An eye-mountable device (EMD) includes a lens enclosure, liquid crystal material, first and second electrodes, a substrate, and a controller. The lens enclosure includes a first encapsulation layer and a second encapsulation layer sealed to the first encapsulation layer. The liquid crystal material is disposed across a central region of the lens enclosure. The first electrode is disposed within the lens enclosure between the first encapsulation layer and the liquid crystal material. The second electrode is disposed within the lens enclosure between the second encapsulation layer and the liquid crystal material. The substrate is disposed within the EMD. The controller is disposed on the substrate and electrically coupled to the first and second electrodes to apply a voltage across the liquid crystal material.

The invention relates to spectacles, systems and methods for visibility enhancement, including by glare suppression. The spectacles, systems and methods for visibility enhancement includes spectacles and a spectacle lens having a liquid crystal cell (LC), the transmission (TR) of which may be varied by a suitable control and the liquid crystal cell (LC) designed so that the transmission (TR) of the liquid crystal cell (LC) may be switched between high and low transmission states. The liquid crystal cell (LC) includes a control for regulating the times of the state of high transmission (T.sub.on) of the liquid crystal cell (LC) such that the temporal position of the times of the high transmission state (T.sub.on) within a period of times of the high transmission state (T.sub.on) and times of the low transmission state (T.sub.off) may be altered continuously or discontinuously; and/or the duration of a period of times of the high transmission state (T.sub.on) and times of the low transmission state (T.sub.off) may be altered continuously or discontinuously. Such changes may be determined by a secret coding key.

A control system for an optical assembly having a fluid optical cell coupled to a hydraulic drive system includes a detector system that detects a line-of-sight of a user based on electromagnetic energy reflected from an eye of a user. The control system additionally includes a controller configured to determine a distance to an observed object based on the detected line-of-sight. The control system is also configured to control the hydraulic drive system to modify hydraulic pressure applied to the fluid optical cell such that the fluid optical cell is focused on the observed object.

The invention relates to spectacles, systems and methods for visibility enhancement, including by glare suppression. The spectacles, systems and methods for visibility enhancement includes spectacles and a spectacle lens having a liquid crystal cell (LC), the transmission (TR) of which may be varied by a suitable control and the liquid crystal cell (LC) designed so that the transmission (TR) of the liquid crystal cell (LC) may be switched between high and low transmission states. The liquid crystal cell (LC) includes a control for regulating the times of the state of high transmission (T.sub.on) of the liquid crystal cell (LC) such that the temporal position of the times of the high transmission state (T.sub.on) within a period of times of the high transmission state (T.sub.on) and times of the low transmission state (T.sub.off) may be altered continuously or discontinuously; and/or the duration of a period of times of the high transmission state (T.sub.on) and times of the low transmission state (T.sub.off) may be altered continuously or discontinuously. Such changes may be determined by a secret coding key.

An active optical element includes an active material encased between a first substrate and a second substrate, first electrode(s), second electrodes employed as a ground plane, and means for applying and modulating additional impedance between an electrical ground and the second electrodes. The second electrodes divide the active optical element into segments. The first electrode(s) are driven at given voltage(s). At least one of the second electrodes corresponding to at least one of the segments is selectively connected to an electrical ground without any additional impedance, while applying and modulating the additional impedance between the electrical ground and a remainder of the plurality of second electrodes. The active material in the at least one of the plurality of segments is controlled by a potential difference generated between the given voltage(s) and the electrical ground to produce a given optical power.

A meniscus shaped lens module comprises one or more structures that decrease an amount of pressure or force to move one or more surfaces of the lens module and increase a separation distance of anterior and posterior surfaces of the module in order to provide an increase in optical power. A lens structure of the module comprises one or more of a pattern of a surface of a central chamber, a meniscus, a reduced diameter or a soft material in order to provide increased amounts of curvature of an outer contact lens surface with decreased amounts of pressure. The pattern can be formed in one or more of many ways, and may comprise one or more of folds, patterning, bellows or concertinaed surface of an optically transmissive material having a substantially uniform thickness such as a sheet of a membrane material.

An example system includes a bulk steering crystal apparatus having a first lens face and a second concave face. The example bulk steering crystal apparatus further includes a number of steering portions interposed between the first lens face and the second concave face, where each of the steering portions includes a bulk substrate portion including an electro-optical material and a corresponding high-side electrode electrically coupled to the corresponding one of the number of steering portions.

The present disclosure relates to a connector suitable for providing an electronic connection between a control unit and at least one electro-optical component arranged in an electroactive lens for electronic glasses, wherein the electroactive lens has a circumferential rim along which a plurality of exposed contact areas are arranged providing electrical contact with the electro-optical component, the connector comprising a flexible cable connected to the control unit and comprising connection portions to connect to a compressible connector module, a compressible connector module, positioned between the circumferential rim of the lens and the flexible cable and configured to provide an electrical connection between the exposed contact areas and the connection portions, wherein the compressible connector module is configured to be compressed between the lens and the frame, and a sealing unit configured to enclose at least the conductive connection portions of the flexible cable and the compressible connector module.

A non-mechanical, electrically tunable optical system provides both focus and astigmatism power correction with an adjustable axis. The optical system includes three liquid crystal based cylindrical lenses which are simple, low cost, and have compact flat structure.

A lens including a flexible refractive optic having a fixed refractive index, an electro active element embedded within the flexible refractive optic, wherein the electro-active element has an alterable refractive index, and a controller electrically, connected to the electro-active element wherein when power is applied thereto the refractive index of the electro-active element is altered.