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：US20180171508A1

公开(公告)日：2018-06-21

申请号：US15572486

申请日：2016-04-28

Applicant: OSRAM SYLVANIA Inc.

Inventor： John Kelso ,  Alan Piquette ,  David Johnston

IPC: C30B29/28 ,  C30B29/40 ,  C30B1/02 ,  H01L33/50

CPC classification number: C30B29/28 ,  C04B35/16 ,  C04B35/44 ,  C04B35/581 ,  C04B35/584 ,  C04B35/587 ,  C04B35/597 ,  C04B35/64 ,  C04B2235/3203 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3229 ,  C04B2235/3418 ,  C04B2235/6021 ,  C04B2235/6022 ,  C04B2235/6025 ,  C04B2235/6027 ,  C04B2235/604 ,  C04B2235/6582 ,  C04B2235/764 ,  C09K11/7721 ,  C09K11/7774 ,  C30B1/02 ,  C30B29/34 ,  C30B29/38 ,  C30B29/406 ,  H01L33/502 ,  H01L2933/0041

Abstract: There is herein described a method of making a single crystal wavelength conversion element from a polycrystalline wavelength conversion element, a single crystal wavelength conversion element, and a light source containing same. By making the single crystal wavelength conversion element from a polycrystalline wavelength conversion element, the method provides greater flexibility in creating single crystal wavelength conversion elements as compared to melt grown methods for forming single crystals. Advantages may include higher activator contents, forming more complex shapes without machining, providing a wider range of possible activator gradients and higher growth rates at lower temperatures.

公开(公告)号：US20150267052A1

公开(公告)日：2015-09-24

申请号：US14430981

申请日：2013-09-27

Applicant: OSRAM SYLVANIA INC.

Inventor： Maxim Tchoul ,  Maria Anc ,  David Johnston

IPC: C08L83/04 ,  H01L33/56 ,  H01L33/50 ,  H01L33/58

CPC classification number: C08L83/04 ,  C08G77/12 ,  C08G77/20 ,  C08L2203/206 ,  H01L33/502 ,  H01L33/507 ,  H01L33/56 ,  H01L33/58 ,  C08L83/00

Abstract: The present disclosure describes the use of a polycyclic polysiloxane polymer for light emitting diodes (LEDs). The polymer is characterized by high flame retardancy, high temperature stability, and low moisture and gas permeability. The polymer is useful as a potting compound for encapsulation of phosphors in LED packages, or as a molding resin for producing optical parts for LED light engines, or as a protective coating applied over the light emitting elements.

Abstract translation: 本公开描述了多环聚硅氧烷聚合物在发光二极管（LED）中的用途。 该聚合物的特征在于阻燃性高，温度稳定性好，水分和透气性低。 聚合物可用作用于将LED封装中的磷光体封装的封装化合物，或用作生产用于LED光引擎的光学部件的模制树脂，或用作施加在发光元件上的保护涂层。