AR tagged posts

Modern imaging systems, such as those used in smartphones, virtual reality (VR), and augmented reality (AR) devices, are constantly evolving to become more compact, efficient, and high-performing. Traditional optical systems rely on bulky glass lenses, which have limitations like chromatic aberrations, low efficiency at multiple wavelengths, and large physical sizes. These drawbacks present challenges when designing smaller, lighter systems that still produce high-quality images.

To overcome these issues, rese...

Integrating eye tracker into a regular pair of glasses, the system relies on NIR lights and photodiodes for eye tracking and is powered by two thin solar cells on the arms of the glasses.
Credit: Photo courtesy of DartNets Lab

Battery-free eye-tracking glasses developed at Dartmouth College could create an even more realistic experience for augmented reality enthusiasts. The new technology improves player controls for gaming and allows for more accurate image displays.

High power consumption and cost have kept eye trackers out of current augmented reality systems. By using near-infrared lights and photodiodes, Dartmouth’s DartNets Lab has created an energy-efficient, wearable system that tracks rapid eye movements and allows hands-free input of system commands.

The glasses, which can also h...