公开(公告)号：US20220174795A1

公开(公告)日：2022-06-02

申请号：US17674091

申请日：2022-02-17

申请人： Ecosense Lighting Inc.

发明人： MICHAEL R. KRAMES ,  TROY TROTTIER ,  FRANK M. STERANKA ,  WILLIAM D. HOUCK ,  ARPAN CHAKRABORTY

IPC分类号： H05B45/10 ,  H01L25/075 ,  H01L33/60 ,  H01L33/50 ,  H01L27/15 ,  F21K9/235 ,  F21V7/00 ,  F21V9/08 ,  F21V19/00 ,  F21V23/06 ,  H01L33/56

摘要： An optical device includes a light source with at least two radiation sources, and at least two layers of wavelength-modifying materials excited by the radiation sources that emit radiation in at least two predetermined wavelengths. Embodiments include a first plurality of n radiation sources configured to emit radiation at a first wavelength. The first plurality of radiation sources are in proximity to a second plurality of m of radiation sources configured to emit radiation at a second wavelength, the second wavelength being shorter than the first wavelength. The ratio between m and n is predetermined. The disclosed optical device also comprises at least two wavelength converting layers such that a first wavelength converting layer is configured to absorb a portion of radiation emitted by the second radiation sources, and a second wavelength converting layer configured to absorb a portion of radiation emitted by the second radiation sources.