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    Light emitting device
    1.
    发明授权
    Light emitting device 有权
    发光装置

    公开(公告)号：US08921878B2

    公开(公告)日：2014-12-30

    申请号：US13214572

    申请日：2011-08-22

    申请人： Iwao Mitsuishi ,  Kunio Ishida ,  Yumi Fukuda ,  Aoi Okada ,  Naotoshi Matsuda ,  Keiko Albessard ,  Shinya Nunoue ,  Masahiro Kato

    发明人： Iwao Mitsuishi ,  Kunio Ishida ,  Yumi Fukuda ,  Aoi Okada ,  Naotoshi Matsuda ,  Keiko Albessard ,  Shinya Nunoue ,  Masahiro Kato

    IPC分类号： H01L33/00 ,  H01J1/62 ,  H01L33/50 ,  C09K11/08 ,  C09K11/77 ,  H01L33/44 ,  H01L33/54 ,  H01L33/56

    CPC分类号： H01L33/504 ,  C09K11/0883 ,  C09K11/7734 ,  H01L33/44 ,  H01L33/505 ,  H01L33/507 ,  H01L33/54 ,  H01L33/56 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2924/00014 ,  H01L2924/00

    摘要： A light emitting device according to one embodiment includes a board; a light emitting element mounted on the board, emitting light having a wavelength of 250 nm to 500 nm; a red fluorescent layer formed on the element, including a red phosphor expressed by equation (1), having a semicircular shape with a diameter r; (M1−x1Eux1)aSibAlOcNd  (1) (In the equation (1), M is an element that is selected from IA group elements, IIA group elements, IIIA group elements, IIIB group elements except Al (Aliminum), rare-earth elements, and IVB group elements),an intermediate layer formed on the red fluorescent layer, being made of transparent resin, having a semicircular shape with a diameter D; and a green fluorescent layer formed on the intermediate layer, including a green phosphor, having a semicircular shape. A relationship between the diameter r and the diameter D satisfies equation (2): 2.0r(μm)≦D≦(r+1000)(μm).  (2)

    摘要翻译： 根据一个实施例的发光器件包括板; 安装在所述板上的发光元件，发射波长为250nm至500nm的光; 形成在元件上的红色荧光层，包括由等式（1）表示的具有直径为r的半圆形形状的红色荧光体; （M1-x1Eux1）aSibAlOcNd（1）（在式（1）中，M是选自IA族元素，IIA族元素，IIIA族元素，Al（Aliminum）以外的IIIB族元素，稀土元素 和IVB族元素），形成在红色荧光层上的由透明树脂制成的具有直径D的半圆形状的中间层; 以及形成在具有半圆形状的绿色荧光体的中间层上形成的绿色荧光体层。 直径r和直径D之间的关系满足式（2）：2.0r（μm）＆nlE; D＆nlE;（r + 1000）（μm）。 （2）

    WHITE LIGHT EMITTING DEVICE
    3.
    发明申请
    WHITE LIGHT EMITTING DEVICE 审中-公开
    白光发光装置

    公开(公告)号：US20130234591A1

    公开(公告)日：2013-09-12

    申请号：US13677675

    申请日：2012-11-15

    申请人： Yasushi Hattori ,  Naotoshi Matsuda ,  Kunio Ishida ,  Aoi Okada ,  Ryosuke Hiramatsu ,  Masahiro Kato ,  Iwao Mitsuishi

    发明人： Yasushi Hattori ,  Naotoshi Matsuda ,  Kunio Ishida ,  Aoi Okada ,  Ryosuke Hiramatsu ,  Masahiro Kato ,  Iwao Mitsuishi

    IPC分类号： H05B33/12 ,  H05B33/04

    CPC分类号： H05B33/12 ,  H01L33/504 ,  H01L33/505 ,  H01L33/507 ,  H01L2224/48091 ,  H05B33/04 ,  H01L2924/00014

    摘要： A white light emitting device of an embodiment includes: a light emitting element having a peak wavelength in a wavelength range from 430 to 470 nm both inclusive, a first fluorescent material formed over the light emitting element, and emitting light having a first peak wavelength of 530 to 580 nm both inclusive and having a first half width, and a second fluorescent material formed over the light emitting element, and emitting light having a second peak wavelength that is longer than the first peak wavelength and ranges from 570 to 620 nm both inclusive, and having a second half width that is 100 nm or less and is equal to or narrower than the first half width.

