公开(公告)号：US20190186711A1

公开(公告)日：2019-06-20

申请号：US16309111

申请日：2017-06-09

Applicant: OSRAM SYLVANIA Inc. ,  OSRAM GmbH

Inventor： Alan Lenef ,  Angela Eberhardt ,  Florian Peskoller ,  David Johnston ,  Jöerg Sorg ,  James Avallon ,  John Kelso ,  Madis Raukas ,  Joachim Wirth-Schön ,  Dennis Sprenger

IPC: F21V7/30

CPC classification number: F21V7/30 ,  F21Y2115/30 ,  G03B21/204

Abstract: Techniques for bonding a luminescent material to a thermally conductive substrate using a low temperature glass to provide a wavelength converter system are provided. A dichroic coating is deposited on a thermally conductive substrate. The dichroic coating includes alternating layers of a first material having a first refractive index and a second material having a second refractive index which is greater than the first refractive index. A buffer layer is deposited on the dichroic coating. A wavelength converter is bonded to the buffer layer by a layer of low temperature glass. In some embodiments, the wavelength converter includes a phosphor for converting a primary light from an excitation source into a secondary light.

公开(公告)号：US20170015901A1

公开(公告)日：2017-01-19

申请号：US15113239

申请日：2015-01-26

Applicant: OSRAM SYLVANIA INC. ,  OSRAM GMBH

Inventor： Alan Lenef ,  James Avallon ,  John Kelso ,  Maxim Tchoul ,  Yi Zheng ,  Oliver Mehl ,  Peter Hoehmann ,  Markus Stange ,  Tobias Gleitsmann

IPC: C09K11/77 ,  C04B37/02 ,  G03B21/20 ,  C08K3/22 ,  G02B7/00 ,  H01S3/00 ,  C09K11/08 ,  C09J183/04

CPC classification number: C09K11/7774 ,  C04B37/028 ,  C04B2237/16 ,  C04B2237/343 ,  C04B2237/36 ,  C04B2237/40 ,  C04B2237/708 ,  C08K3/22 ,  C08K2003/2296 ,  C09J183/04 ,  C09J2205/102 ,  C09K11/0883 ,  C09K11/7734 ,  G02B7/008 ,  G03B21/204 ,  H01S3/005 ,  H01S5/005 ,  H01S5/32341

Abstract: There is herein described a ceramic phosphor target which may be used in a laser-activated remote phosphor application. The target comprises a substantially flat ceramic phosphor converter comprised of a photoluminescent polycrystalline ceramic which is attached to a reflective metal substrate by a high thermal conductivity adhesive.

Abstract translation: 这里描述了可用于激光激活的远程荧光体应用中的陶瓷荧光体靶。 目标包括由光致发光多晶陶瓷组成的基本平坦的陶瓷荧光转换器，该陶瓷荧光转换器通过高导热性粘合剂附着到反射金属基底上。

公开(公告)号：US20180026168A1

公开(公告)日：2018-01-25

申请号：US15546909

申请日：2016-02-12

Applicant: OSRAM SYLVANIA Inc.

Inventor： Alan Lenef ,  David Hamby ,  James Avallon

IPC: H01L33/60 ,  H01L33/56 ,  H01L25/075

CPC classification number: H01L33/60 ,  H01L25/0753 ,  H01L33/56 ,  H01L2933/0091

Abstract: There is herein described a light source that homogenizes the light produced by a large area array of forward directed LEDs mounted on highly reflective substrate, while achieving a low-profile form factor and maintaining high efficacy. The LED light source employs a diffuser comprised of two diffusing layers: a low scattering diffusing layer bonded to the LEDs and a high scattering diffusing layer that is bonded to the low scattering diffusing layer. The LED light source achieves good diffuse illumination with a thin diffuser by making use of a light channeling effect between the highly reflective substrate and the high backscattering from the high scattering diffusing layer.

公开(公告)号：US20160334552A1

公开(公告)日：2016-11-17

申请号：US15112487

申请日：2015-01-26

Applicant: OSRAM SYLVANIA INC.

Inventor： Alan Lenef ,  James Avallon ,  Adam Scotch

IPC: G02B5/08 ,  H01L33/60 ,  C04B37/02 ,  C09K11/77 ,  C09K11/08 ,  H01L33/50 ,  G02B7/18

CPC classification number: G02B5/0858 ,  C04B37/026 ,  C04B2237/062 ,  C04B2237/121 ,  C04B2237/125 ,  C04B2237/343 ,  C04B2237/407 ,  C04B2237/708 ,  C04B2237/72 ,  C09K11/0883 ,  C09K11/7734 ,  C09K11/7774 ,  G02B7/1815 ,  H01L33/505 ,  H01L33/60

Abstract: There is herein described a ceramic wavelength converter having a high reflectivity reflector. The ceramic wavelength converter is capable of converting a primary light into a secondary light and the reflector comprises a reflective metal layer and a dielectric buffer layer between the ceramic wavelength converter and the reflective metal layer. The buffer layer is non-absorbing with respect to the secondary light and has an index of refraction that is less than an index of refraction of the ceramic wavelength converter. Preferably the reflectivity of the reflector is at least 80%, more preferably at least 85% and even more preferably at least 95% with respect to the secondary light emitted by the converter.

Abstract translation: 这里描述了具有高反射率反射器的陶瓷波长转换器。 陶瓷波长转换器能够将一次光转换成二次光，反射器包括反射金属层和陶瓷波长转换器与反射金属层之间的介质缓冲层。 缓冲层相对于次级光不吸收，并且具有小于陶瓷波长转换器的折射率的折射率。 优选地，反射器的反射率相对于由转换器发射的次级光是至少80％，更优选至少85％，甚至更优选至少95％。