ELECTRONIC OPHTHALMIC LENS WITH EYE CLOSED SENSOR WITH OPEN EYE PROMPT AND DATA LOGGING

摘要

An eyelid position sensor system for an ophthalmic lens comprising an electronic system is described herein for determining at least one of drowsiness or sleep onset of the wearer. The eyelid position sensor system is part of an electronic system incorporated into the ophthalmic lens. The electronic system in at least one embodiment includes a power source, power management circuitry, one or more sensors, clock generation circuitry, control algorithms and circuitry, and an alert mechanism. The eyelid position sensor system is utilized to determine eyelid position and use this information to determine if the wearer is asleep or awake.

主权项

1. A powered ophthalmic lens, the powered ophthalmic lens comprising:
a contact lens; and an eyelid position sensor system incorporated into the contact lens, the eyelid position sensor system including a sensor array having a plurality of individual sensors vertically spaced from each other to detect eyelid position, a system controller configured to sample each individual sensor in the sensor array to detect eyelid position and provide an output control signal, and at least one alert mechanism configured to receive the output control signal and capable of at least one of providing an alert and storing data in response to a determination by the system controller that the eyelid has been closed for a period of time indicative of at least one of onset of sleep and drowsiness.