JP2006324407A5 - - Google Patents

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Publication number
JP2006324407A5
JP2006324407A5 JP2005145452A JP2005145452A JP2006324407A5 JP 2006324407 A5 JP2006324407 A5 JP 2006324407A5 JP 2005145452 A JP2005145452 A JP 2005145452A JP 2005145452 A JP2005145452 A JP 2005145452A JP 2006324407 A5 JP2006324407 A5 JP 2006324407A5
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Japan
Prior art keywords
light
phosphor
emitting device
wavelength region
light emitting
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JP2005145452A
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Japanese (ja)
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JP2006324407A (en
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Priority to JP2005145452A priority Critical patent/JP2006324407A/en
Priority claimed from JP2005145452A external-priority patent/JP2006324407A/en
Publication of JP2006324407A publication Critical patent/JP2006324407A/en
Publication of JP2006324407A5 publication Critical patent/JP2006324407A5/ja
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Claims (6)

発光素子の発光に基づいて生じる第１の光を波長変換して、前記第１の光と異なる波長領域の第２の光を外部放射させる発光装置において、
第１の光として青色光を放射するＬＥＤ素子と、
前記青色光の放射に基づいて励起されて前記青色光と異なる発光波長領域を有する第２の光を放射する黄色蛍光体と、前記青色光の放射に基づいて励起されて前記青色光と異なる４８０〜５３０ｎｍの発光波長領域を有する第３の光を放射する緑色蛍光体とを含む波長変換部とを有することを特徴とする発光装置。 In the light emitting device for converting the wavelength of the first light generated based on the light emission of the light emitting element and emitting the second light in a wavelength region different from the first light to the outside,
An LED element that emits blue light as the first light ;
A yellow phosphor that emits second light having a light emission wavelength region that differs and the blue light is excited on the basis of the emission of the blue light, and the blue light is excited on the basis of the emission of the blue light And a wavelength conversion unit including a green phosphor that emits third light having a different emission wavelength region of 480 to 530 nm. 前記黄色蛍光体は、ガーネット構造蛍光体のＹＡＧ蛍光体であり、５５０〜５７０ｎｍの発光波長領域を有する請求項１に記載の発光装置。 The yellow phosphor, Ri YAG phosphor der garnet structure phosphor, the light emitting device according to claim 1 having a light emission wavelength region of 550～570Nm. 前記緑色蛍光体は、Ｍ’ａＭ’’ｂＭ’’’ｃＯｄの一般式で表され、Ｍ’はＭｇ、Ｃａ、Ｚｎ、Ｓｒ、ＣｄおよびＢａの少なくとも１種である２価の金属元素から選択され、Ｍ’’はＡｌ、Ｓｃ、Ｇａ、Ｙ、Ｉｎ、Ｌａ、ＧｄおよびＬｕの少なくとも１種である３価の金属元素から選択され、Ｍ’’’はＳｉ、Ｔｉ、Ｇｅ、Ｚｒ、Ｓｎ、およびＨｆの少なくとも１種である４価の金属元素から選択される化合物を母体とする蛍光体である請求項１に記載の発光装置。 The green phosphor is represented by a general formula of M ′ a M ″ b M ′ ″ c O d , where M ′ is at least one of Mg, Ca, Zn, Sr, Cd and Ba. M ″ is selected from trivalent metal elements that are at least one of Al, Sc, Ga, Y, In, La, Gd, and Lu, and M ′ ″ is Si, Ti, Ge , Zr, Sn, and a light-emitting device according to claim 1, which is a fluorescent substance shall be the base of a compound selected from tetravalent metal elements is at least one Hf. 前記緑色蛍光体は、Ｍ’ａＭ’’ｂＳ４の一般式で表され、Ｍ’はＭｇ、Ｃａ、Ｓｒの少なくとも１種である２価の元素から選択され、Ｍ’’はＡｌ、Ｇａ、Ｙの少なくとも１種である３価の元素から選択される化合物を母体とする蛍光体である請求項１に記載の発光装置。 The green phosphor is represented by a general formula of M ′ a M ″ b S 4 , where M ′ is selected from divalent elements that are at least one of Mg, Ca, and Sr, and M ″ is Al, Ga, light emitting device according to claim 1, which is a fluorescent substance shall be the base of the selected compound from a trivalent element is at least one of Y. 前記ＬＥＤ素子の前記青色光は、発光波長領域４５０〜４６０ｎｍである請求項１に記載の発光装置。The light emitting device according to claim 1, wherein the blue light of the LED element has a light emission wavelength region of 450 to 460 nm. 前記波長変換部は、フリップチップ型ＬＥＤ素子の基板側に前記黄色蛍光体を含む第１の蛍光体層と、第１の蛍光体層に積層される前記緑色蛍光体を含む第２の蛍光体層とを積層して設けられ、前記第２の蛍光体層が実装面に実装されている請求項１に記載の発光装置。   The wavelength converter includes a first phosphor layer containing the yellow phosphor on the substrate side of the flip-chip type LED element, and a second phosphor containing the green phosphor laminated on the first phosphor layer. The light emitting device according to claim 1, wherein the second phosphor layer is mounted on a mounting surface.
JP2005145452A 2005-05-18 2005-05-18 Light emitting device Withdrawn JP2006324407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005145452A JP2006324407A (en) 2005-05-18 2005-05-18 Light emitting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005145452A JP2006324407A (en) 2005-05-18 2005-05-18 Light emitting device

Publications (2)

Publication Number Publication Date
JP2006324407A JP2006324407A (en) 2006-11-30
JP2006324407A5 true JP2006324407A5 (en) 2007-12-06

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Family Applications (1)

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JP2005145452A Withdrawn JP2006324407A (en) 2005-05-18 2005-05-18 Light emitting device

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5075552B2 (en) * 2007-09-25 2012-11-21 株式会社東芝 Phosphor and LED lamp using the same
JP5330263B2 (en) 2007-12-07 2013-10-30 株式会社東芝 Phosphor and LED light emitting device using the same
JP4930408B2 (en) * 2008-02-19 2012-05-16 豊田合成株式会社 Optical device and manufacturing method thereof
DE102009022682A1 (en) * 2009-05-26 2010-12-02 Osram Opto Semiconductors Gmbh Method for producing a light-emitting diode
KR101798232B1 (en) * 2010-07-07 2017-11-15 엘지이노텍 주식회사 Light emitting device, method for fabricating the light emitting device, light emitting device package and lighting system
JP2014165116A (en) 2013-02-27 2014-09-08 Sony Corp Illumination device and display apparatus
CN104835901B (en) * 2015-04-09 2018-04-10 苏州晶品新材料股份有限公司 Ultrathin flexible double-side LED light source based on secondary optical design
CN107636113B (en) 2015-06-12 2020-09-22 株式会社东芝 Phosphor, method for producing same, and LED lamp

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