the activator is C e )
(B) YAG: E U (the active agent is E U )
(C) T 2 O 3: E U, B i ( the active agent is a combination material of E U and B i)
(D) Y (Gd) BO 3: E U ( the active agent E U)
(E) 6MgO. A S2 O 5 : M n (the active agent is M n )
(F) 4MgOF 2 GeO 2 : M n (the activator is M n )
(G) GdMgB 5 O 10 (combination agent of the active agent or contains at least C e or T b or M n or E u or their active agents)
Adopting one or many kinds of combination materials,
Further, the wavelength of the second colored light is between 580 and 700 nm, the wavelength of the first colored light is between 520 and 565 nm, and the second colored light is emitted when the former phosphor is excited by the light of the light source, The color system is defined as red, and the first colored light is emitted when the phosphor is excited by light from a light source,
Furthermore, the wavelength of light emitted from the optical semiconductor (LED) is between 360 to 560 nm, and the phosphor covers the optical semiconductor (LED) or approaches the optical semiconductor (LED), effectively. Absorbs the light of the light source, the conductive connection end of the optical semiconductor (LED) is connected to the circuit board,
Further, when the material of the phosphor is YAG, the activator can be selected from Pr or Dy or a combination of Pr and Dy, and when the material of the phosphor is TbAG, The white light emitting device is characterized in that the activator can be Pr or Dy alone or a combination of Pr and Dy.

上記のように、本発明の白色発光装置が現出する白色光は演出性に優れ、明るくかつコントラストが鮮やかである。さらに本発明白色発光装置の蛍光体の材質は耐熱性が高く、変質しにくく、長期にわたり白色光を発することができ、確実に高品質の白色光を演出することができる。   As described above, the white light produced by the white light emitting device of the present invention has excellent performance, is bright, and has a bright contrast. Further, the material of the phosphor of the white light emitting device of the present invention has high heat resistance, hardly changes in quality, can emit white light for a long period of time, and can surely produce high quality white light.

図１、２に示すように、本発明は装置１００、蛍光体３０を含む。
該装置１００は少なくとも一個以上の光半導体（ＬＥＤ）１０を含み、該光半導体（ＬＥＤ）１０を光源とし、青色〜緑色間の光２０を発することができる。
該蛍光体３０は該光源の光２０を効果的に吸収し、励起され、第二有色光４０及び第一有色光５０を発する。該第一、二有色光５０、４０と光源の一部の光２０’は混ざり合った後、表現力豊かな白色光６０を発することができる。 As shown in FIGS. 1 and 2, the present invention includes an apparatus 100 and a phosphor 30.
The device 100 includes at least one or more optical semiconductors (LEDs) 10, and the optical semiconductors (LEDs) 10 can be used as a light source to emit light 20 between blue and green.
The phosphor 30 effectively absorbs the light 20 of the light source, is excited, and emits second colored light 40 and first colored light 50. The first and second colored lights 50 and 40 and a part of the light 20 ′ of the light source 20 ′ can be mixed and then emit white light 60 rich in expressive power.

