Wearable electro-optical device using electrochromic layer
AssigneeiGlass Technology, Inc.
InventorsEVGENIY VLADIMIROVICH VASILIEV, PAVEL ANATOLIEVICH ZAIKIN, NIKITA VALERIEVICH KRUGLIKOV, CHRISTIAN LORENTZEN
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Abstract
Flexible plastic screen for glasses, sunglasses or helmet faceshields with controlled light transmission based on applied electrical voltage. The screen consists of two transparent flexible conductive polymer electrodes disposed and an electrochromic layer disposed between them. The electrochromic layer is a homogeneous mixture of active electrochromic components dissolved in a polymer matrix. The electrochromic screen is operable to vary the light transmission of any wearable electro-optical devices, such as the glasses, for creating an effect of a blackout for augmented/virtual reality glasses.
Claims20
A wearable electro-optical device comprising:
- a. an electrochromic layer comprising electrochromic composition comprising a cathodic component in the form of a quaternary salt of dipyridine, an anodic component in the form of a ferrocene derivative or heterocyclic compound capable of switching between two oxidation states, a polymeric thickener and a solvent, wherein the cathodic component comprises a salt of cation of 1,1′-dialkyl-4,4′-dipyridinium (alkyl group) or 1,1-(alkane-alpha (alkaline spacer), omega-diyl)-bis-(1′-alkyl-4,4′-dipiridinium) with weakly coordinated anions;
- b. a controller electrically coupled to the electrochromic layer and configured to apply a controlling voltage to the electrochromic layer in response to a received control command to vary light transmittance of the electrochromic layer;
- and
- c. a power source for supplying electrical power to the controller.
Dependencies are inferred from the claim text.