LIQUID LENS WITH GRAVITY SAG CORRECTION

A liquid lens includes a substrate, a transparent elastic membrane forming a cavity with the substrate, and a transparent fluid filling the cavity between the substrate and the membrane. The membrane has a pre-distorted, rotationally asymmetric shape in absence of the fluid in the cavity. When the c...

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Bibliographische Detailangaben
Hauptverfasser:	CRESSMAN, Laura, DIAZ, Liliana Ruiz, RANSLEY, James Howard Thomas, WELLS, Spencer Allan, LIAO, Christopher Yuan Ting, STIPE, Christopher, ELABBASI, Nagi Hosni, DIEST, Kenneth Alexander, OUDERKIRK, Andrew John, MASOOD, Taha
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CONTACT LENSES OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS SPECTACLES SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
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Beschreibung
Zusammenfassung:	A liquid lens includes a substrate, a transparent elastic membrane forming a cavity with the substrate, and a transparent fluid filling the cavity between the substrate and the membrane. The membrane has a pre-distorted, rotationally asymmetric shape in absence of the fluid in the cavity. When the cavity is filled with the fluid and the substrate is disposed vertically w.r.t. gravity at a pre-defined clocking angle, the membrane adopts a substantially rotationally symmetric shape due to elasticity of the membrane counteracting gravity exerting a downward force on the fluid in the cavity, reducing the effect of the gravity sag on optical performance of the liquid lens.