OCULAR OBSERVATION DEVICE
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United States of America Patent
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Issued Date -
Aug 26, 2021
app pub date -
Jul 16, 2019
filing date -
Jul 20, 2018
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Abstract
Disclosed is a device including a detector producing a signal depending on variations of the pupil diameter of an eye of a subject, a display for presenting, to the subject, a light pattern subdivided into a plurality of regions, and an analyzer receiving the signal of the detector and analyzing the frequential content thereof. The display is controlled such that each region has a light intensity modulated at a respective modulation frequency, the modulation frequencies being different from one region to the next.
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