“We’ve been integrating our eye tracking solution into products like VR and AR headsets,” Sarkar said. “But because of the timelines, for some of the products that will ship, we don’t want to have to be at the mercy of a [manufacturer] for our tech to actually see the light of day. So we decided to just launch our own product. So that’s what the MindLink is — lightweight glasses that have eye tracking.”
AdHawk replaces cameras with ultra-compact MEMS that eliminate power-hungry image processing, thereby improving speed and energy efficiency by more than twice its nearest competitor, the company claims. Once the patient is wearing the AdHawk MindLink glasses, they launch the app and tap “start tracking.” The system is so fast it can accurately predict where a user will look next — up to 20 milliseconds before their eyes fixate — and gaze is captured 500 times per second with better than one degree of accuracy, according to AdHawk.
“Any time the beam hits a part of the eye, that reflects it onto a photo detector, and we receive a pulse,” Sarkar said. “Sometimes we receive pulses from corneal glints, which are just like reflections off the surface of your cornea. But sometimes we receive pulses when the beam crosses the threshold between your iris and your pupil. So we’re able to both measure your cornea and pupil thousands of times per second with the sensor.”