HEAD-MOUNTED DISPLAY WITH OPTICALLY TRANSPARENT ACTUATOR

HEAD-MOUNTED DISPLAY WITH OPTICALLY TRANSPARENT ACTUATOR

An electroactive ceramic may be incorporated into a transparent optical element and may characterized by an average grain size of less than 200 nm, a relative density of at least 99%, and a transmissivity within the visible spectrum of at least 50%, while maintaining a d33 value of at least 20 pC/N....

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WELLS, Spencer, Allan, OUDERKIRK, Andrew, John, SMYTH, Katherine, Marie
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ELECTRICITY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Beschreibung
Zusammenfassung:An electroactive ceramic may be incorporated into a transparent optical element and may characterized by an average grain size of less than 200 nm, a relative density of at least 99%, and a transmissivity within the visible spectrum of at least 50%, while maintaining a d33 value of at least 20 pC/N. Optical properties of the electroactive ceramic, including transmissivity, haze, and clarity may be substantially unchanged during actuation of the optical element and the attendant application of a voltage to a layer of the electroactive ceramic.