公开(公告)号：US12122140B2

公开(公告)日：2024-10-22

申请号：US17642999

申请日：2020-09-21

申请人： Covestro Intellectual Property GmbH & Co. KG

发明人： Torsten Thust ,  Thorsten Schulz ,  Rainer Hagen ,  Ciro Piermatteo ,  Marius Rogowski ,  Armin Berger ,  Jan Helmig

IPC分类号： B32B9/04 ,  B32B1/00 ,  B32B7/023 ,  B32B9/00 ,  B32B27/20 ,  B32B27/36 ,  F21V8/00 ,  F21V33/00 ,  F21Y113/17 ,  F21Y115/10

CPC分类号： B32B9/045 ,  B32B1/00 ,  B32B7/023 ,  B32B9/002 ,  B32B27/20 ,  B32B27/365 ,  F21V33/00 ,  G02B6/0051 ,  G02B6/0065 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2255/28 ,  B32B2264/02 ,  B32B2264/108 ,  B32B2264/12 ,  B32B2307/3065 ,  B32B2307/4026 ,  B32B2307/412 ,  B32B2307/414 ,  B32B2307/538 ,  B32B2307/732 ,  B32B2419/04 ,  B32B2457/00 ,  B32B2479/00 ,  B32B2509/00 ,  B32B2605/003 ,  B32B2607/02 ,  F21Y2113/17 ,  F21Y2115/10

摘要： A lighting unit which includes a multilayer body and at least a first light emitting diode (LED) light source. The multilayer body includes, in sequence, a carrier layer of a black or gray translucent thermoplastic composition, a stone layer with an average thickness of 2 mm of less, and a transparent thermoplastic layer with an average thickness of 1 mm to 6 mm. The LED light source is disposed facing at least one lateral edge of the transparent thermoplastic layer, such that light from the LED light source is guided within the transparent thermoplastic layer.