Patent ID: 11947128
Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA
Field: Optics (Instruments)
Classification: CPC G | IPC F  G

Claim 7:
8. A digital illumination assisted gaze tracking for augmented reality near to eye display device, comprising:
a digital micromirror device having a controller, wherein the digital micromirror device is a micro electro mechanical system having an array of micro mirrors and pixels;
an illumination beam generated by the digital micromirror device along an optical path, having an angle of incidence;
a quad detector being in communication with the digital micromirror device and positioned along the optical path such that it can receive a reflected illumination beam having a gaze angle; and
a servomechanism controller in communication with the digital micromirror device controller, such that a feedback loop is formed wherein a signal is produced by the quad detector is sent to the digital micromirror device, wherein the digital micromirror device controller adjusts the angle of incidence based upon the feedback loop, integrates the feedback, integrates the feedback signal over time, and time-multiplexes the illuminating beam.