該蛍光体３０は乙蛍光体３２と甲蛍光体３４を含む。
該乙蛍光体３２は以下の一種或いは多種の組合せ物質を採用する。
（ａ）ＹＡＧ：Ｃｅ（その活性剤はＣｅ）
（ｂ）ＴｂＡＧ：Ｃｅ（その活性剤はＣｅ）
一方、該甲蛍光体３４は以下の一種或いは多種の組合せ物質を採用する。
（ａ）Ｇｄ３Ａ１５Ｏ１２：Ｃｅ（その活性剤はＣｅ）
（ｂ）ＹＡＧ：ＥＵ（その活性剤はＣｅ）
（ｃ）Ｔ２Ｏ３：ＥＵ，Ｂｉ（その活性剤はＥＵとＢｉの組合せ物質）
（ｄ）Ｙ（Ｇｄ）ＢＯ３：ＥＵ（その活性剤はＥＵ）
（ｅ）６ＭｇＯ．ＡＳ２Ｏ５：Ｍｎ（その活性剤はＭｎ）
（ｆ）４ＭｇＯＦ２ＧｅＯ２：Ｍｎ（その活性剤はＭｎ）
（ｇ）ＧｄＭｇＢ５Ｏ１０（その活性剤は少なくともＣｅ或いはＴｂ或いはＭｎ或いはＥｕを含むか或いはこれら活性剤の組合せ物質）。 The phosphor 30 includes a second phosphor 32 and a former phosphor 34.
The second phosphor 32 employs the following one or various combination materials.
(A) YAG: C e (the active agent is C e )
(B) T b AG: C e (the activator is C e )
On the other hand, the former phosphor 34 employs the following one or various combination materials.
(A) Gd 3 A1 5 O 12 : C e (the activator is C e )
(B) YAG: E U (the activator is C e )
(C) T 2 O 3: E U, B i ( the active agent is a combination material of E U and B i)
(D) Y (Gd) BO 3: E U ( the active agent E U)
(E) 6MgO. A S2 O 5 : M n (the active agent is M n )
(F) 4MgOF 2 GeO 2 : M n (the activator is M n )
(G) GdMgB 5 O 10 (the activator contains at least Ce, Tb, Mn, Eu, or a combination of these activators).

上記主要な特徴に基づき、該第二有色光４０のその比較的良好な選択波長は５８０〜７００ｎｍ間となり、該第一有色光５０のその比較的良好な選択の波長は５２０〜５６５ｎｍ間となる。その色系は緑色を定義される。該第二有色光４０は該甲蛍光体３４が光源の光２０により励起され発せられ、その色系は赤色系と定義される(図３参照)。
該第一有色光５０は該乙蛍光体３２が光源の光２０により励起され発せられる。
上記主要な特徴に基づき、該光半導体（ＬＥＤ）２０が発する光の波長は３６０〜５６０ｎｍの範囲の間において選定することができ、これを持って選択使用することができる。
上記主要な特徴に基づき、該蛍光体３０は該光半導体（ＬＥＤ）１０上を覆接、或いは接近し、効果的に光源の光２０を吸収する。
上記主要な特徴に基づき、該光半導体（ＬＥＤ）１０の導電接続端１２は回路板８０に接続する。
上記主要な特徴に基づき、該乙蛍光体３２の材質はＹＡＧである時、その活性剤は単独でＰｒ或いはＤｙ、或いはＰｒとＤｙの組合せ物質を選択することができる。
該乙蛍光体の材質がＴｂＡＧである時、その活性剤は単独でＰｒ或いはＤｙ、或いはＰｒとＤｙの組合せ物質とすることができる。 Based on the main features, the relatively good selection wavelength of the second colored light 40 is between 580 and 700 nm, and the relatively good selection wavelength of the first colored light 50 is between 520 and 565 nm. . Its color system is defined as green. The second colored light 40 is emitted when the instep phosphor 34 is excited by the light 20 of the light source, and its color system is defined as a red system (see FIG. 3).
The first colored light 50 is emitted when the phosphor 32 is excited by the light 20 of the light source.
Based on the main features described above, the wavelength of light emitted from the optical semiconductor (LED) 20 can be selected within the range of 360 to 560 nm, and can be selected and used with this.
Based on the main features, the phosphor 30 covers or approaches the optical semiconductor (LED) 10 and effectively absorbs the light 20 of the light source.
Based on the main features, the conductive connection end 12 of the optical semiconductor (LED) 10 is connected to the circuit board 80.
Based on the main characteristics, when the material of the phosphor 32 is YAG, Pr or Dy or a combination of Pr and Dy can be selected as the activator alone.
When the material of該乙phosphor is T b AG, the active agent alone can be a Pr or Dy, or Pr and Dy combination substance.

