公开(公告)号：US09157605B2

公开(公告)日：2015-10-13

申请号：US13995998

申请日：2012-01-16

申请人： Said Rahimzadeh Kalaeh Rodriguez ,  Jaime Gomez Rivas ,  Abraham Rudolf Balkenende ,  Marcus Antonius Verschuuren ,  Gabriel Sebastian Lozano Barbero ,  Shunsuke Murai

发明人： Said Rahimzadeh Kalaeh Rodriguez ,  Jaime Gomez Rivas ,  Abraham Rudolf Balkenende ,  Marcus Antonius Verschuuren ,  Gabriel Sebastian Lozano Barbero ,  Shunsuke Murai

IPC分类号： F21V9/08 ,  H01L33/50 ,  H01L33/58 ,  C09K11/56 ,  C09K11/88 ,  C09K11/77 ,  F21V9/16 ,  G03B21/20 ,  F21Y101/02

CPC分类号： F21K9/64 ,  C09K11/0883 ,  C09K11/56 ,  C09K11/676 ,  C09K11/7734 ,  C09K11/7769 ,  C09K11/7774 ,  C09K11/883 ,  F21K9/60 ,  F21K9/62 ,  F21V9/08 ,  F21V9/30 ,  F21Y2101/00 ,  F21Y2115/10 ,  F21Y2115/30 ,  G02B5/008 ,  G02B5/18 ,  G03B21/204 ,  H01L33/50 ,  H01L33/502 ,  H01L33/58

摘要： Proposed is an illumination device (100), comprising a light source (110) such as an LED or a laser diode, a wavelength conversion medium (120) such as a phosphor, and a periodic antenna array (300) made of a highly polarisable material such as a metal. The light source emits primary wavelength light that at least partially is converted in secondary wavelength light by the wavelength conversion medium. The periodic antenna array is positioned in close proximity to the wavelength conversion medium and functions to enhance the efficiency of the absorption and/or emission processes in the wavelength conversion medium through the coupling of the incident primary wavelength light or the emitted secondary light to surface lattice resonances that arise from the diffractive coupling of localized surface plasmon polaritons in the individual antennas of the array. This is especially advantageous for forming low étendue illumination device suitable for use in projection systems, or for controlling the directionality, the polarization, and/or the color of the secondary wavelength light.

摘要翻译： 提出了一种照明装置（100），包括诸如LED或激光二极管的光源（110），诸如磷光体的波长转换介质（120）和由高度极化的周期性天线阵列（300） 材料如金属。 光源发射至少部分地通过波长转换介质在次级波长光中转换的主波长光。 周期性天线阵列定位成紧邻波长转换介质，并且通过将入射的主波长光或发射的次级光耦合到表面晶格来增强波长转换介质中的吸收和/或发射过程的效率 由阵列的各个天线中局部表面等离子体激元的衍射耦合产生的共振。 这对于形成适用于投影系统的低照度装置或用于控制次级波长光的方向性，偏振度和/或颜色特别有利。