CPC G02B 27/0093 (2013.01) [G02B 27/0179 (2013.01); G02B 2027/0187 (2013.01)] | 18 Claims |
1. An eye-tracking system comprising:
a plurality of infrared light sources configured to emit infrared illumination light to an eyebox region; and
a plurality of angular light sensors configured to receive returning infrared light that is the infrared illumination light reflecting from the eyebox region, wherein the angular light sensors in the plurality are configured to output angular signals representing an angle of incidence of the returning infrared light with respect to positions of the angular light sensors,
wherein each infrared light source is paired with an angular light sensor and separated by less than 500 microns.
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