The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 09, 2025
Filed:
Mar. 04, 2024
Sioptica Gmbh, Jena, DE;
André Heber, Jena, DE;
Markus Klippstein, Jena, DE;
siOPTICA GmbH, Jena, DE;
Abstract
The invention relates to a switchable light filter (), comprising a first optical element (), in turn comprising a plurality of light-absorbing transition dipole moments, so that light, which is incident into the first optical element (), is transmitted or at least partially absorbed as a function of its direction of incidence with respect to the first optical element () and its polarization state, means for optionally generating a first electric field (EF) or a second electric field (EF), a liquid crystal layer (), onto which the first electric field (EF) or the second electric field (EF) acts, so that the transmission properties of the switchable light filter () differ between a first operating mode B. The invention further discloses lighting devices and screen, which use an afore-described switchable light filter ().