Technology

 

AdHawk Microsystems is changing the way people interact with computers by developing breakthrough microsystems that make interaction seamless and effective. Our technology is based on a decade of R&D in semiconductor (CMOS) and micro-electro-mechanical systems (MEMS) design. The CMOS-MEMS technology platform was developed in a world class MEMS design facility at the University of Waterloo with support from the Government of Canada and the United States Defense Advanced Research Projects Agency (DARPA). With years of microsystems research, AdHawk has developed methods to enable precise actuation on an integrated circuit. All technology and products under development are protected by 6 issued and 3 pending U.S. patents that are assigned to the founders.

 
One of the scanning mirrors used for eye and finger tracking (false colour). Total image size is less than 1mm².

One of the scanning mirrors used for eye and finger tracking (false colour). Total image size is less than 1mm².

 

AdHawk’s compact scanner modules use a novel microsystem that is simple and elegant. A micro-scanner positions a diffractive optic element (DOE) to direct a beam of infrared light towards the eye, finger, or head. One or more photodiodes can detect the reflection at a unique angle that corresponds to the user’s gaze direction or finger/head position.

 
The scanner module projects a beam of light onto the cornea, from which it is reflected onto a photodetector to reveal the user's gaze position

The scanner module projects a beam of light onto the cornea, from which it is reflected onto a photodetector to reveal the user's gaze position

This one-of-a-kind technology does not require a camera module or image processing software. AdHawk's system enables truly mobile eye or finger tracking because of its low power consumption. It enables unprecedented speed (3,000Hz) and accuracy in tracking (~0.25 degrees), and it all comes in a tiny package.

Eye movement data obtained using AdHawk's eye tracking system. VOR data was produced with the user’s gaze fixed while their head was rotating. Saccades during normal eye movement and OKR are captured with high fidelity. Velocity from this data has been measured on-the-fly to predict eye position within saccades.

Eye movement data obtained using AdHawk's eye tracking system. VOR data was produced with the user’s gaze fixed while their head was rotating. Saccades during normal eye movement and OKR are captured with high fidelity. Velocity from this data has been measured on-the-fly to predict eye position within saccades.