Ocular observation device
AssigneesSorbonne Universite, Centre National de la Recherche Scientifique (CNRS), Inserm (Institut National De La Sante Et De La Recherche Medicale)
InventorsJean LORENCEAU, Suzon AJASSE
Life of this patent
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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.
Claims20
An eye observation device, comprising:
- a detector (10) that produces a signal dependent on variations in the pupil diameter of an eye of a subject;
- a display (20) for presenting to the subject a luminous pattern (25) that is subdivided into a plurality of regions (R1-R9), the display being controlled so that each region has a light intensity modulated at a respective modulation frequency, the modulation frequencies being different from one region to the next, the modulation frequencies being chosen so that none of them is a harmonic of another;
- and
- an analyzer (40) that receives the signal of the detector (10) and that analyzes its frequency content.
Dependencies are inferred from the claim text.