公开(公告)号：WO2012106282A1

公开(公告)日：2012-08-09

申请号：PCT/US2012/023222

申请日：2012-01-31

Applicant: OSRAM SYLVANIA Inc. ,  KUNDALIYA, Darshan ,  SCOTCH, Adam M. ,  RAUKAS, Madis ,  HAMBY, David ,  MISHRA, Kalish ,  STOUGH, Matthew

Inventor： KUNDALIYA, Darshan ,  SCOTCH, Adam M. ,  RAUKAS, Madis ,  HAMBY, David ,  MISHRA, Kalish ,  STOUGH, Matthew

IPC: C09K11/77

CPC classification number: H01L33/502 ,  C09K11/7701 ,  C09K11/7721 ,  C09K11/7774 ,  C30B23/025 ,  C30B23/066 ,  C30B29/68 ,  Y10T428/24942

Abstract: A wavelength converter for an LED is described that comprises a substrate of monocrystalline garnet having a cubic crystal structure, a first lattice parameter and an oriented crystal face. An epitaxial layer is formed directly on the oriented crystal face of the substrate. The layer is comprised of a monocrystalline garnet phosphor having a cubic crystal structure and a second lattice parameter that is different from the first lattice parameter wherein the difference between the first lattice parameter and the second lattice parameter results in a lattice mismatch within a range of 15%. The strain induced in the phosphor layer by the lattice mismatch shifts the emission of the phosphor to longer wavelengths when a tensile strain is induced and to shorter wavelengths when a compressive strain is induced. Preferably, the wavelength converter is mounted on the light emitting surface of a blue LED to produce an LED light source.

Abstract translation: 描述了一种用于LED的波长转换器，其包括具有立方晶体结构的单晶石榴石基底，第一晶格参数和取向晶体面。 外延层直接形成在基板的取向晶面上。 该层由具有立方晶体结构的单晶石榴石荧光体和不同于第一晶格参数的第二晶格参数组成，其中第一晶格参数和第二晶格参数之间的差异导致在15的范围内的晶格失配 ％。 通过晶格失配在荧光体层中诱发的应变当诱发拉伸应变时将磷光体的发射移动到更长的波长，并且当产生压缩应变时将其发射到较短的波长。 优选地，波长转换器安装在蓝色LED的发光表面上以产生LED光源。

公开(公告)号：WO2013023026A1

公开(公告)日：2013-02-14

申请号：PCT/US2012/050090

申请日：2012-08-09

Applicant: OSRAM SYLVANIA INC. ,  WANG, Dongxue ,  STOUGH, Matthew, A. ,  ZACHAU, Martin

Inventor： WANG, Dongxue ,  STOUGH, Matthew, A. ,  ZACHAU, Martin

IPC: G02B6/00

CPC classification number: G02B6/0015 ,  G02B6/0035

Abstract: There is herein described a light engine (100) that emits a light. The light engine includes a light source (110), a light guide (130), a plurality of extraction optical elements (140), and a plurality of phosphors (150). The light guide (130) receives the light. The extraction optical elements (140) are on the surface of the light guide (130). The extraction optical elements (140) extract at least a portion of the light out of the light guide (130). The phosphors (150) are disposed on top of at least some of the extraction optical elements (140).

Abstract translation: 这里描述了发射光的光引擎（100）。 光引擎包括光源（110），光导（130），多个提取光学元件（140）和多个磷光体（150）。 光导（130）接收光。 提取光学元件（140）在导光体（130）的表面上。 提取光学元件（140）将光的至少一部分提取出导光体（130）。 磷光体（150）设置在至少一些提取光学元件（140）的顶部。

公开(公告)号：WO2008025723A1

公开(公告)日：2008-03-06

申请号：PCT/EP2007/058783

申请日：2007-08-23

Applicant: OSRAM OPTO SEMICONDUCTORS GMBH ,  OSRAM SYLVANIA INC. ,  ZHENG, Yi ,  BATEMAN, Bruce ,  STOUGH, Matthew A. ,  RAUKAS, Madis

Inventor： ZHENG, Yi ,  BATEMAN, Bruce ,  STOUGH, Matthew A. ,  RAUKAS, Madis

IPC: H01L33/00

CPC classification number: H01L33/50 ,  G02B5/28 ,  H01L33/46

Abstract: White-light efficiency from a light emitting diode is enhanced by recycling outwardly inwardly-penetrating light by application of a multi-layer, thin film filter between the LED die and the phosphor layer. This procedure increases the package extraction efficiency.

Abstract translation: 通过在LED管芯和荧光体层之间施加多层薄膜滤光片，通过再循环向外穿透的光来增强来自发光二极管的白光效率。 该过程提高了包装提取效率。