Abstract
A microsystem for precise tracking of human eye movements has been developed to meet the stringent requirements of wearable augmented/virtual (A/VR) systems. Eyeglasses retrofitted with the reported microsystem achieve robust tracking with a 120Hz refresh rate and 0.40 RMS noise within a 20mW power budget. The key component in the present system is a compact (650μm x 500μm) scanning diffractive optic element (DOE) that projects and scans a crosshair pattern over a 450 x 450 range.
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CITATION STYLE
Sarkar, N., Strathearn, D., Lee, G., Olfat, M., Rohani, A., O’Hanlon, B., & Mansour, R. R. (2016). Scanning diffractive optic elements for untethered eye-tracking microsystems. In 2016 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2016 (pp. 40–42). Transducer Research Foundation. https://doi.org/10.31438/trf.hh2016.11
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