- 专利标题: OPTOELECTRONIC SEMICONDUCTOR LIGHT SOURCE AND BRAGG MIRROR
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申请号: US16291679申请日: 2019-03-04
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公开(公告)号: US20200284401A1公开(公告)日: 2020-09-10
- 发明人: Alan Lenef , David Klotzkin , Xin Wen
- 申请人: OSRAM Opto Semiconductors GmbH , The Research Foundation for State University of New York
- 主分类号: F21K9/68
- IPC分类号: F21K9/68 ; H01L33/60 ; H01L33/50 ; F21K9/64 ; H01S5/022 ; H01L33/48 ; F21V7/26
摘要:
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/授权文献
- US10808893B2 Optoelectronic semiconductor light source and Bragg mirror 公开/授权日:2020-10-20
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