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）

公开(公告)号：US20120056224A1

公开(公告)日：2012-03-08

申请号：US13214377

申请日：2011-08-22

申请人： Iwao MITSUISHI ,  Shinya Nunoue ,  Takahiro Sato ,  Yumi Fukuda ,  Aoi Okada ,  Naotoshi Matsuda ,  Toshiki Hikosaka ,  Keiko Albessard ,  Masahiro Kato

发明人： Iwao MITSUISHI ,  Shinya Nunoue ,  Takahiro Sato ,  Yumi Fukuda ,  Aoi Okada ,  Naotoshi Matsuda ,  Toshiki Hikosaka ,  Keiko Albessard ,  Masahiro Kato

IPC分类号： H01L33/50

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

摘要： A light emitting device according to one embodiment includes a light emitting element that emits light having a wavelength of 380 nm to 470 nm; a CASN first red phosphor that is disposed on the light emitting element; a sialon second red phosphor that is disposed on the light emitting element; and a sialon green phosphor that is disposed on the light emitting element.

摘要翻译： 根据一个实施例的发光器件包括发射波长为380nm至470nm的光的发光元件; 设置在发光元件上的CASN第一红色荧光体; 设置在发光元件上的赛隆第二红色磷光体; 以及设置在发光元件上的赛隆绿荧光体。

公开(公告)号：US20120056216A1

公开(公告)日：2012-03-08

申请号：US13214608

申请日：2011-08-22

申请人： Iwao MITSUISHI ,  Yumi FUKUDA ,  Aoi OKADA ,  Naotoshi MATSUDA ,  Shinya NUNOUE ,  Keiko ALBESSARD ,  Masahiro KATO

发明人： Iwao MITSUISHI ,  Yumi FUKUDA ,  Aoi OKADA ,  Naotoshi MATSUDA ,  Shinya NUNOUE ,  Keiko ALBESSARD ,  Masahiro KATO

IPC分类号： H01L27/15

CPC分类号： H01L25/0753 ,  C09K11/0883 ,  C09K11/7734 ,  G09F13/20 ,  H01L33/502 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2924/00014 ,  H01L2924/00

摘要： A light emitting device according to one embodiment includes: a board; plural first light emitting units each including a first light emitting element and a first fluorescent layer formed on the first light emitting element having a green phosphor; plural second light emitting units each including a second light emitting element and a second fluorescent layer formed on the second light emitting element having a red phosphor; the second fluorescent layers and the first fluorescent layers being separated in a non-contact manner with gas interposed there between; and plural third light emitting units each including a third light emitting element and a resin layer formed on the third light emitting element having neither a green phosphor nor the red phosphor, the third light emitting units being disposed between the first light emitting units and the second light emitting units.

摘要翻译： 根据一个实施例的发光器件包括：板; 多个第一发光单元，每个包括形成在具有绿色荧光体的第一发光元件上的第一发光元件和第一荧光层; 多个第二发光单元，每个包括形成在具有红色荧光体的第二发光元件上的第二发光元件和第二荧光层; 第二荧光层和第一荧光层以介于其间的气体以非接触方式分离; 以及多个第三发光单元，每个包括第三发光元件和形成在第三发光元件上的树脂层，其中没有绿色荧光体和红色荧光体，第三发光单元设置在第一发光单元和第二发光单元之间 发光单元。

公开(公告)号：US20120056209A1

公开(公告)日：2012-03-08

申请号：US13214444

申请日：2011-08-22

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

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

IPC分类号： H01L27/15

CPC分类号： H01L25/0753 ,  C09K11/0883 ,  C09K11/7734 ,  F21Y2105/10 ,  F21Y2105/12 ,  F21Y2113/10 ,  F21Y2115/10 ,  H01L33/502 ,  H01L33/64 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2924/00

摘要： A light emitting device according to one embodiment includes a board; plural first light emitting elements mounted on the board to emit light having a wavelength of 250 nm to 500 nm; plural second light emitting elements mounted on the board to emit light having a wavelength of 250 nm to 500 nm; a first fluorescent layer formed on each of the first light emitting elements, the first fluorescent layer including a first phosphor; and a second fluorescent layer formed on each of the second light emitting elements, the second fluorescent layer including a second phosphor. The second phosphor is higher than the first phosphor in luminous efficiency at 50° C., and is lower than the first phosphor in the luminous efficiency at 150° C.

摘要翻译： 根据一个实施例的发光器件包括板; 多个第一发光元件安装在板上以发射波长为250nm至500nm的光; 多个第二发光元件安装在板上以发射波长为250nm至500nm的光; 形成在每个第一发光元件上的第一荧光层，所述第一荧光层包括第一荧光体; 以及形成在每个第二发光元件上的第二荧光层，所述第二荧光层包括第二荧光体。 在50℃下，第二荧光体的发光效率高于第一荧光体，并且在150℃的发光效率下比第一荧光体低。