An optical device is provided. The optical device includes an optical grating. The optical
grating includes two electrodes arranged opposite to each other and a liquid crystal (LC) …

(57) ABSTRACT A liquid crystal cell includes substrates defining a gap and electrodes
having one of (i) an in-plane geometry generating an electric field parallel with the …

(57) ABSTRACT A camera includes a time-of-flight illuminator configured to emit active IR
light and a plurality of spectral illuminators, each spectral illuminator configured to emit …

(57) ABSTRACT A camera includes an optical filter for a sensor array of the camera. The
optical filter includes a plurality of liquid crystal layers switchable between a reflection state …

(57) ABSTRACT A camera system is configured to automatically monitor an area. Depth
image (s) of the area are acquired based on active IR light emitted by the camera system …

An optical element is provided. The optical element includes an optical film including a
birefringent material having a chirality. Optically anisotropic molecules of the birefringent …

An apparatus may include (1) a planar liquid-crystal structure including a plurality of liquid
crystals, and (2) a plurality of electrodes coupled to the planar liquid-crystal structure such …

(57) ABSTRACT A fast flexoelectro-optic switching device containing bime sogen-doped
and polymer-stabilized vertical standing helix (PSVSH) in a cholesteric liquid crystal. The …

A camera includes one or more spectral illuminators, a tunable optical filter optically
intermediate the one or more spectral illuminators and a scene, and a sensor array. The one …

BACKGROUND In some embodiments, the bistable cholesteric liquid crystal switchable
window includes a liquid crystal layer The present disclosure relates to a bistable cholesteric …