    摘要翻译： 实施方式的白色发光装置包括：发光元件，具有波长范围为430〜470nm的波长的发光元件，形成在发光元件上方的第一荧光体，发光元件的第一峰值波长 530〜580nm，具有第一半宽度，以及形成在发光元件上的第二荧光材料，并且发射具有比第一峰值波长长的第二峰值波长的光，并且其范围为570-620nm，包括 并且具有100nm或更小的第二半宽度并且等于或小于第一半宽度。

    WHITE LIGHT EMITTING DEVICE
    4.
    发明申请
    WHITE LIGHT EMITTING DEVICE 有权
    白光发光装置

    公开(公告)号：US20130234584A1

    公开(公告)日：2013-09-12

    申请号：US13597808

    申请日：2012-08-29

    申请人： Yasushi HATTORI ,  Aoi Okada ,  Ryosuke Hiramatsu ,  Kunio Ishida ,  Masahiro Kato

    发明人： Yasushi HATTORI ,  Aoi Okada ,  Ryosuke Hiramatsu ,  Kunio Ishida ,  Masahiro Kato

    IPC分类号： H05B33/12

    CPC分类号： H05B33/12 ,  C09K11/7734 ,  H01L33/504 ,  H01L33/507 ,  H01L2224/45144 ,  H01L2224/48091 ,  Y02B20/181 ,  H01L2924/00014 ,  H01L2924/00

    摘要： A white light emitting device according to an embodiment includes: a light emitting element having a peak wavelength in a wavelength range of 430 nm or more and 470 nm or less; a first fluorescent material emits light with a first peak wavelength of 525 nm or more and 560 nm or less; a second fluorescent material emits light with a second peak wavelength longer than the first peak wavelength; and a third fluorescent material emits light with a third peak wavelength of 620 nm or more and 750 nm or less, which is longer than the second peak wavelength. The first fluorescent material and the second fluorescent material has a composition of MSiαOβNγ, and when the first peak wavelength is denoted by λ1 (nm), whereas the second peak wavelength is denoted by λ2 (nm), 1100≦λ1+λ2 and λ2−λ1≦60 are satisfied.

    摘要翻译： 根据实施例的白色发光器件包括：具有波长范围在430nm以上且470nm以下的峰值波长的发光元件; 第一荧光体发射具有525nm以上且560nm以下的第一峰值波长的光; 第二荧光材料发射具有比第一峰值波长长的第二峰值波长的光; 并且第三荧光材料发射比第二峰值波长长的具有620nm以上且750nm以下的第三峰值波长的光。 第一荧光材料和第二荧光材料具有MSialphaObetaNgamma的组成，并且当第一峰值波长由λ1（nm）表示时，而第二峰值波长由λ2（nm）表示，1100≤λ1+λ2和λ2- lambda1 @ 60满足。

    FLUORESCENT SUBSTANCE AND LIGHT-EMITTING DEVICE EMPLOYING THE SAME
    7.
    发明申请
    FLUORESCENT SUBSTANCE AND LIGHT-EMITTING DEVICE EMPLOYING THE SAME 审中-公开
    使用其的荧光物质和发光装置

    公开(公告)号：US20120230010A1

    公开(公告)日：2012-09-13

    申请号：US13239578

    申请日：2011-09-22

    申请人： Masahiro KATO ,  Yumi Fukuda ,  Aoi Okada

    发明人： Masahiro KATO ,  Yumi Fukuda ,  Aoi Okada

    IPC分类号： F21V9/16 ,  C09K11/79

    CPC分类号： C09K11/7734 ,  H01L33/504 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2924/181 ,  H01L2924/00012 ,  H01L2924/00014 ,  H01L2924/00

