Eye tracking system having an array of photodetectors aligned re

Details Eye tracking system having an array of photodetectors aligned re Eye tracking system having an array of photodetectors aligned re

1992-12-04

1994-07-19

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

345 7, G06M 700

Patent

active

053311493

ABSTRACT:
An eye tracking system is disclosed which is comprised of an eye tracking module formed of a display joined to a photodetector array. Each pixel in the display is aligned with a corresponding photodetector. An image generated by the display is projected onto a viewing screen or toward a viewer. Axial light rays from the display pixels are reflected by the eye and detected by a respective photodetector which generates an electrical signal indicative of eye position.

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