公开(公告)号：US09719662B1

公开(公告)日：2017-08-01

申请号：US14878436

申请日：2015-10-08

Applicant: Universal Lighting Technologies, Inc.

Inventor： John R. Householder ,  Peter A. Phillips, Jr.

IPC: F21V13/04 ,  F21V5/04 ,  G02B17/00 ,  F21S8/04 ,  F21V7/00 ,  F21Y103/00

CPC classification number: F21V13/04 ,  F21S4/28 ,  F21S8/00 ,  F21S8/026 ,  F21S8/04 ,  F21V5/045 ,  F21V7/0033 ,  F21V7/005 ,  F21V7/0066 ,  F21V7/0091 ,  F21V13/12 ,  F21V15/015 ,  F21Y2101/00 ,  F21Y2103/003 ,  F21Y2103/10 ,  F21Y2115/10 ,  G02B17/006

Abstract: A lighting apparatus includes a light source located on a centerline, a light redirecting lens positioned to receive light from the light source, and an outer reflector that receives light redirected by the redirecting lens. The redirecting lens includes an inner reflecting portion that includes a total internal reflection (TIR) surface that reflects light outward to an outer refracting portion. The outer refracting portion of the redirecting lens refracts the light outward and away from the position of the light source. The outer reflector receives the refracted light and reflects the inward toward the centerline and farther away from the light source. The lighting apparatus further includes a diffuser that diffuses the light from the outer reflector. The lighting apparatus may be configured longitudinally or may be configured to be rotationally symmetrical with respect to the centerline.