実施方式：
図１、５に示すように、本発明の裝置１００は光半導体（ＬＥＤ）１０を光源とし、該光半導体（ＬＥＤ）１０の二導電接続端１２は回路板８０に接続し、電気回路を形成する。回路が通電する時、該光ＬＥＤ１０が発する波長は３６０〜５６０ｎｍ間の光２０で、該光２０の色は青〜緑色間と定義される。本考案の光２０が選択する光の波長の最高値は４００〜４５０ｎｍを優良実施例とする（図２、３参照）。
蛍光体３０は甲、乙蛍光体３４、３２（材質）により構成され、該光半導体（ＬＥＤ）１０上を覆接或いは蓋接、或いは該光半導体（ＬＥＤ）１０に接近する。該乙蛍光体３２の材料は以下の一種或いは二種以上の組合せ物質より選択し使用する。
(a).活性剤はセリウム元素（Ｃｅ）により活性化されたセリウム添加イットリウム・アルミニウム・ガーネット（ＹＡＧ：Ｃｅ）。
(b).活性剤はセリウム元素（Ｃｅ）及びテルビウム元素（Ｔｂ）により活性化され
たセリウム添加テルビウム・アルミニウム・ガーネット（ＴｂＡＧ：Ｃｅ）。
そのため、該蛍光体３０に含まれる該乙蛍光体３２材質は光源の光２０の照射を受け、励起された後、波長が５２０〜５６５ｎｍ間である第一有色光５０を発する。図２に示すように、該第一有色光５０は緑色系の波長区域と定義される。該乙蛍光体３２の材質がＹＡＧである時、その活性剤はＰｒ或いはＤｙ、或いはその２種の活性剤の組合せとすることができる。該乙蛍光体３２の材質はＴｂＡＧである時、その活性剤はＤｙ或いはＰｒ、或いはその２種の活性剤の組合せとすることができる。
該甲蛍光体３４の材料は以下の一種或いは二種以上の材料の組合せを選択し使用する。
(a).Ｇｄ３Ａｌ５Ｏ１２：Ｃｅ（活性剤はＣｅ）。
(b).ＹＡＧ：ＥＵ（その活性剤はＥＵ）。
(c).Ｙ２Ｏ３：ＥＵ，Ｂｉ（その活性剤はＥＵ及Ｂｉ）。
(d).Ｙ（Ｇｄ）ＢＯ３：ＥＵ（その活性剤はＥＵ）。
(e).６ＭｇＯ?ＡＳ２Ｏ５：Ｍｎ（その活性剤はＭｎ）。
(f).４ＭｇＯＦ２ＧｅＯ２：Ｍｎ（その活性剤はＭｎ）。
(g).ＧｄＭｇＢ５Ｏ１０：Ｃｅ，Ｔｂ，Ｍｎ，Ｅｕ（その活性剤はＣｅ、Ｔｂ、Ｍｕ、Ｅｕの内の一種或いは二種以上の組合せ）。
該乙蛍光体３２の材質が光源の光２０の照射を受け励起され発する波長は５２０〜５６５ｎｍ間の第一有色光５０（図２参照）である。該第一有色光５０は緑色系の波長区域と定義される。
該光源の光２０の内、該甲、乙蛍光体３４、３２を励起しない一部の光２０′は該第一、二色光５０、４０と再び混合し、該裝置１００外に放出され、演色性が良好な白色光６０となる。図４の本発明実験により得られた白色光スペクトル曲線図に示すように、該スペクトルは該第一、二色光５０、４０と一部の光２０′の三波長が相互に混合し形成する曲線図である。該図中の第二有色光４０が示す曲線は明らかに突出しているため、この三色の光の波長が混合し白色光６０の演色性を形成することができる。
こうして、本発明が現出する白色光の色系は自然の太陽光（すなわち白色光）により一層近づき、極めて良好な白色光色系を具えることとなる。
さらに、本発明の甲、乙蛍光体３４、３２は硫化物（Ｓ）を含まないため、高い耐熱性を具え、環境温度の上昇による甲、乙蛍光体３４、３２の変質を恐れる必要はない。 Implementation method:
As shown in FIGS. 1 and 5, the device 100 of the present invention uses an optical semiconductor (LED) 10 as a light source, and a two-conductive connection end 12 of the optical semiconductor (LED) 10 is connected to a circuit board 80 to form an electric circuit. To do. When the circuit is energized, the wavelength emitted by the light LED 10 is light 20 between 360 and 560 nm, and the color of the light 20 is defined as between blue and green. The maximum value of the wavelength of light selected by the light 20 of the present invention is 400 to 450 nm as an excellent example (see FIGS. 2 and 3).
The phosphor 30 is composed of the former and second phosphors 34 and 32 (materials), and covers or covers the optical semiconductor (LED) 10 or approaches the optical semiconductor (LED) 10. The material of the phosphor 32 is selected from the following one or two or more combined substances.
. (a) the active agent is a cerium element (C e) by activated cerium-doped yttrium aluminum garnet (YAG: C e).
(b) The activator is cerium-added terbium aluminum garnet (T b AG: C e ) activated by cerium element (C e ) and terbium element (T b ).
