Method for determining a behavioural, postural or geometric-morphological characteristic of a person wearing spectacles
US9952447B2 · kind B2 · utility
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3References
21Claims
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Key dates
| Filing date | Mar 8, 2013 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Mar 31, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C13/005
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for determining at least one behavioral, postural or geometric-morphological characteristic of a person wearing spectacles, the method includes the steps of: a) illuminating the wearer's head using an infrared light source (220, 230, 240), b) acquiring an image of the wearer's head using an infrared image sensor (210); c) in the image, locating reflections from the infrared light surface, reflected by the two lenses of the spectacles; and d) using a computation unit (250) to deduce the required characteristic as a function of the positions of the reflections in the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.