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公开(公告)号：US20230086879A1
公开(公告)日：2023-03-23
申请号：US17483514
申请日：2021-09-23
发明人： Darshan Kundaliya , Alan Lenef , Thomas Dreeben
IPC分类号： H01L33/58 , H01L33/50 , H01L33/60 , H01S5/02257
摘要： In an embodiment a semiconductor light source includes an optoelectronic semiconductor chip configured to emit radiation and a cover body arranged on the optoelectronic semiconductor chip, wherein the cover body comprises a light-transmissive base body, wherein the light-transmissive base body comprises a plurality of recesses with inclined side faces, the recesses start at an emission side of the light-transmissive base body remote from the optoelectronic semiconductor chip and narrow towards the optoelectronic semiconductor chip, wherein a mirror coating is provided at top regions of the recesses next to the emission side, and wherein bottom regions of the recesses closest to the optoelectronic semiconductor chip are free of the mirror coating.
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公开(公告)号：US11069841B2
公开(公告)日：2021-07-20
申请号：US16406950
申请日：2019-05-08
发明人： Thomas Dreeben , Zhengbo Yu , Alan Lenef
IPC分类号： H01L33/50
摘要： A multilayer ceramic converter with stratified scattering is disclosed. In an embodiment a ceramic wavelength converter assembly having a layered structure includes a phosphor layer, an upper barrier layer, and a lower barrier layer, wherein the phosphor layer is at least partially disposed between the upper barrier layer and the lower barrier layer.
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公开(公告)号：US10662310B2
公开(公告)日：2020-05-26
申请号：US15960739
申请日：2018-04-24
发明人： Maxim N. Tchoul , Thomas Dreeben , Adam Scotch , Alan Piquette , Gertrud Kräuter , Darshan Kundaliya
摘要： An optoelectronic component includes a semiconductor chip that is able to emit radiation having a wavelength of 400 nm to 490 nm, a conversion element including a reactive polysiloxane matrix material, a wavelength converting phosphor and filler nanoparticles, wherein the filler nanoparticles have a diameter of smaller than 15 nm and modify the refractive index and yield a mixture when added to the reactive polysiloxane matrix material.
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公开(公告)号：US20190322837A1
公开(公告)日：2019-10-24
申请号：US15960739
申请日：2018-04-24
发明人： Maxim N. Tchoul , Thomas Dreeben , Adam Scotch , Alan Piquette , Gertrud Kräuter , Darshan Kundaliya
摘要： An optoelectronic component includes a semiconductor chip that is able to emit radiation having a wavelength of 400 nm to 490 nm, a conversion element including a reactive polysiloxane matrix material, a wavelength converting phosphor and filler nanoparticles, wherein the filler nanoparticles have a diameter of smaller than 15 nm and modify the refractive index and yield a mixture when added to the reactive polysiloxane matrix material.
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