公开(公告)号：US20160079484A1

公开(公告)日：2016-03-17

申请号：US14853311

申请日：2015-09-14

Applicant: NICHIA CORPORATION

Inventor： Shoji HOSOKAWA ,  Daiki KURAMOTO ,  Kenji NAKATA ,  Atsushi BANDO

IPC: H01L33/50 ,  H01L33/52

CPC classification number: H01L33/502 ,  H01L21/56 ,  H01L23/29 ,  H01L23/295 ,  H01L31/0203 ,  H01L33/501 ,  H01L33/508 ,  H01L33/52 ,  H01L33/56 ,  H01L2924/01015 ,  H01L2924/0106 ,  H01L2924/181 ,  H01L2924/186

Abstract: A light emitting device includes a light emitting element, a molded member, and a sealing member. The light emitting element is arranged on or above the molded member. The sealing member covers the light emitting element. The sealing member contains a phosphor, and a filler material. The phosphor can be excited by light of the light emitting element, and emit luminescent radiation. The filler material contains neodymium hydroxide, neodymium aluminate or neodymium silicate. The filler material absorbs a part of the spectrum of the mixed light of the light emitting element and the phosphor so that the other parts of the spectrum of this mixed light are extracted from the light emitting device.

Abstract translation: 发光装置包括发光元件，模制构件和密封构件。 发光元件布置在模制构件上或上方。 密封构件覆盖发光元件。 密封构件包含磷光体和填充材料。 荧光体可以被发光元件的光激发，并发出发光。 填充材料含有氢氧化钕，铝酸钕或硅酸钕。 填充材料吸收发光元件和荧光体的混合光的一部分光谱，使得该混合光的光谱的其它部分从发光器件中提取。

公开(公告)号：US20190013448A1

公开(公告)日：2019-01-10

申请号：US16027223

申请日：2018-07-03

Applicant: NICHIA CORPORATION

Inventor： Makoto NAKANO ,  Kenji NAKATA

IPC: H01L33/50 ,  C09K11/77 ,  C09K11/08 ,  C09K11/66

Abstract: A light emitting device, comprising a light emitting element having a peak emission wavelength in a range of from 440 nm to 460 nm, and a phosphor member. The phosphor member contains: a first phosphor having a peak emission wavelength in a range of from 440 nm to 550 nm and comprising at least one selected from the group consisting of an Eu-activated alkaline earth aluminate or an Eu-activated silicate containing Ca, Mg, and Cl; a second phosphor having a peak emission wavelength in a range of from 500 nm to 600 nm and comprising a Ce-activated rare earth aluminate; a third phosphor having a peak emission wavelength in a range of from 610 nm to 650 nm and comprising an Eu-activated silicon nitride containing Al and at least one selected from the group consisting of Sr and Ca; and a fourth phosphor having a peak emission wavelength in a range of from 650 nm to 670 nm and comprising a Mn-activated fluorogermanate.