Abstract: An electrowetting optical device includes a conductive liquid, a non-conductive liquid, and a substrate. The conductive liquid is buffered to an acidic pH. The conductive liquid and the non-conductive liquid are immiscible. The substrate includes a dielectric topcoat. The conductive liquid and the non-conductive liquid are in contact with the dielectric topcoat. The dielectric topcoat is a plasma-deposited organosilane precursor having the molecular formula SiOxCyHz.

Abstract: A liquid lens device with a liquid lens that comprises: first and second immiscible fluids defining an interface moveable by electrowetting, cap and base portions, a gasket positioned between the cap and base portions, an upper window positioned within the base portion, and a lower window positioned within the base portion. The windows are facing and substantially parallel to each other and the fluids are sealed within the cap and base portions, gasket and windows. The device further includes a flexible printed circuit or printed circuit board comprising top and bottom electrodes in electrical contact with the respective cap and base portions of the liquid lens; and a spring washer comprising a substantially circular-shaped body. Further, the spring washer is configured to apply a clamping force of 1 to 10 N between (a) the top electrode and the cap portion, and (b) the bottom electrode and the base portion.

Abstract: Electrowetting optical devices can comprise a first electrode at least partially circumscribing a first optical window and a second electrode at least partially circumscribing a second optical window. The second optical window may be aligned with the first optical window in a direction of the optical axis. A central region may be defined by a projection of a footprint of the second optical window. An interface between a first liquid and a second liquid that may be disposed within a containment region may form a lens. In some embodiments, a thickness of a second dielectric portion at least partially circumscribing the central region may be greater than a thickness of a thirst dielectric portion within the central region. In some embodiments, a capacitance per area of the device upon application of a maximum operating voltage may be in a range from about 0.1 pF/mm2 to about 3.5 pF/mm2.

Abstract: A liquid lens device includes: first and second immiscible fluids defining an interface moveable by electrowetting; a cap portion; a base portion; a gasket positioned between the cap portion and the base portion; an upper window positioned within the cap portion; and a lower window positioned within the base portion, the windows facing and substantially parallel to each other. The lower window comprises opposing primary surfaces and an edge. The lower window is joined to the base portion with an adhesive, the adhesive positioned in contact with a portion of one or more of the primary surfaces and the edge. The fluids are sealed within the cap portion, base portion, gasket and windows. Further, a height of the edge of the lower window is greater than 0.3 mm and less than 1.2 mm.