Therefore, the phosphor 32 material included in the phosphor 30 emits first colored light 50 having a wavelength of 520 to 565 nm after being irradiated with the light 20 of the light source and excited. As shown in FIG. 2, the first colored light 50 is defined as a green wavelength region. When the material of the second phosphor 32 is YAG, the activator can be Pr or Dy, or a combination of the two activators. When the material of the B phosphor 32 is T b AG, the activator can be Dy or Pr, or a combination of the two activators.
As the material of the instep phosphor 34, the following one kind or a combination of two or more kinds of materials is selected and used.
(a). Gd 3 Al 5 O 12 : C e (activator is C e ).
(b) .YAG: E U (the active agent E U).
(c) .Y 2 O 3: E U, B i ( the active agent E U及B i).
(d) Y (Gd) BO 3 : E U (the activator is E U ).
? (e) .6MgO A S2 O 5: M n ( the active agent M n).
(f) .4MgOF 2 GeO 2 : M n (the activator is M n ).
(g). GdMgB 5 O 10 : C e , T b , M n , E u (the activator is one or a combination of two or more of C e , T b , M u , and E u ).
The wavelength of the phosphor material 32 that is excited and emitted when irradiated with the light 20 of the light source is the first colored light 50 (see FIG. 2) between 520 and 565 nm. The first colored light 50 is defined as a green wavelength region.
Among the light 20 of the light source, a part of the light 20 ′ that does not excite the instep and the second phosphors 34 and 32 is mixed again with the first and second color lights 50 and 40, and is emitted to the outside of the apparatus 100, so The white light 60 has good properties. As shown in the white light spectrum curve obtained by the experiment of the present invention in FIG. 4, the spectrum is a curve formed by mixing the three wavelengths of the first and second color lights 50 and 40 and a part of the light 20 '. FIG. Since the curve indicated by the second colored light 40 in the figure clearly protrudes, the wavelengths of the three colors of light can be mixed to form the color rendering of the white light 60.
Thus, the color system of white light that the present invention appears is closer to natural sunlight (that is, white light) and has a very good white light color system.
Furthermore, since the former and second phosphors 34 and 32 of the present invention do not contain sulfide (S), they have high heat resistance, and there is no need to fear the alteration of first and second phosphors 34 and 32 due to an increase in environmental temperature. .

