Patent ID: 11860358
Assignee: META PLATFORMS TECHNOLOGIES, LLC
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 4:
5. The eye-tracking system of claim 1, wherein the angular light sensors include:
a light barrier;
a first photodiode configured to receive the returning infrared light;
a second photodiode configured to receive the returning infrared light, wherein the first photodiode is disposed between the light barrier and the second photodiode; and
processing logic configured to receive a first signal generated by the first photodiode and a second signal generated by the second photodiode, wherein the processing logic generates a Center of Mass value based on the first signal and the second signal, wherein the first signal is assigned a first weighting factor that is less a second weighting factor assigned to the second signal in generating the Center of Mass value.