公开(公告)号：US20070120135A1

公开(公告)日：2007-05-31

申请号：US10525697

申请日：2003-08-29

申请人： Thomas Soules ,  Stanton Weaver ,  Chen-Lun Chen ,  Mathew Sommers ,  Boris Kolodin ,  Anan Setlur ,  Thomas Stecher

发明人： Thomas Soules ,  Stanton Weaver ,  Chen-Lun Chen ,  Mathew Sommers ,  Boris Kolodin ,  Anan Setlur ,  Thomas Stecher

IPC分类号： H01L33/00 ,  H01L29/22 ,  H01L29/227

CPC分类号： H01L33/58 ,  F21K9/64 ,  H01L33/44 ,  H01L33/507 ,  H01L2224/48091 ,  H01L2924/00014

摘要： An LED device including an LED chip and a lens positioned apart from the chip and coated with a uniform thickness layer of fluorescent phosphor for converting at least some of the radiation emitted by the chip into visible light. Positioning the phosphor layer away from the LED improves the efficiency of the device and produces more consistent color rendition. The surface area of the lens is preferably at least ten times the surface area of the LED chip. For increased efficiency, the reflector and submount can also be coated with phosphor to further reduce internal absorption.

摘要翻译： 一种LED装置，包括LED芯片和与芯片分离并且涂覆有均匀厚度的荧光荧光粉层的透镜，用于将由芯片发射的至少一些辐射转换成可见光。 将荧光体层定位在远离LED的位置，提高了器件的效率，并产生更一致的色彩再现。 透镜的表面积优选为LED芯片的表面积的至少十倍。 为了提高效率，反射器和底座也可以涂覆磷光体，以进一步减少内部吸收。