How Sony’s Contact Lens Records a Video?
First, the intelligent contact lens by Sony calibrates its camera with a wearer’s blink which is used in figuring out the eyelid closing time. This helps in deleting frames where a video goes dark due to eyelid closure.
The lens also measures the tilt of an eye. So that it can correct the tilted frames of a video.
The lens uses piezoelectric sensors to figure out eyelids closure time – wink. A gyro sensor is used to measure the tilt. And it uses electromagnetic induction to receive power.
Other than that, the camera of Sony’s lens is also capable of performing autofocus, automatic exposure adjustment, aperture stop adjustment, and zooming
Another interesting thing is the priority date of the patent US20160097940. It is May 2, 2013 which means that Sony, like Google and Samsung, has been working on a smart contact lens for quite some time.
