Depending on how long the eyelid remains closed, the lenses could distinguish voluntary movements from accidental blinking.
By closing their eyelids on purpose, users could switch the camera mode on and off.
This internal storage mechanism is what makes Sonys patent different from that of Samsung.
Samsungs contact lenses require that the captured images be sent to another equipment, such as a smartphone.
Similarly, Sonys patent explains a display showing additional controls that can be activated by a tilt sensor.
The contacts could also correct blurry images, manage auto focus, zooming and aperture controls.
This makes it possible to make an intelligent contact lens, thereby remarkably improving usability.
source: www.techworm.net