Patent · US Active

Optical switching device

US10598998B2 · kind B2 · utility

1Cited by

1References

28Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Michael Junge · Munich, DE
Andreas Beyer · Hanau, DE
Mila Fischer · Bremke, DE

Key dates

Filing date	Jun 21, 2017
Grant date	Mar 24, 2020
Priority date	—
Expiry date	Jun 21, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG02F2202/046
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An optical switching device comprising a polarisation layer and a switching layer which comprises a liquid-crystalline material and a dye compound. Use of the optical switching device for the regulation of the passage of light through an area element. A window element which has the optical switching device therein.

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