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    PHOSPHOR, METHOD FOR PRODUCING THE SAME, AND LIGHT-EMITTING DEVICE USING THE SAME
    1.
    发明申请
    PHOSPHOR, METHOD FOR PRODUCING THE SAME, AND LIGHT-EMITTING DEVICE USING THE SAME 审中-公开
    磷光体，其制造方法和使用其的发光装置

    公开(公告)号：US20160087163A1

    公开(公告)日：2016-03-24

    申请号：US14851327

    申请日：2015-09-11

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Yumi Fukuda ,  Masahiro Kato

    IPC分类号： H01L33/50 ,  C09K11/77

    CPC分类号： H01L33/504 ,  C09K11/7721 ,  H01L33/505 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2924/181 ,  H01L2924/00012 ,  H01L2924/00014 ,  H01L2924/00

    摘要： A present embodiment is to provide a phosphor that has favorable temperature characteristics, that can emit yellow light having excellent color rendering properties, and that has high quantum efficiency. The phosphor emits yellow light when excited with light having a luminescence peak in a wavelength range of 250 to 500 nm and has a crystal structure that is substantially identical to the crystal structure of Sr2Al3Si7ON13. In the average crystal structure of the phosphor determined by Rietveld analysis, the distance between an atom at coordinates corresponding to the first coordinates of Sr, M, or Ce atoms and an atom at coordinates corresponding to the 14th coordinates of O or N atoms is 2.0 to 2.6 Å in a case in which the crystal structure is analyzed, assuming that the crystal structure belongs to a space group Pna21, and is represented using crystal structure data standardization software STRUCTURE TIDY.

    摘要翻译： 本实施例是提供具有良好的温度特性的荧光体，其可以发出具有优异显色性的黄色光，并且具有高的量子效率。 当在250-500nm的波长范围内具有发光峰的光激发时，荧光体发射黄光，并具有与Sr 2 Al 3 Si 7 ON 13的晶体结构基本相同的晶体结构。 在通过Rietveld分析确定的荧光体的平均晶体结构中，与Sr，M或Ce原子的第一坐标对应的坐标处的原子与对应于O或N原子的第14坐标的坐标处的原子之间的距离为2.0 假设晶体结构属于空间群Pna21，并且使用晶体结构数据标准化软件STRUCTURE TIDY表示，在分析晶体结构的情况下为2.6。

    Structure and joined composite
    6.
    发明授权
    Structure and joined composite 有权

    公开(公告)号：US11355416B2

    公开(公告)日：2022-06-07

    申请号：US17007087

    申请日：2020-08-31

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Yumi Fukuda ,  Koichi Harada ,  Yasushi Hattori ,  Maki Yonetsu ,  Kenji Essaki ,  Keiko Albessard ,  Yasuhiro Goto

    IPC分类号： H01L23/373

    摘要： A structure includes: a β silicon nitride crystal phase; and a Y2MgSi2O5N crystal phase. The structure gives a X-ray diffraction pattern by a θ-2θ method, the pattern having a ratio of a peak intensity of a (22-1) plane of the Y2MgSi2O5N crystal phase to a peak intensity of a (200) plane of the β silicon nitride crystal phase, the peak intensity of the (200) plane being determined at a position of 2θ=27.0±1°, the peak intensity of the (22-1) plane being determined at a position of 2θ=30.3±1°, and the ratio being 0.001 or more and 0.01 or less.

    Light-emitting device with phosphor excited by blue excitation light
    7.
    发明授权
    Light-emitting device with phosphor excited by blue excitation light 有权
    具有由蓝色激发光激发的荧光体的发光装置

    公开(公告)号：US09520540B2

    公开(公告)日：2016-12-13

    申请号：US14184881

    申请日：2014-02-20

    申请人： Kabushiki Kaisha Toshiba

    发明人： Kunio Ishida ,  Keiko Albessard ,  Yasushi Hattori ,  Iwao Mitsuishi ,  Yumi Fukuda ,  Ryosuke Hiramatsu ,  Aoi Okada ,  Masahiro Kato

    IPC分类号： H01L33/50 ,  C09K11/77

    CPC分类号： H01L33/504 ,  C09K11/7721 ,  C09K11/7734 ,  H01L33/502

    摘要： A light-emitting device of an embodiment includes a light-emitting element emitting blue excitation light and a first phosphor excited by the blue excitation light and emitting fluorescence. A peak wavelength of the fluorescence is not shorter than 520 nm and shorter than 660 nm and the peak wavelength of the fluorescence shifting in the same direction when a peak wavelength of the blue excitation light shifts. The first phosphor is one of a yellow phosphor emitting yellow fluorescence, a green phosphor emitting green fluorescence, a yellow-green/yellow phosphor emitting yellow-green/yellow fluorescence and a red phosphor emitting red fluorescence.

    摘要翻译： 实施例的发光装置包括发射蓝色激发光的发光元件和由蓝色激发光激发并发射荧光的第一荧光体。 当蓝色激发光的峰值波长偏移时，荧光的峰值波长不小于520nm且小于660nm，并且荧光的峰值波长在相同方向上移动。 第一荧光体是发出黄色荧光的黄色荧光体，发出绿色荧光的绿色荧光体，发出黄绿色/黄色荧光物质的黄绿色/黄色荧光体和发出红色荧光物质的红色荧光体之一。

    Light emitting device
    8.
    发明授权
    Light emitting device 有权
    发光装置

    公开(公告)号：US09190582B2

    公开(公告)日：2015-11-17

    申请号：US14203982

    申请日：2014-03-11

    申请人： Kabushiki Kaisha Toshiba

    发明人： Yasushi Hattori ,  Masahiro Kato ,  Yumi Fukuda ,  Iwao Mitsuishi

    IPC分类号： H01L29/22 ,  H01L33/50 ,  C09K11/08 ,  H05B33/14 ,  C09K11/77 ,  H01L33/56 ,  H01L33/54

    CPC分类号： H01L33/504 ,  C09K11/0883 ,  C09K11/7721 ,  H01L33/507 ,  H01L33/54 ,  H01L33/56 ,  H01L2224/45144 ,  H01L2224/48091 ,  H05B33/14 ,  Y02B20/181 ,  H01L2924/00014 ,  H01L2924/00

    摘要： A light emitting device according to embodiments includes a light emitting element emitting light having a peak wavelength of 425 nm or more and 465 nm or less, a first phosphor emitting light having a peak wavelength of 485 nm or more and 530 nm or less, a second phosphor emitting light having a peak wavelength longer than that of the first phosphor, and a third phosphor emitting light having a peak wavelength longer than that of the second phosphor. Then, when the peak wavelength of the light emitting element is λ0 (nm) and the peak wavelength of the first phosphor is λ1 (nm), a relation of 30≦λ1−λ0≦70 is satisfied.

    摘要翻译： 根据实施例的发光器件包括发射具有425nm以上且465nm以下的峰值波长的光的发光元件，具有485nm以上且530nm以下的峰值波长的第一荧光体发射光， 第二荧光体发射具有比第一荧光体长的峰值波长的光，以及发射具有比第二荧光体的波长更长的峰值波长的光的第三荧光体。 然后，当发光元件的峰值波长为λ0（nm）且第一荧光体的峰值波长为λ1（nm）时，满足30＆lt; lE;λ1-λ0＆nlE; 70的关系。