    摘要： The embodiment provides a green light-emitting fluorescent substance having high quantum efficiency and also a light-emitting device comprising that substance so as to less undergo color discrepancies. The fluorescent substance is generally represented by (Sr1−xEux)3−yAl3+zSi13−zO2+uN21−w, and is a kind of the Sr3Al3Si13O2N21 phosphors. This substance also gives an X-ray diffraction pattern having a diffraction peak at 2θ of 15.2 to 15.5° and the half-width thereof is 0.14° or less. Further, the substance emits luminescence having a peak within 490 to 580 nm when excited by light of 250 to 500 nm. The light-emitting device provided by the embodiment comprises that substance in combination with a light-emitting element and a red light-emitting fluorescent substance.

    摘要翻译： 本实施方案提供了具有高量子效率的绿色发光荧光物质，并且还提供了包含该物质以减少色差的发光装置。 荧光物质通常由（Sr1-xEux）3-yAl3 + zSi13-zO2 + uN21-w表示，并且是Sr3Al3Si13O2N21荧光体的一种。 该物质还给出了在2θ处具有衍射峰的X射线衍射图; 为15.2〜15.5°，半值宽度为0.14°以下。 此外，当由250〜500nm的光激发时，该物质发射具有在490〜580nm内的峰值的发光。 由该实施方式提供的发光装置包含与发光元件和红色发光荧光物质组合的物质。

    LIGHT EMITTING DEVICE
    9.
    发明申请
    LIGHT EMITTING DEVICE 有权
    发光装置

    公开(公告)号：US20120056225A1

    公开(公告)日：2012-03-08

    申请号：US13214572

    申请日：2011-08-22

    申请人： Iwao MITSUISHI ,  Kunio Ishida ,  Yumi Fukuda ,  Aoi Okada ,  Naotoshi Matsuda ,  Keiko Albessard ,  Shinya Nunoue ,  Masahiro Kato

    发明人： Iwao MITSUISHI ,  Kunio Ishida ,  Yumi Fukuda ,  Aoi Okada ,  Naotoshi Matsuda ,  Keiko Albessard ,  Shinya Nunoue ,  Masahiro Kato

    IPC分类号： H01L33/50

    CPC分类号： H01L33/504 ,  C09K11/0883 ,  C09K11/7734 ,  H01L33/44 ,  H01L33/505 ,  H01L33/507 ,  H01L33/54 ,  H01L33/56 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2924/00014 ,  H01L2924/00

    摘要： A light emitting device according to one embodiment includes a board; a light emitting element mounted on the board, emitting light having a wavelength of 250 nm to 500 nm; a red fluorescent layer formed on the element, including a red phosphor expressed by equation (1), having a semicircular shape with a diameter r; (M1−x1Eux1)aSibAlOcNd  (1) (In the equation (1), M is an element that is selected from IA group elements, IIA group elements, IIIA group elements, IIIB group elements except Al (Aliminum), rare-earth elements, and IVB group elements),an intermediate layer formed on the red fluorescent layer, being made of transparent resin, having a semicircular shape with a diameter D; and a green fluorescent layer formed on the intermediate layer, including a green phosphor, having a semicircular shape. A relationship between the diameter r and the diameter D satisfies equation (2): 2.0r(μm)≦D≦(r+1000)(μm).  (2)

    摘要翻译： 根据一个实施例的发光器件包括板; 安装在所述板上的发光元件，发射波长为250nm至500nm的光; 形成在元件上的红色荧光层，包括由等式（1）表示的具有直径为r的半圆形形状的红色荧光体; （M1-x1Eux1）aSibAlOcNd（1）（在式（1）中，M是选自IA族元素，IIA族元素，IIIA族元素，Al（Aliminum）以外的IIIB族元素，稀土元素 和IVB族元素），形成在红色荧光层上的由透明树脂制成的具有直径D的半圆形状的中间层; 以及形成在具有半圆形状的绿色荧光体的中间层上形成的绿色荧光体层。 直径r和直径D之间的关系满足式（2）：2.0r（μm）＆nlE; D＆nlE;（r + 1000）（μm）。 （2）