Visual axis detection apparatus

Details Visual axis detection apparatus Visual axis detection apparatus

1994-12-27

1996-04-16

Sikes, William L.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351205, 351211, A61B 310

Patent

active

055087590

ABSTRACT:
An apparatus for detecting the visual axis of an observer in accordance with light reflected by a photo-sensor by illuminating an eye of the observer includes a controller means for controlling the accumulation time of the photo-sensor or a quantity of light emitted by a light projector so that the reflected light is sufficient to permit the detection of the visual axis.

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