Patent · US Active

Element for manipulating light

US10472770B2 · kind B2 · utility

0Cited by

2References

14Claims

0Family size

Assignee

Carl Freudenberg KG · DE

Inventors

Rudolf Wagner · Fontnas, CH
Guenter Frey · Schliengen, DE
Klaus Marek · Memmingen, DE
Armin Greiner · Weinheim, DE
Jochen Bialek · Ilvesheim, DE

Key dates

Filing date	Mar 3, 2015
Grant date	Nov 12, 2019
Priority date	—
Expiry date	May 16, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG02B5/0273
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A wet-laid nonwoven having a1) 5-50 wt % matrix fibers and a2) 50-95 wt % at least partially thermally fused binding fibers or b1) 50-80 wt % matrix fibers and b2) 20-50 wt % binders, can be used as a light distributing element.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.