本発明の方法のフローチャートである。3 is a flowchart of the method of the present invention. 本発明の乙蛍光体が光源に励起され、第一有色光を発する時のスペクトル曲線図である。It is a spectrum curve figure when the B phosphor of the present invention emits first colored light when excited by a light source. 本発明の甲蛍光体が光源に励起され、第二有色光を発する時のスペクトル曲線図である。It is a spectrum curve figure when the former A fluorescent substance of the present invention emits the second colored light when excited by the light source. 本発明の白色光出現時のスペクトル曲線図である。It is a spectrum curve figure at the time of white light appearance of this invention. 本発明の装置実施例の断面図である。It is sectional drawing of the Example of an apparatus of this invention.

符号の説明Explanation of symbols

１０ 光半導体
１２ 接続端
１００ 装置
２０ 光
２０’ 光
３０ 蛍光体
３４ 甲蛍光体
３２ 乙蛍光体
４０ 第二有色光
５０ 第一有色光
６０ 白色光
８０ 回路板
DESCRIPTION OF SYMBOLS 10 Optical semiconductor 12 Connection end 100 Device 20 Light 20 'Light 30 Phosphor 34 Back phosphor 32 B phosphor 40 Second colored light 50 First colored light 60 White light 80 Circuit board

Claims (6)

