公开(公告)号：US20230392768A1

公开(公告)日：2023-12-07

申请号：US17887939

申请日：2022-08-15

申请人： DICON FIBEROPTICS, INC.

发明人： Jeffrey B. Lee ,  Tai-Chi Chu ,  Yen-Chih Liu ,  Ho-Shang Lee

IPC分类号： F21V5/00 ,  F21V5/04

CPC分类号： F21V5/007 ,  F21V5/04

摘要： A highly efficient light extraction system for LED chip arrays, in which a multi-function domed lens overlays the LED chip array. A lower portion of the multi-function domed lens acts as a reflector, capturing wide-angle light emitted by the LED chips. An upper portion of the multi-function domed lens provides the function of a refractive lens. The multi-function domed lens provides improved light extraction efficiency over prior art embodiments, greater total light output, as well as a narrower light distribution pattern, with increased light intensity at the center of the beam.