Device and method for measuring viewing distances
US11058294B2 · kind B2 · utility
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5References
17Claims
0Family size
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Key dates
| Filing date | Apr 10, 2017 |
| Grant date | Jul 13, 2021 |
| Priority date | — |
| Expiry date | Aug 31, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C13/005
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a distance measuring system. The distance measuring system comprises a distance measuring sensor, a memory unit and a processing unit. The distance measuring sensor is adapted and arranged to measure viewing distances between a subject's eyes and one or more objects. The memory unit is adapted to store the measured viewing distances in a set of measured viewing distances. The processing unit is adapted to determine a statistical distribution of the measured viewing distances from the set of measured distances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.