主に装置、蛍光体を含み、
該装置は少なくとも一個以上の光半導体（ＬＥＤ）を含み、該光半導体（ＬＥＤ）を光源とし、青色〜緑色間の光を発することができ、
該蛍光体は該光源の光を効果的に吸収し、励起され、第二有色光及び第一有色光を発し、該第一、二有色光と光源の一部の光が混ざり合った後、表現力豊かな白色光を発することができ、
該蛍光体は乙蛍光体と甲蛍光体を含み、
該乙蛍光体は、
（ａ）ＹＡＧ：Ｃｅ（その活性剤はＣｅ）
（ｂ）ＴｂＡＧ：Ｃｅ（その活性剤はＣｅ）
の内の一種或いは多種の組合せ物質を採用し、
該甲蛍光体は、
（ａ）Ｇｄ３Ａ１５Ｏ１２：Ｃｅ（その活性剤はＣｅ）
（ｂ）ＹＡＧ：ＥＵ（その活性剤はＣｅ）
（ｃ）Ｔ２Ｏ３：ＥＵ，Ｂｉ（その活性剤はＥＵとＢｉの組合せ物質）
（ｄ）Ｙ（Ｇｄ）ＢＯ３：ＥＵ（その活性剤はＥＵ）
（ｅ）６ＭｇＯ．ＡＳ２Ｏ５：Ｍｎ（その活性剤はＭｎ）
（ｆ）４ＭｇＯＦ２ＧｅＯ２：Ｍｎ（その活性剤はＭｎ）
（ｇ）ＧｄＭｇＢ５Ｏ１０（その活性剤は少なくともＣｅ或いはＴｂ或いはＭｎ或いはＥｕを含むか或いはこれら活性剤の組合せ物質）
の内の一種或いは多種の組合せ物質を採用することを特徴とする白色発光
装置。 Mainly including equipment, phosphor,
The apparatus includes at least one or more optical semiconductors (LEDs), the optical semiconductors (LEDs) are used as light sources, and can emit light between blue and green.
The phosphor effectively absorbs light of the light source, is excited, emits second colored light and first colored light, and after the first and second colored light and a part of the light of the light source are mixed, Can emit expressive white light,
The phosphor includes a second phosphor and a former phosphor,
The second phosphor is
(A) YAG: C e (the active agent is C e )
(B) T b AG: C e (the activator is C e )
Adopting one or many kinds of combination materials,
The former phosphor is
(A) Gd 3 A1 5 O 12 : C e (the activator is C e )
(B) YAG: E U (the activator is C e )
(C) T 2 O 3: E U, B i ( the active agent is a combination material of E U and B i)
(D) Y (Gd) BO 3: E U ( the active agent E U)
(E) 6MgO. A S2 O 5 : M n (the active agent is M n )
(F) 4MgOF 2 GeO 2 : M n (the activator is M n )
(G) GdMgB 5 O 10 (the activator contains at least Ce, Tb, Mn, Eu or a combination of these activators)
A white light-emitting device characterized by employing one or various combination materials. 前記第二有色光の波長は５８０〜７００ｎｍ間となり、前記第一有色光の波長は５２０〜５６５ｎｍ間となり、その色系は緑色系と定義され、前記第二有色光は前記甲蛍光体が光源の光により励起され発せられ、その色系は赤色系と定義され、
前記第一有色光は前記乙蛍光体が光源の光により励起され発せられることを特徴とする請求項１記載の白色発光装置。 The wavelength of the second colored light is between 580 and 700 nm, the wavelength of the first colored light is between 520 and 565 nm, the color system is defined as green, and the second colored light is emitted from the former phosphor. Excited and emitted by light, the color system is defined as red,
2. The white light emitting device according to claim 1, wherein the first colored light is emitted when the second phosphor is excited by light from a light source. 前記光半導体（ＬＥＤ）が発する光の波長は３６０〜５６０ｎｍの間であることを特徴とする請求項１記載の白色発光装置。 The white light emitting device according to claim 1, wherein the wavelength of light emitted from the optical semiconductor (LED) is between 360 to 560 nm. 前記蛍光体は前記光半導体（ＬＥＤ）上を覆接、或いは前記光半導体（ＬＥＤ）に接近し、効果的に光源の光を吸収することを特徴とする請求項１記載の白色発光装置。 2. The white light emitting device according to claim 1, wherein the phosphor covers the optical semiconductor (LED) or approaches the optical semiconductor (LED) and effectively absorbs light from the light source. 前記光半導体（ＬＥＤ）の導電接続端は回路板に接続することを特徴とする請求項１記載の白色発光装置。 The white light emitting device according to claim 1, wherein a conductive connection end of the optical semiconductor (LED) is connected to a circuit board. 前記乙蛍光体の材質がＹＡＧである時、その活性剤は単独でＰｒ或いはＤｙ、或いはＰｒとＤｙの組合せ物質を選択することができ、
前記乙蛍光体の材質がＴｂＡＧである時、その活性剤は単独でＰｒ或いはＤｙ、或いはＰｒとＤｙの組合せ物質とすることができることを特徴とする請求項１記載の白色発光装置。
When the second phosphor is made of YAG, the activator can be selected from Pr or Dy alone or a combination of Pr and Dy,
2. The white light emitting device according to claim 1, wherein when the material of the second phosphor is T b AG, the activator can be Pr or Dy or a combination of Pr and Dy alone.
JP2004080248A 2004-03-19 2004-03-19 White light-emitting device Pending JP2005264031A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004080248A JP2005264031A (en) 2004-03-19 2004-03-19 White light-emitting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004080248A JP2005264031A (en) 2004-03-19 2004-03-19 White light-emitting device

Publications (1)

Publication Number Publication Date
JP2005264031A true JP2005264031A (en) 2005-09-29

Family

ID=35088905

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004080248A Pending JP2005264031A (en) 2004-03-19 2004-03-19 White light-emitting device

Country Status (1)

Country Link
JP (1) JP2005264031A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100697794B1 (en) 2004-06-29 2007-03-20 특허법인 맥 Mixed phosphor and white light emitting device using same
CN109054446A (en) * 2018-08-23 2018-12-21 华北水利水电大学 A kind of black inorganic ceramic paint of perovskite structure and preparation method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000244021A (en) * 1999-02-18 2000-09-08 Agilent Technol Inc LED using phosphor to compensate for red deficiency
JP2001228809A (en) * 1999-12-09 2001-08-24 Fuji Photo Film Co Ltd Display device
JP2002226846A (en) * 2001-02-06 2002-08-14 Matsushita Electric Ind Co Ltd Illumination phosphor, light emitting diode using the illumination phosphor, and method of applying phosphor
JP2002299691A (en) * 2001-04-04 2002-10-11 Seiwa Electric Mfg Co Ltd Light emitting diode lamp and filter used therefor
JP2003505583A (en) * 1999-07-23 2003-02-12 オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング Luminescent substance device, wavelength conversion injection molding material and light source
JP2003243727A (en) * 2001-12-14 2003-08-29 Nichia Chem Ind Ltd Light emitting apparatus
JP2003273409A (en) * 2002-02-25 2003-09-26 Lumileds Lighting Us Llc Red deficient compensation fluorescent light emitting device
WO2004036618A1 (en) * 2002-10-14 2004-04-29 Philips Intellectual Property & Standards Gmbh Luminous body for generating white light

