Ocular observation device
US12256992B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Jul 16, 2019 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | Nov 13, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/024
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.