公开(公告)号：US20200284401A1

公开(公告)日：2020-09-10

申请号：US16291679

申请日：2019-03-04

Applicant: OSRAM Opto Semiconductors GmbH ,  The Research Foundation for State University of New York

Inventor： Alan Lenef ,  David Klotzkin ,  Xin Wen

IPC: F21K9/68 ,  H01L33/60 ,  H01L33/50 ,  F21K9/64 ,  H01S5/022 ,  H01L33/48 ,  F21V7/26

Abstract: An optoelectronic semiconductor light source includes a semiconductor chip configured to emit primary radiation, a Bragg mirror, and a luminescence conversion element configured to convert at least part of the primary radiation into secondary radiation having a longer wavelength, wherein the Bragg mirror is arranged between the semiconductor chip and the luminescence conversion element, the Bragg mirror is reflective for the secondary radiation and transmissive for the primary radiation, the Bragg mirror includes reflector layers of at least three different materials with different refractive indices, the Bragg mirror includes at least two different kinds of layer pairs, each kind of layer pairs being made up of reflective layers of two different materials, and the different kinds of layer pairs having different Brewster angles for p-polarized radiation.

公开(公告)号：US20200052168A1

公开(公告)日：2020-02-13

申请号：US16101168

申请日：2018-08-10

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Jörg Erich Sorg ,  Roland Schulz ,  Florian Peskoller ,  Alan Lenef ,  Christopher Tarry ,  Yi Zheng

IPC: H01L33/50 ,  H01L33/60 ,  H01S5/06

Abstract: A converter for an optoelectronic component, an optoelectronic component, a method for forming a converter for an optoelectronic component and a material for a reflector of an optoelectronic component are disclosed. In an embodiment, a converter includes a conversion element for converting a wavelength of electromagnetic radiation which passes through at least a part of the conversion element and a reflector, wherein the reflector includes a reflector material which includes MgF2 and/or an inorganic material as a matrix material in which a plurality of particles is embedded, wherein a refractive index of the matrix material amounts to at least 1 and at most 2, and wherein a refractive index of the particles amounts to at least 1.5.