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000244021A (en) * 1999-02-18 2000-09-08 Agilent Technol Inc LED using phosphor to compensate for red deficiency
JP2003505583A (en) * 1999-07-23 2003-02-12 オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング Luminescent substance device, wavelength conversion injection molding material and light source
JP2001228809A (en) * 1999-12-09 2001-08-24 Fuji Photo Film Co Ltd Display device
JP2002226846A (en) * 2001-02-06 2002-08-14 Matsushita Electric Ind Co Ltd Illumination phosphor, light emitting diode using the illumination phosphor, and method of applying phosphor
JP2002299691A (en) * 2001-04-04 2002-10-11 Seiwa Electric Mfg Co Ltd Light emitting diode lamp and filter used therefor
JP2003243727A (en) * 2001-12-14 2003-08-29 Nichia Chem Ind Ltd Light emitting apparatus
JP2003273409A (en) * 2002-02-25 2003-09-26 Lumileds Lighting Us Llc Red deficient compensation fluorescent light emitting device
WO2004036618A1 (en) * 2002-10-14 2004-04-29 Philips Intellectual Property & Standards Gmbh Luminous body for generating white light

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100697794B1 (en) 2004-06-29 2007-03-20 특허법인 맥 Mixed phosphor and white light emitting device using same
CN109054446A (en) * 2018-08-23 2018-12-21 华北水利水电大学 A kind of black inorganic ceramic paint of perovskite structure and preparation method thereof
CN109054446B (en) * 2018-08-23 2020-09-18 华北水利水电大学 Preparation method of black inorganic ceramic pigment with perovskite structure

Similar Documents

Publication Publication Date Title
US8651723B2 (en) LED light source with a luminescent layer
JP2005167177A (en) Light emitting device
JP3825318B2 (en) Luminescent substance device, wavelength conversion injection molding material and light source
JP4875198B1 (en) LED bulb
JP5732059B2 (en) LED bulb
TWI425650B (en) Light source with improved dimming performance
TW200849669A (en) White light-emitting lamp and illuminating device using the same
TW200419623A (en) Luminous body for generating white light
CN101257012A (en) light emitting device
JP5097190B2 (en) Red fluorescent material, method for producing the same, and white fluorescent device
TWI695875B (en) Blue emitting phosphor converted led with blue pigment
JP2004296830A (en) Manufacturing method of white LED
US20050242360A1 (en) White light apparatus with adjustable color temperature and method of producing white light thereof
TW200805705A (en) White light-emitting led lamp, backlight using the same, and liquid crystal display
JP2012064568A (en) LED bulb
JP4912176B2 (en) Light emitting device
WO2011117791A1 (en) Led-based lighting device comprising a plurality of luminescent materials
TWM380580U (en) White LED device
AU2015284080A1 (en) Oxyfluoride phosphor compositions and lighting apparatus thereof
JP2005264031A (en) White light-emitting device
JP2015002182A (en) Lighting device
CN100449803C (en) Phosphor and white light emitting diode thereof
JP2011035236A (en) White led light source unit
JP3118485U (en) White light emitting device
KR20060089595A (en) Light emitting device

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080123

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080129

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20080701