Electronically dimmable optical device

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United States of America Patent

PATENT NO 9304333
APP PUB NO 20140340728A1
SERIAL NO

14445460

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Abstract

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An electronically dimmable optical device, including, in sequence, an active absorbing polarizer; a first static reflective polarizer; an active polarization rotator; and a second static reflective polarizer; configured so that the reflectivity and/or transmissivity of the device can be controlled (increased or decreased) by application of a voltage across the active absorbing polarizer and/or the active polarization rotator. One or more polarization levels can be selected by controlling the voltage at the active absorptive polarizer such that setting the active absorptive polarizer to a selected polarization level determines the brightness of an image produced by the device.

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Patent Owner(s)

Patent OwnerAddress
ALPHAMICRON INCORPORATED1950 STATE ROUTE 59 KENT OH 44240

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Taheri, Bahman Shaker Heights, US 53 734

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